Answer:
Step-by-step explanation:
The first step is to find the slope of the tangent line. To do that, we need to find the derivative of f(x):
f(x) = sin(x) + 2cos(x)
f'(x) = cos(x) - 2sin(x)
Now we can find the slope of the tangent line at x=0 by plugging in x=0 into f'(x):
f'(0) = cos(0) - 2sin(0) = 1
Therefore, the slope of the tangent line at x=0 is 1.
Next, we need to find the y-coordinate of the point on the graph where x=0. To do that, we simply plug in x=0 into f(x):
f(0) = sin(0) + 2cos(0) = 2
Therefore, the point on the graph where x=0 is (0, 2).
Now we can use the point-slope form of the equation of a line to find the equation of the tangent line:
y - y1 = m(x - x1)
where m is the slope and (x1, y1) is the point on the line. Plugging in m=1 and (x1, y1) = (0, 2), we get:
y - 2 = 1(x - 0)
Simplifying, we get:
y = x + 2
Therefore, the equation of the tangent line is y = x + 2.
Answer:
The equation of the tangent line at x = 0 can be found by differentiating the function f(x) and using the point-slope form of a line.
The derivative of f(x) is f'(x) = cos(x) - 2sin(x). Substituting x = 0 into f'(x) gives f'(0) = cos(0) - 2sin(0) = 1 - 0 = 1.
Therefore, the equation of the tangent line is y = 1x + b, or y = x + b.
To find the value of b, we can plug in x = 0 and y = f(0) = sin(0) + 2cos(0) = 2 into the equation. Solving for b, we get 2 = 0 + b, so b = 2.
Therefore, the slope-intercept equation of the line tangent to the graph of y = f(x) at the point (0,2) is y = x + 2.
The graph below shows the cost of college tuition per credit hour at a local community college.
(graph in image)
Write the equation in slope-intercept form for the cost of college tuition in terms of the number of credits. Then, complete the table of values for the function.
y = __x + __
How much money, y, will it cost to take 12 college credits, x?
It will cost $___.
Answer:
y = 350x + 225
It will cost $4425 for 12 credits
Step-by-step explanation:
From the two points shown in the graph, we can write the equation of the line.
(5, 1975), (8, 3025)
slope = m = (y_2 - y_1)/(x_2 - x_1) = (3025 - 1975)/(8 - 5) = 1050/3 = 350
y = mx + b
y = 350x + b
1975 = 350 × 5 + b
b = 225
The equation is
y = 350x + 225
For 12 credits, x = 12.
y = 350 × 12 + 225
y = 4425
Answer: It will cost $4425 for 12 credits
Solve the system by substitution.
Answer:
x=3
y=-34
this should be correct
T/F?The probability of the union of two events occurring can never be more than the probability of the intersection of two events occurring.
This statement is False as the probability of intersection of two events is always less than the probability of union.
This assertion is untrue. Contrary to popular belief, the likelihood of two occurrences coming together is always higher than or on pair with the likelihood of them colliding.
The chance of two events A and B occurring together can be calculated using the following formula to see why:
P(A ∪ B) = P(A) + P(B) - P(A ∩ B)According to this equation, the probability of A and B joining together is equal to the total of their individual probabilities less the likelihood of their colliding.
When we rewrite this calculation and focus only on the likelihood of the intersection, we obtain:
P(A ∩ B) = P(A) + P(B) - P(A ∪ B)Now it is clear that the probability of the intersection is determined by subtracting the probability of their union from the sum of the probabilities of A and B.
P(A) and P(B) are both less than or equal to P(A B), since probabilities can never be negative. P(A + B) is therefore less than or equal to twice P(A + B) when they are added together. Thus, it follows:
P(A) + P(B) - P(A ∪ B) ≤ P(A ∪ B)This indicates that, contrary to what the original statement implied, the probability of the intersection is not greater than or equal to the probability of the union.
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Kyle runs 18 miles in 112.5 minutes. If he continues at this rate, how long will it take him to complete the marathon (26.2 miles)?
What is the value of 30 ml in teaspoon?
The conversion from ml to teaspoon is 1 ml = 0.202884 tsp. This means that 30 ml is equal to 6.08652 teaspoons.
This conversion can be calculated by multiplying the volume in ml with 0.202884. The formula for this conversion is Volume (tsp) = Volume (ml) x 0.202884. For example, if the volume is 30 ml, the calculation would be 30 ml x 0.202884 = 6.08652 tsp. This means that 30 ml is equal to 6.08652 teaspoons.To convert between other units of volume, such as liters and gallons, the conversion factor must be changed. For example, to convert from liters to teaspoons, the conversion factor would be 0.0147867. To convert from gallons to teaspoons, the conversion factor would be 76.7526. It is important to remember that the conversion factor must be changed depending on the units being converted.In conclusion, 30 ml is equal to 6.08652 teaspoons. The conversion from ml to teaspoon is done by multiplying the volume in ml with 0.202884. To convert between other units of volume, the conversion factor must be changed.
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{PLEASE HELP FOR 100 POINTS}
{DUE TODAY}
Select the correct answer.
Alex is surveying a car company. She decides to start by interviewing some people in her neighborhood. She prepares a questionnaire and emails it to 50 neighbors who own cars. Of those neighbors, 24 responded. Why is this sample likely to be biased?
A.
Alex sent a questionnaire by email instead of going door to door.
B.
Alex sent the questionnaire only to those who live near her.
C.
Not everyone who got the questionnaire responded.
D.
Those who got the questionnaire may not have responded on time.
Answer: B Alex sent the questionnaire only to those who live near her.
Step-by-step explanation:
it is because it were her nieghbors
15) If a square prism has a volume of 104 cubic centimeters and a height of eight centimeters, explain how to
find the area of the side that is a square.
Answer:
141 cm^2
Step-by-step explanation:
Given: V = 104 cm3, h = 8 cm
Since V = Bh, where B is the area of the base, and h is the height of a prism, then
B = V/h substitute the given values:
B = 104 cm3/8 cm
B = 13 cm2, which tells us that the long side of the square base equals the square root of 13.
The surface area of a prism = L.A. + 2B, where L.A. is the lateral area of the prism.
L.A. = pH, where p is the perimeter of the base.
Since p = 4(square root of 13) cm, h = 8cm, and B = 13 cm2, we have:
Surface Area = pH + 2B = [4(square root of 13) cm](8 cm) + 2(13 cm2) = 115.38 cm2 + 26 cm2 = 141 cm2
Thus, the surface area of the prism is approximately 141 cm2.
Sophia and Joseph are making fruit salads for a picnic. Sophia mixes 5 cups of melon and 2 cups of apple and Joseph mixes 8 cups of melon and 5 cups of apple. Use Sophia and Joseph's percent of melon to determine whose fruit salad will taste more melony.
Based on the percentage of melons, Sophia's fruit salad will taste more Melony than Joseph's.
What is the percentage?The percentage is the quotient of the numerator and denominator.
Like ratios, percentages show the relative size of a value compared to another.
Percentages are expressed as the quotient multiplied by 100.
Sophia Joseph
Cups of melon 5 8
Cups of apple 2 5
Ratios 5:2 8:5
The sum of ratios 7 13
Percentages of melon to apple:
Sophia Joseph
71.43% (5/7 x 100) 61.54% (8/13 x 100)
Thus, using the percentage of melon to apple, we can conclude that Sophia's fruit salads tastes 71.43% more Melony than Joseph's.
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A farmer can buy two types of plant food, mix A and mix B. Each cubic yard of mix A contains 20 pounds of phosphoric acid, 30 pounds of nitrogen, and 5 pounds of potash. Each cubic yard of mix B contains 10 pounds of phosphoric acid, 30 pounds of nitrogen, and 10 pounds of potash. The minimum monthly requirements are 460 pounds of phosphoric acid, 960 pounds of nitrogen, and 220 pounds of potash. If x is the number of cubic yards of mix A used and y is the number of cubic yards of mix B used, write a system of linear inequalities that indicates appropriate restraints on x and y. Find the set of feasible solutions graphically for the amounts of mix A and mix B that can be used.
Graphically, the feasible solutions represent the points in the x-y plane that are inside the region defined by the three lines, and they can be found by plotting the three lines and shading the region below each line. The feasible solutions are the points in the shaded region that are common to all three.
Let x be the number of cubic yards of mix A used, and y be the number of cubic yards of mix B used. Then the total amount of phosphoric acid, nitrogen, and potash can be expressed as follows:
Phosphoric acid: 20x + 10y >= 460
Nitrogen: 30x + 30y >= 960
Potash: 5x + 10y >= 220
These inequalities represent the minimum monthly requirements for phosphoric acid, nitrogen, and potash. To find the feasible solutions, we need to find the values of x and y that satisfy all three inequalities simultaneously. This can be done graphically by plotting the three inequalities on the same coordinate plane and finding the region that is common to all three.
To plot the inequalities, we can choose convenient values for x and y, substitute them into the inequalities, and find the corresponding values of the right-hand side. For example, if we choose x = 0 and y = 0, then we have:
Phosphoric acid: 20 * 0 + 10 * 0 >= 460
Nitrogen: 30 * 0 + 30 * 0 >= 960
Potash: 5 * 0 + 10 * 0 >= 220
which gives us:
Phosphoric acid: 0 >= 460
Nitrogen: 0 >= 960
Potash: 0 >= 220
These values are all negative, which means that x = 0 and y = 0 do not satisfy the inequalities.
Next, we can choose x = 1 and y = 0, then we have:
Phosphoric acid: 20 * 1 + 10 * 0 >= 460
Nitrogen: 30 * 1 + 30 * 0 >= 960
Potash: 5 * 1 + 10 * 0 >= 220
which gives us:
Phosphoric acid: 20 >= 460
Nitrogen: 30 >= 960
Potash: 5 >= 220
These values are also negative, which means that x = 1 and y = 0 do not satisfy the inequalities either.
We can continue this process until we find values of x and y that satisfy all three inequalities. The feasible solutions are the values of x and y that satisfy all three inequalities, and they are represented by the region in the x-y plane that is common to all three. The feasible solutions can be found by shading the region below each of the lines representing the inequalities, and the set of feasible solutions is the region that is common to all three shaded regions.
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what is 250 seconds in minutes
We know that 60 second is equal to 01 Minutes.
and 90 second is equal to 01 and half minutes.
Therefore, 04 minutes and 10 seconds consists 250 second.
Second:
The second is the critical unit of time. The default unit of time in the SI system of units. It can be defined as the time required for an electromagnetic field to propagate through a vacuum of 3 x 10 5 km.
1 solar day consists of 86,400 seconds. One minute is 60 seconds.
The second is not small enough and is limited to use by scientists and engineers, so we got a smaller unit like this:
1 millisecond equals 10 -3 seconds.1 microsecond, equal to 10 -6 seconds.1 nanosecond, 10 -9 seconds.10 -1 picosecond equal to 12 seconds.Minutes:
Minutes are a significant unit of time. Equal to 60 seconds. One hour includes 60 minutes. Minutes can be expressed as min. Included in the SI measurement system.
According to the Question:
250 seconds = 4 minutes and 10 seconds.
To obtain this result proceed as follows:
Divide 250/60, take the integer part of INT(250/60) and write it as minutes: 4.
Calculate the remainder, MOD(250,60), and write it down as seconds: 10.
Proof: (4 × 60) + 10 = 250.
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If you were given the choice of between more initial zombies, but a slower growth rate or fewer initial zombies, but a greater growth rate, which would you pick and why? use at least 3 of these words in the answer, initial value, rate of change, exponential growth or exponential decay.
I would chose more initial zombies, but a slower growth rate because when they grow stronger, you get stronger so you have a better chance of survival if their development rate is gradual, giving you time to collect weapons and construct a shelter.
What is growth rate?Growth rate refers to the percentage increase or decrease in a particular variable over a specific period of time. It is commonly used in finance, economics, and business to describe the rate of change of various economic indicators such as gross domestic product (GDP), population, revenue, profit, and so on.
To calculate the growth rate, you need to divide the difference between the final value and the initial value of the variable by the initial value, and then multiply the result by 100 to express it as a percentage. The formula for growth rate is as follows:
Growth rate = ((Final value - Initial value) / Initial value) x 100
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Maileen has a stamp colection. Seventy percent of her is 300 stamps are philippine stamps. How many philipine stamps does Maileen have?
Maileen has 210 Philippine stamps in her collection. This equation can be read as 70 percent of 300, which is equal to 210.
Maileen has a stamp collection of 300 stamps. 70% of the stamps are Philippine stamps. To calculate the number of Philippine stamps Maileen has, we can use the following equation:
(70/100) x 300 = 210
Therefore, Maileen has 210 Philippine stamps in her collection. This equation can be read as 70 percent of 300, which is equal to 210. The equation can be expressed as a fraction, with the numerator being 70, and the denominator being 100. Multiplying the fraction by 300 gives us the answer. In this case, 70 percent of 300 is equal to 210.
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A scatter plot is shown on the coordinate plane. scatter plot with points plotted at 1 comma 7, 1 comma 10, 2 comma 6, 3 comma 7, 3 comma 8, 5 comma 8, 6 comma 6, 7 comma 4, 9 comma 2, and 10 comma 1 Which two points would a line of fit go through to best fit the data? (1, 10) and (10, 1) (1, 7) and (2, 6) (3, 7) and (7, 4) (3, 8) and (6, 6)
The two points that lie on the line of the best fit are (3, 7) and (7, 4).
What is the line of best fit?A straight line that minimizes the gap between it and certain data is called a line of best fit. In a scatter plot containing several data points, a relationship is expressed using the line of best fit. It is a result of regression analysis and a tool for forecasting indicators and price changes.
Given:
The data values of the scatterplot are given in the image below.
The line of the best fit and the calculation are given in the image below.
From the graph;
(3, 7) and (7, 4) are the two points that lie on the line of the best fit.
Therefore, (3, 7) and (7, 4) are the two points.
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if you borrow $500 for 4 years at an annual interest rate of 6 years how much will you pay altogether
The amount will be after 4 years at interest rate of 6%, $624.76
To calculate the total amount you will pay after borrowing $500 for 4 years at an annual interest rate of 6%, you can use the formula for compound interest:
A = P x (1 + r/n)^(nt)
where:
A is the total amount,
P is the principal amount (the initial amount borrowed),
r is the annual interest rate as a decimal,
n is the number of times interest is compounded per year,
t is the number of years the money is borrowed for.
In this case, P = $500, r = 6%, n = 1 and t = 4.
So, the formula becomes:
A = $500 x (1 + 0.06/1)^(1 x 4)
A = $500 x (1.06)⁴
A = $500 x 1.249536
A = $624.76
Therefore, you will pay a total of $624.76 after borrowing $500 for 4 years at an annual interest rate of 6%.
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The equation, 3x2 + 6x + 3y2 + 7y + 4 = 0, represents a conic. The conic represented by the equation is a/an because.
The ratio of the variables makes the equation a circle [tex]x^2\: and \:y^2[/tex] must be equal,
A circle is a particular type of ellipse in mathematics or geometry where the eccentricity is zero and the two foci are congruent. A circle is also known as the location of points that are evenly spaced out from the centre. A circle's radius is calculated by measuring it from the centre to the edge.The line that splits a circle into two identical halves is its diameter, which is also twice as wide as its radius.A circle's radius may be measured, making it a basic 2D shape.The inner and exterior parts of the aircraft are separated by the circles.
Equation of a circle
Circle's standard equation is written as
[tex]x^2+y^2+2gx+2fy+C=0[/tex]
Given the equation of the circle
[tex]3x^2 + 6x + 3y^2 + 7y + 4=0[/tex]
Rearrange the equation
[tex]3x^2 + 6x + 3y^2 + 7y + 4=0\\3x^2 + 3y^2+ 6x + 7y + 4=0\\[/tex]
The equation is a circle because the ratio of [tex]x^2\: and \:y^2[/tex] must be equal,
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Answer:
hope this helps.
Step-by-step explanation:
What is -3x+y=6 on a graph?
A freight elevator can hold a maximum weight of 2,500 pounds. A 180-pound person has a load of boxes to deliver. Some of the boxes weigh 25 pounds each, and some weigh 60 pounds each. Complete parts (a)-(c). Question content area bottom Part 1 a. Write and graph an inequality that represents the number of boxes the elevator can hold in one trip if the person is not in the elevator. Let x represent the number of 25-pound boxes, and let y represent the number of 60-pound boxes. Write an inequality that represents the number of boxes the elevator can hold in one trip if the person is not in the elevator.
The inequality is 25x + 60y + 180 ≤ 2500. x and y are variables.
What is inequality?
In mathematics, inequalities specify the relationship between two non-equal values. Equal does not imply inequality. Typically, we use the "not equal symbol (≠)" to indicate that two values are not equal. But various inequalities are used to compare the values, whether it is less than or greater than.
Given that a 180-pound person has a load of boxes to deliver. There are types of boxes. The weight of the first type of box is 25 pound and the second type of box is 60 pounds.
Let x represent the number of 25-pound boxes, and let y represent the number of 60-pound boxes.
The weight of x number of boxes is 25x
The weight of y number of boxes is 60y
The person carrying the box means he is also in the elevator.
The total weight of the boxes and the person is 25x + 60y + 180.
The elevator can hold a maximum weight of 2,500 pounds.
The wight of the boxes and the person must be less than or equal to 2500 pounds.
The inequality is
25x + 60y + 180 ≤ 2500
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The table below shows the value in dollars of a car at the end of x years
The exponential function that models this situation is y = 11,000 (0.85)ˣ. The correct answer would be an option (B).
What is an exponential function?An exponential function is defined as a function whose value is a constant raised to the power of an argument is called an exponential function.
The table below shows the value in dollars of a car at the end of x years.
Number of Years, xValue, v(x) (dollars)
0 11,000
1 9,350
2 7,948
3 6,755
Let the formula for an exponential function would be as
⇒ v(x) = abˣ
Substitute the value of x = 0 and v(x) = 11,000 in the above equation,
⇒ 11,000 = ab⁰
⇒ a = 11,000
Now, substitute the value of x = 1 and v(x) = 9,350, and we get
⇒ 9,350 = ab¹
⇒ 9,350 = (11,000)b
⇒ b = 9,350/11,000
⇒ b = 0.85
Substitute the value of a = 11,000 and b = 0.85 in v(x) = abˣ,
⇒ y = 11,000 (0.85)ˣ
Thus, the exponential function is y = 11,000 (0.85)ˣ.
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PLEASE HELP ASAP
a human factors expert recommends that there be at least 12 square feet of floor space in a college classroom for every student in the class due to lack of space a university converts a 24 by 27 foot conference room into a classroom find the max number of students the room can accommodate
Answer:
The room can accommodate 4.5 students.
Step-by-step explanation:
12 square feet = 144 square inches of floor space
24 x 27 = 648 square feet of floor space
648 / 144 = 4.5
The room can accommodate 4.5 students.
5/18+4/9 I need help pls NPC
Answer:
13/18
Step-by-step explanation:
Answer:
13/18
Step-by-step explanation:
5/18 + 4/9 .Steps for adding fractions. Find the least common denominator or LCM of the two denominators
Find the area inside the loop of the following limacon: r=7−14sinθ
The area inside the loop of the limacon given by the polar equation r = 7 - 14sin(θ) is 294π square units.
To find the area inside the loop of the limacon given by the polar equation r = 7 - 14sin(θ), we need to evaluate the integral for half of the area and then double the result.
The curve of the limacon has a loop when 0 ≤ θ ≤ π, so we integrate from 0 to π. The area can be calculated as follows:
A = 2 ∫₀^π 1/2 r² dθ
Using the equation for r given, we can substitute and simplify:
A = 2 ∫₀^π 1/2 (7 - 14sin(θ))² dθ
A = 2 ∫₀^π 1/2 (49 - 196sin(θ) + 196sin²(θ)) dθ
A = ∫₀^π (98 - 392sin(θ) + 392sin²(θ)) dθ
Using the trigonometric identity 1 - cos(2θ) = 2sin²(θ), we can simplify further:
A = ∫₀^π (98 - 392sin(θ) + 196 - 196cos(2θ)) dθ
A = ∫₀^π (294 - 392sin(θ) - 196cos(2θ)) dθ
Integrating with respect to θ:
A = [294θ + 392cos(θ)sin(θ) + 98sin(θ)]₀^π
Evaluating at the limits of integration, we get:
A = [294π + 0 + 0] - [0 + 392cos(0)sin(0) + 98sin(0)]
A = 294π - 0 - 0 = 294π
Therefore, the area inside the loop of the limacon r = 7 - 14sin(θ) is 294π square units.
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Solve for x provide proofs. Helppp
Answer:
36 degrees
Step-by-step explanation:
since your trying to find x you know that a wright angle is 90 degrees you minus 54 from 90
Solve for x show proofs
The value of the hypotenuse , x is 19.2
How to determine the value of the hypotenuse , xFrom the question, we have the following parameters that can be used in our computation:
Rise = 17
Length = 9
The value of the hypotenuse , x is calculated as
x^2 = Rise^2 + Length^2
Substitute the known values in the above equation, so, we have the following representation
x^2 = 17^2 + 9^2
So, we have
x^2 = 370
Take the square root of bpth sides and evaluate
x = 19.2
Hence, the value of x is 19.2
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Write a function that models y in terms of x. Round any coefficients to the nearest tenth.
X 0 5 10 15 20
y 0 4.02 5.69 6.97 8.05
y= ?
The exponential equation representing the given table is -
y = 2.84(1.072)ˣ.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is a function table as shown in below -
{X} 0 5 10 15 20
{Y} 0 4.02 5.69 6.97 8.05
Let the expression be -
y = A(B)ˣ
At {x} = 5, y = 4.02.
We can write -
4.02 = A(B)⁵ ... Eq { 1 }
At {x} = 10, {y} = 5.69
We can write -
5.69 = A(B)¹⁰ ... Eq { 2 }
Refer to the graph. The point of intersection represents -
A = 2.84
B = 1.072
The equation would be -
y = 2.84(1.072)ˣ ... Eq { 3 }
Therefore, the exponential equation representing the given table is -
y = 2.84(1.072)ˣ.
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A restaurant charges $4. 50 for a slice of pizza that is 1/4 of a pizza and $4. 00 for a slice that is 1/6 of a pizza. One day they cooked 6 pizzas that were all the same size. If they sell all the slices, would they make more money by slicing each pizza into fourths or sixths? How much more? Explain
The restaurant would make more money by slicing each pizza into sixths. The restaurant would make $36 more than if they sliced each pizza into fourths.
To determine if the restaurant would make more money by slicing each pizza into fourths or sixths, we need to calculate the total amount of money they would make for each option.
Option 1: Slicing each pizza into fourths
Option 2: Slicing each pizza into sixths
Each pizza would have 6 slices, so 6 pizzas would have a total of 36 slices.Each slice would be sold for $4.00, so the total amount of money made would be 36 slices × $4.00/slice = $144.Comparing the two options, we can see that the restaurant would make more money by slicing each pizza into sixths. They would make $144 - $108 = $36 more by slicing each pizza into sixths instead of fourths.
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The figure is cut into 8 equal pieces. Shade 1/2 of the figure.
A random sample was taken to determine whether students from a certain grade prefer to wear Brand A, Brand B, or Brand C tennis shoes. There were eleven students in the sample. Two students preferred Brand A, four students preferred Brand B, and five students preferred Brand C.
If there are eighty-eight students in the population, about how many of them would you expect to prefer Brand C?
16
32
55
40
Answer:
40
Step-by-step explanation:
you can multiply 88 by 5/11 to get 40
Sarah’s dog ran into the woods. While in the woods,Sarah’s dog picked up 3 sticks,2 rocks, and an amount of leaves. Write an algebraic expression
The woods, Sarah’s dog picked up 3 sticks, 2 rocks, and an amount of leaves. An algebraic expression for this is, 3 + 2 + x
What are expressions?An expression is a sentence with at least two numbers or variables having mathematical operation. Math operations can be addition, subtraction, multiplication, division.
For example, 2x+3
The total number of items that Sarah's dog picked up in the woods can be represented by the algebraic expression:
3 + 2 + x
where x represents the number of leaves the dog picked up.
The expression 3 + 2 + x represents the sum of the 3 sticks, 2 rocks, and the unknown number of leaves that the dog picked up.
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PLEASEEEE HELP ASAP
Solve for x. Round your answer to the nearest tenth.
The value for x is x= [tex]sin^{-1[/tex] (0.5425).
What is Trigonometry?The area of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six popular trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and acronyms (csc).
Given:
H= 25
B = 21
Using Pythagoras theorem
P = √H² - B²
P = √25² - 21²
P = √184
P = 2√46
Using Trigonometry
sin x = P / H
sin x = 2√46 / 25
x= [tex]sin^{-1[/tex] (0.5425)
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1 kilograms of pears cost as much as 1. 5 kilograms of apples. Alex paid $34. 20 for 4 kilograms of pears and 3 kilograms for apples. How much did 1 kilogram of pears cost?
The cost of 1 kilogram of pears is $5.70.
How determine the costThe cost of 1 kilogram of pears can be found by using the given information and setting up an equation. First, let's repeat the question: "1 kilogram of pears cost as much as 1.5 kilograms of apples. Alex paid $34.20 for 4 kilograms of pears and 3 kilograms for apples. How much did 1 kilogram of pears cost?"
Let's assign variables to the unknowns:
- P = cost of 1 kilogram of pears
- A = cost of 1 kilogram of apples
From the question, we know that:
- 1P = 1.5A - 4P + 3A = 34.20
Now, we can use substitution to solve for P.
1. Substitute 1.5A for P in the second equation: 4(1.5A) + 3A = 34.20
2. Simplify: 6A + 3A = 34.20
3. Combine like terms: 9A = 34.20
4. Solve for A: A = 34.20/9 A = 3.8
5. Substitute 3.8 for A in the first equation: 1P = 1.5(3.8)
6. Solve for P: P = 5.7
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