-4(1.75+x)=18. ;;;;;;;;;;;;;;;;

Answer:

C ( -1, 1)

Step-by-step explanation:

(5+x)/2= 2

x = -1

(-3+y)/2= -1

y= 1

a) The compound interest rate is 75%

b) The simple interest rate is 12.5%

What is the interest?

We know that the interest is the money that accrues to an investment that have been made. We know that we can be able to determine the simple interest by the use of the formula.

A = P(1 + r/n)^nt

A = amount

P = principal

r = rate

n = Number of times compounded

Then we have;

2(1000) = 1000(1 + r)^8

Where n = 1

2 =  (1 + r)^8

0.693 = 8 ln(1 + r)

e^0.693/8= (1 + r)

r = 1 - e^0.693/8

r = 0.75 or 75%

For the simple interest rate;

I = PRT/100

I = A - P

I = 2000 - 1000 = 1000

1000 = 1000 * R * 8/100

R = 1 * 100/8

R = 12.5%

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Answer:

The discriminant of a quadratic equation ax² + bx + c = 0, is the value of b² - 4ac.

Given the equation 2x² + 6x + 3 = 0, the discriminant is:

b² - 4ac = (6)² - 4(2)(3) = 36 - 24 = 12

So the discriminant is 12.

Step-by-step explanation:

Answer: It is not clear what you are asking for when you say "fifth formula". There are many formulas in mathematics, and it could be referring to different things in different context.

Formulas can be found in different branches of mathematics and science, such as geometry, algebra, physics, chemistry, etc. Can you please provide more context or specify what area of mathematics or science you are interested in?

It is important to note that any formula needs to be referenced in order to understand what it represents and how to use it.

Step-by-step explanation:

Jerry has been doing it-up for number of 10 days , not counting the first day.

n + 14 = 33

n = 19 days

We know that Jerry did 15 it-up on the first day and 33 it-up today. Therefore, we can subtract 15 from 33 to get the total number of it-up that Jerry did over the past few days.

33 - 15 = 18e

We know that Jerry did 2 more it-up each day, so we can divide 18 by 2 to get the number of days.

18 / 2 = 9

Finally, we need to add 1 to the result to account for the first day.

9 + 1 = 10 days

Jerry has been doing it-up for 10 days, not counting the first day.

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Answer:

h = 3[tex]\sqrt{2}[/tex]

Step-by-step explanation:

using Pythagoras' identity in the right triangle.

the square on the hypotenuse is equal to the sum of the squares on the other 2 legs.

let h represent the hypotenuse , then

h² = 3² + 3² = 9 + 9 = 18 ( take square root of both sides )

h = [tex]\sqrt{18}[/tex] = [tex]\sqrt{9(2)}[/tex] = [tex]\sqrt{9}[/tex] × [tex]\sqrt{2}[/tex] = 3[tex]\sqrt{2}[/tex] ← exact value

or h ≈ 4.24 ( to 2 decimal places )

The correct group is 3rd. (Option C)

The groups of numbers that are ordered correctly from least to greatest are :

-13,−16,12,1

-110,0.2,310,14

-112,−0.75,−0.25,112

The first group has -13, -16, 12 and 1. -13 and -16 are the smallest numbers and 1 is the largest, so it is ordered incorrectly from least to greatest.

The second group has -110,0.2,310,14 and -110 is the smallest number and 310 is the largest, so it is ordered incorrectly from least to greatest.

The third group has -112, -0.75, -0.25 and 112. -112 is the smallest number and 112 is the largest, so it is ordered correctly from least to greatest.

The last group has -8,-34,-3,14 and -34 is the smallest number and 14 is the largest, so it is not ordered incorrectly from least to greatest.

Therefore, the correct group is 3rd. (Option C)

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The horizontal line test is a method used in mathematics to determine if a given function is one-to-one. A function is one-to-one if for every unique x-value, there is a unique y-value.

The horizontal line test is used to determine if a function is one-to-one by drawing a horizontal line through the graph of the function and seeing if the line intersects the graph at most once.

The horizontal line test is based on the idea that if a horizontal line intersects the graph of a function more than once, then there must be at least one pair of x-values that correspond to the same y-value.

This means that the function is not one-to-one and therefore, not invertible. A function that is not invertible is not a function in strict mathematical sense.

It's important to note that the horizontal line test can only be applied to functions that are defined on a closed interval or on all real numbers.

Also, It is only a sufficient condition, meaning that a function that passes the horizontal line test is one-to-one, but not all one-to-one function pass the horizontal line test.

In conclusion, the horizontal line test is a method used to determine if a given function is one-to-one by drawing a horizontal line through the graph of the function and seeing if the line intersects the graph at most once.

If it does, the function is one-to-one, if not, the function is not one-to-one and therefore not invertible. The test is only sufficient and should be used with caution.

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The standard form of the linear function in this problem is given as follows:

-4x + 5y = -25.

The linear function for this problem is defined in point-slope form as follows:

y + 1 = 4/5(x - 5).

To convert to standard form, we leave the coefficients of x and y on the left side and the constant on the right side, hence:

y + 1 = 4x/5 - 4.

-4x/5 + y = -5.

Multiplying everything by 5, we have that:

-4x + 5y = -25.

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Answer:

Simply add apple and grape together you get 10, and orange is 14, so 14 - 10 = 4, answer is a

Step-by-step explanation:

It is possible to construct a triangle whose sides are 2 cm 3 cm and 4.5 cm because the sum of two sides are smaller than third sides.

In the given question, we have to check that it is possible to construct a triangle whose sides are 2 cm 3 cm and 4.5 cm.

To check whether the given sides can make a triangle or not, we have to check that the sum of two sides always greater than the third side.

To check this we firstly add the 2 and 3

2 + 3 > 4.5

5 > 4.5

Now we add 2 and 4.5

2 + 4.5 > 3

6.5 > 3

Now we add 3 and 4.5

3 + 4.5 > 2

7.5 > 2

It is possible to construct a triangle whose sides are 2 cm 3 cm and 4.5 cm because the sum of two sides are smaller than third sides.

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Answer: To calculate the percent decrease of water in the tank, we can use the following formula:

Percent decrease = (Initial value - Final value) / Initial value x 100%

In this case, the initial value of water in the tank is 5 inches and the final value is 3 inches. So, the percent decrease is:

(5 - 3) / 5 x 100% = 2 / 5 x 100% = 40%

So, the percent decrease of water in the tank is 40%.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

calculate m using the slope formula

m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]

with (x₁, y₁ ) = (- 1, 0) and (x₂, y₂ ) = (0, - 3) ← 2 points on the line

m = [tex]\frac{-3-0}{0-(-1)}[/tex] = [tex]\frac{-3}{0+1}[/tex] = [tex]\frac{-3}{1}[/tex] = - 3

the line crosses the y- axis at (0, - 3 ) ⇒ c = - 3

y = - 3x - 3 ← equation of line

Answer: It would be 29.01

The length of the rectangle is 28 feet, and the width is 58 feet.

We know that for a rectangle of length L and width W, the perimeter can be written as:

P = 2*(L + W)

Here we know that the perimeter is 172 ft, then we can write:

172 ft = 2*(L + W)

And we know that the length is an integer:

L = x

And the width is two times the next integer:

W = 2*(x + 1)

Then we can replace these two in the perimeter equation so we get:

172 = 2*(x + 2*(x + 1))

172 = 2*(x + 2x + 2)

172 = 6x + 4

172 - 4 = 6x

168 = 6x

168/6 = x

28 = x

So we have:

Length = x = 28 ft

Width = 2*(x + 1) = 2*(29) ft = 58ft

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The the length and width  of the rectangle are 43 feet and 129 feet

Perimeter is the distance round an object,  The rectangle is a polygon that has four sides and some of its angles is equal to 360 degrees

The given parameters that will help us to find the values of the length and width of the rectangle are

Perimeter = 172

The length is an integer = 2

The width is 2 times the next consecutive integer = 2(3) = 6

The ratio of the sides of the rectangle is

W = 2/8 *172 = 43

Length = 6/8*172 = 129

Therefore length and the width of the rectangle are 43 feet and 129 feet

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Reflect the X-axis at the position (0, 3): ( 0 , - 3 ) , Reverse the y-axis at the position (0, 3): ( 0 , 3 )

In order to determine a point's coordinates in a coordinate system, you must do the opposite. Start at the point and move in a vertical line in either an upwards or downwards direction to the x-axis. Here is the x-coordinate for you. Next, repeat the process while following a horizontal line to determine the y-coordinate.

A group of values that exhibit precise positioning On graphs, it is typically represented by a pair of numbers: the first number indicates the length along, while the second number indicates the length up or down. The point (12,5), for instance, is 12 units down and 5 units up. a pair of numbers that use the separations between the two reference axes to define the location of a point on a coordinate plane.

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A solution is a homogeneous mixture of two or more components in which the size of particle is smaller than 1 nm.

Normal examples of solutions are sugar in water and salt in water solutions, soda water, etc. In a solution, all the components emerge as a single phase. There is particle similarity i.e., particles are evenly allocated.

This is why a whole bottle of soft drink has the same flavors throughout.

Following are the property of solution:

1. It is a homogeneous mixture.

2. Its particles are too small and have a diameter of less than 1 nm.

3. Particles do not scatter a beam of light passing through it and so, the path of the light is not visible.

4. Solutes are indissoluble from the mixture and do not sediment.

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The distribution of the data is skewed right, which means that the data is not evenly distributed across the range of values.

To calculate the skewness, we can use the formula Skewness = (Mean - Mode) / Standard Deviation. In this case, the mean is 599.2 seconds, the mode is 590 seconds, and the standard deviation is 110.88 seconds. Plugging these values into the formula, we get Skewness = (599.2 - 590) / 110.88 = 0.8094. This indicates that the data is skewed right, as the skewness is greater than 0. A right-skewed distribution typically occurs when the majority of data points are closer to the minimum value, while there are fewer data points near the maximum value. This can be seen in the graphical summary, where the majority of the data points are clustered around the lower end of the range and the tail extends to the right.

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Answer:One minute let me find a answer

Step-by-step explanation:

Answer: The measure of each interior angle of a regular octagon can be found using the formula:

(n-2) x 180 / n

Where n is the number of sides in the polygon.

For Octagon, n=8

So we can substitute 8 for n in the formula:

(8-2) x 180 / 8 = 6 x 180 / 8

Therefore, each interior angle of the base of Octagon Towers measures 135 degrees.

Step-by-step explanation:

Answer:

a) Reflexive Property => 7
b) Angle Congruence Postulate => 8
c) Definition of Supplementary => 4
d) Segment Addition Postulate => 5
e) Definition of Right Angle => 6
f) Symmetric Property => 11
g) Substitution Property of Equality => 2
h) Definition of Complementary => 1  
i) Segment Congruence Postulate => 9
j) Angle Addition Postulate => 3
k) Linear Pair Postulate (maybe 10)

Step-by-step explanation:

Hope this helps and sorry for taking so long!

Hello there!

Answer:

15

Step-by-step explanation:

According to Exterior Angle Theorem for ∠С in ∆ ABC:

∠BAC + ∠ABC = ∠ACD

(5y + 3)° + (4y + 8)° = 146°

5y + 3 + 4y + 8 = 146

9y + 11 = 146

9y + 11 - 11 = 146 - 11

9y = 135

y = 15

Answer:

56 chickens or 112 legs

Answer:

10x

Step-by-step explanation:

Answer: The slop is -2 and the y-intercept is (0,4/5)

Step-by-step explanation:

Here is the graph, I hope this helps, have a great school day! :D

The four methods to solve quadratic equations are factorising, quadratic formula, graphing and completing the square.

Factorising is nothing but the method of equating the given equation to zero.

Quadratic formula method is by placing the coefficients of the given quadratic equation into the formula and obtaining the solutions.

Completing the square method is when a quadratic equation has a square term. We would once more have a linear equation if we could place two square terms on either side of the quality sign.

We can find the solution of a quadratic equation using a graph. Rearrange the equation so that one side corresponds to the graphed function. Plot this function and write y = the other side of the equation. To obtain the answers, draw vertical lines from the intersection spots down to the x-axis.

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Answer:

what is the question

Step-by-step explanation:

Answer:

x > -20/7

Step-by-step explanation:

[tex]\frac{2x-4+5x}{8} > -3[/tex]

multiply both sides by 8 to remove the denominator

2x-4+5x > -24

7x - 4 > -24

add 4 to both sides to isolate the variable and its coefficient

7x > -20

divide both sides by 7 to isolate x

x > -20/7

[tex]\huge\text{Hey there!}[/tex]

[tex]\mathsf{\dfrac{2x - 4 + 5x}{8} > -3}[/tex]

[tex]\mathsf{= \dfrac{7}{8}x - \dfrac{1}{2} > -3}[/tex]

[tex]\text{Add } \rm{\dfrac{1}{2}\text{ to both sides of the equation}[/tex]

[tex]\mathsf{\dfrac{7}{8}x - \dfrac{1}{2} + \dfrac{1}{2} > -3 + \dfrac{1}{2}}[/tex]

[tex]\text{Simplify it}[/tex]

[tex]\mathsf{\dfrac{7}{8}x > -3 + \dfrac{1}{2}}[/tex]

[tex]\mathsf{\dfrac{7}{8}x > - \dfrac{5}{2}}[/tex]

[tex]\text{Multiply }\rm{\dfrac{8}{7}\text{ to both sides of the equation}[/tex]

[tex]\mathsf{\dfrac{8}{7}\times\dfrac{7}{8}x > \dfrac{8}{7} \times - \dfrac{5}{2}}[/tex]

[tex]\text{Simplify it}[/tex]

[tex]\mathsf{x > \dfrac{8}{7}\times -\dfrac{5}{2}}[/tex]

[tex]\mathsf{x > \dfrac{8\times -5}{7\times 2}}[/tex]

[tex]\mathsf{x > \dfrac{-40}{14}}[/tex]

[tex]\mathsf{x > \dfrac{-40\div 2}{14\div2}}[/tex]

[tex]\mathsf{x > -\dfrac{20}{7}}[/tex]

[tex]\mathsf{x > -2 \dfrac{6}{7}}[/tex]

[tex]\huge\text{Therefore, your answer should be:}[/tex]

[tex]\huge\boxed{\mathsf{x > -\dfrac{20}{7} \ or \ \mathsf{x > -2 \dfrac{6}{7}}}}\huge\checkmark[/tex]

[tex]\textsf{It is an o.p.e.n circle shaded to the right}[/tex]

[tex]\huge\text{Good luck on your assignment \& enjoy your day!}[/tex]

Answer:

16 school buses

Step-by-step explanation:

400,000/25,000 = 16

25,000*16 = 400,000

The equation that represent the situation is 16.25 = 50 - 6.75x.

The number of sandwich bought by the customer is 5.

A roast beef sandwich costs $6.75. A customer buys multiple roast beef sandwiches.  Let x represent the number of roast beef sandwiches.

Then we will find the  how many sandwiches the customer buys when the amount Used for Payment is $50 and change received is $16.25.

Therefore, using equation,

16.25 = 50 - 6.75x

where

Therefore, let's find the number of sandwich bought using the equation.

16.25 = 50 - 6.75x

16.25 - 50 =  - 6.75x

-33.75 = -6.75x

divide both sides by -6.75

x = -33.75 / -6.75

x = 5

Hence,

number of roasted beef sandwich bought = 5

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