Answer:
He does not divide the numerator and the denominator by the same number. Nicholas divides 20 by 5 and 30 by 6. He ought to have divided 30 by 5 as well and then simplified.
P.S. Nicholas should have just divided both 20 and 30 by 10 to simplify in one step
helpoooooooooooooooooooooo
Answer:
can you please tell me the chapter
Fourteen less than five times a number is three times the number.
Answer:
False
Step-by-step explanation:
Answer:
5x-14=3x
Step-by-step explanation:
Please answer sdjhsdfkds
What is the slope of the line that passes through the points (3,9) and (7,5)? Write
your answer in simplest form.
Answer:
M = -1
Step-by-step explanation:
Use the slope formula:
M = (y2-y1)/(x2-x1)
M = (5-9)/(7-3)
M = -1
The required slope for the lines -1.
Given that,
To determine the slope of the line that passes through points (3,9) and (7,5).
What is the slope of the line?The slope of the line is a tangent angle made by line with horizontal. i.e. m = tanx, where x is in degrees.
What is simplification?The process in computation to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
Here,
Slopes of the line can be given as,
m = [y₂ - y₁ ] / [x₂ - x₁]
for points, (3,9) and (7,5)
m = 5 - 9 / 7 - 3
m = -4 / 4
m = 1
Thus, the required slope for the lines is -1.
Learn more about slopes here:
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3.
Noel brings 15 cupcakes to share with her friends at lunch. She gives 13 to her friends
and 2 to her teachers.
Which equation represents this situation?
А.
15+(-13)+(-2) = 0
B.
15 +13 - 2 = 0
C.
15 +13 + 2 = 30
D.
15 - 13 +2=4
An angle between 0 and 2π that is coterminal with 960° is
Answer:
4 pi/3
Step-by-step explanation:
960 degrees in standard position is the same thing as 960-360 = 600 degrees in standard position because rotating the second line 360 degrees just brings it back to where it started.
Do it again to get 600 - 360 = 240
240 degrees would end up in the same spot as 600 degrees and 960 degrees, so they are all coterminal.
Convert 240 degrees to radians:
240 * pi/180 = 4pi/3.
Flat prats of solid figure
Answer:
the flat part of a solid figure is a face
BRAINLIEST
Discrete random variables Multiple select question. can have a finite or infinite number of values. have a set of distinct values. are countable. must have a clear upper limit.
A discrete random variables have some properties that includes:
have a finite or infinite number of valueshave a set of distinct valuesare countable. What is a Discrete random variables?A discrete random variables refers to variables that has either finite or a countable number of possible values.
Generally, a random variable is called continuous if its possible values contain a whole interval of numbers.
Therefore, the Option A , B and C is correct.
Read more about random variables
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Dean gets a tip of 15% on every meal she serves at the restaurant she works. Smith's bill was $10,300.00. How much tip did Dean get?
Answer:
Tip Total: $ 154,500.00
Total (Bill + Tip): $ 1,184,500.00
suppose you deposit $2000 in a savings account that pays interest at an annual rate of 5% if no money is added or withdrawn from the account how many years will it take for the account to contain $2500 and how many years will it take for the account to contain $3000
Answer:
$2500: 4.57 years$3000: 8.31 yearsStep-by-step explanation:
The time required for an account earning compound interest to achieve a particular balance is given by the formula ...
t = log(A/P)/(n·log(1 +r/n))
where principal P is compounded n times per year at annual rate r. A is the account balance after that time. For this problem, n=1.
__
a.Here, we have ...
P = $2000, A = $2500, r = 0.05, n = 1
The number of years is ...
t = log(2500/2000)/log(1.05) ≈ 4.57 . . . years
__
b.For A = $3000, this becomes ...
t = log(3000/2000)/log(1.05) ≈ 8.31 . . . years
Liz is 36 years old. Liz's age is 3 years older than two times Rylan's age. Let x represent Rylan's age. Which equation can be used to solve for Rylan's age?
if someone does answer, could you write out the steps? >.
Answer:
i hope this is what you are looking for
Step-by-step explanation:
liz is 36
rylan is 75
36*2 is 72
72+3 is 75
y= x (rylan's age)-3 /2
75-3=72
72/2
36
Which product is equivalent to -7 × 25?
Answer:
-175
Step-by-step explanation:
Answer:
-175
Step-by-step explanation:
Calculators are very useful, :).
At the airport, ten people are waiting on standby. two seats become available, one first class and one coach. how many ways are there to fill the two seats?
At the airport, ten people are waiting on standby. two seats become available, one first-class and one coach, There are 90 ways to fill the two seats.
It is given that there are ten people waiting on standby.
Two seats are available, One is first class and another one is coach.
It is required to find how many ways are there to fill the two seats.
What is permutation?A permutation can be defined as the number of ways a set can be arranged.
We have ten people and two seats in which only two people can seat out of ten.
It is a problem based on the permutation concept.
So for the first seat, there are 10 ways to fill the first seat
and for the second seat, there are [tex](10-1)[/tex] ways to fill the second seat.
If "P" is the number of ways we can assign the seats:
Then, P = 10×(10-1) = 10×9 = 90
Thus, there are 90 ways to fill the two seats.
Learn more about permutation here:
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Answer:
D. 90
Step-by-step explanation:
Have a good day!
hello please answer need for homework
Pls help!!
I really need it
12 meters equals how many kilometers?
Answer:
0.012
Step-by-step explanation:
Answer:
0.012km is the correct answer
HELP will give 50 pts. A group of friends wants to go to the amusement park. They have $197.75 to spend on parking and admission. Parking is $19, and tickets cost $35.75 per person, including tax. Write and solve an equation which can be used to determine xx, the number of people who can go to the amusement park.
i need to know the equation and the answer
To write the equation multiply the price per person by x( the number of people that can go) and add the price of parking to get the total cost:
equation: total = 35.75x + 19
to solve for x replace the total with 197.75 and solve for x:
197.75 = 35.75x + 19
Subtract 19 from both sides:
178.75 = 35.75x
Divide both sides by 35.75
X = 5
a total of 5 people can go.
Can someone PLEASE show me how to do this! If f (x) = x^2 + 3x +2/ x +3, then f’ (x) =
Answer:
c
Step-by-step explanation:
The equation =( denominater * derivative of numerator - numerator * derivative of denominator) / denominator ^2
so the qstn is (x^2 + 3x +2) / (x+3)
apply the values as the above eqtn states
ie,[ (x+3) * derivative of (x^2 +3x + 2)] - [( x^2 +3x + 2) *derivative of (x+3)] /
(x+3)^2
derivative of numerator, (x^2 +3x + 2) is 2x+3
" of denominator, (x+3) is 1
so we get
[(x+3)* (2x + 3 ) - (x^2 +3x + 2) *1 ] / (x+3)^2
open the brackets
[ 2x^2 + 3x + 6x + 9 - x^2 +3x + 2 ] / (x+3)^2
subtract similar terms and we get the final answer in option c
I don’t get what I’m supposed to do can someone explain?
Answer:
You will have to create a few models about how light and mechanical waves are absorbed and reflected through different substances. Then you will make two brief paragraphs... the first one explaining the similarities and differences of the light waves on the materials, the second will explain why the materials with their specific properties are suited for their specific functions.
Hope this helps! Please let me know if you need more help, or if you think my answer is incorrect. Brainliest would be MUCH appreciated. Have a wonderful day!
can you help me? please
Answer:
C, $769 per week
Step-by-step explanation:
There are 52 weeks in a year. To find the answer to this question, divide $40,000 by 52 to get $769.230769231, rounded to $769.
I need help please!!!!
Answer:
Step-by-step explanation: will u be my friend
Solve for x. 3/4x - 2=8
Answer:
Solve for [tex]x[/tex] by simplifying both sides of the equation, then isolating the variable.
Exact Form:
[tex]x = \frac{40}{3}[/tex]
Decimal Form:
[tex]x=13.3[/tex]
Mixed Number Form:
[tex]x=13\frac{1}{3}[/tex]
Thanks!
Mark me brainliest!
~FieryAnswererGT~
boy, have a great day!
A boy starts from a point A and walks 4 km due east to B. He then changes direction and walks 3 km due north to C. Find the distance of C from A.
Answer:
Distance C from A =5km
Step-by-step explanation:
use the Pythagoras theorem's
{AC}^{2} = {BC}^{2} + {AB}^{2}
AC=✓3^2 + 4^2
AC = ✓9+16
AC = ✓25
AC = 5 km
therefore, C from A = 5 km
The number of tickets sold each day for an upcoming performance is given by p(x) = -0.4x2 + 8.8x + 13, where x is the number of days since the concert was first announced. When will daily ticket sales peak and how many tickets will be sold that day?
Answer:
The maximum sale of the tickets is 158 on the [tex]11^{th}[/tex] day.
Step-by-step explanation:
The number of tickets sold each day, p(x), for an upcoming performance is
[tex]p(x)=-0.4x^2+8.8x+13[/tex]
where x is the number of days since the concert was first announced.
For peak sales, the point of maxima has to be determined.
So, differentiate the function of the number of tickets sold each day, p(x), with respect to the number of days, x, and equate it to zero to get the extremum point (maxima or minima), i.e.
[tex]\frac {p(x)}{dx}=0[/tex]
[tex]\Rightarrow -0.8x+8.8=0[/tex]
[tex]\Rightarrow x=\frac{8.8}{0.8}=11[/tex]
Now, check the sign of the second derivative at x=11, to ensure the obtained point is corresponding to the maxima or minima,
[tex]\frac {p^2(x)}{dx^2}=-0.8[/tex]
As the second derivative is negative, so x=11 is the point corresponding to maxima.
Hence, on the [tex]11^{th}[/tex] day the daily ticket sales will be at the peak.
Putting x=11 in the function p(x) to get the number of tickets sold that day.
[tex]p(x=11)= -0.4(11)^2+8.8(11)+13[/tex]
[tex]\Rightarrow 158.2.[/tex]
The number of tickets should be an integer, the obtained peak value is 158.2 so the higher integral value is not possible but the lower integral value is possible.
So, the maximum sale of the tickets is 158 on the [tex]11^{th}[/tex] day.
An arch over an apartment entrance is 3 feet high and 9 feet wide. Find the radius of the circle containing the arc of the arch.
Answer:
13.5
Step-by-step explanation:
When finding radius you would divide the diameter by 2, and the diameter is (3 times 9) 27. Thus 27 divided by 2 = 13.5
Hope this helps :D
1. Solve for x
if u help I'll give brain thing
Answer:
13
Step-by-step explanation:
Assuming that this is a right triangle, we can use the Pythagorean theorem.
[tex](length-of-leg-1)^2+(length-of-leg-2)^2 = (length-of-hypotenuse)^2\\15^2 + x^2 = (\sqrt{394} )^2\\225 + x^2 = 394\\x^2 = 169\\x = 13[/tex]
Hope that helped!
If three equal subdivisions of [0,3] are used, what is the Trapezoidal Rule approximation of
The trapezoidal rule is simply a rule that's used in the approximation of a definite integral.
What is a trapezoidal rule?Your information is incomplete as the details aren't complete. Therefore, an overview will be given.
In this case, the trapezoidal rule is simply a rule that's used in the approximation of a definite integral.
It simply evaluates the area under the curve by dividing the total area into smaller trapezoids rather than using rectangles.
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The American Heritage Center at the University of Wyoming is a conical building. If the height is 77 feet, and the area of the base is about 38,000 square feet, find the volume of air that the heating and cooling systems would have to accommodate.
Remember the formulas
Volume of a cylinder = πr^2h
Volume of a cone = πr^2h/3
Volume of a circle = πr^2
Volume of a sphere = (4/3)πr^3
The volume of the cone is 35069.35ft^3 which is equivalent to the air the heating and cooling system would accommodate
Data;
Height = 77 feetArea = 38,000 ft^2Volume of a Cone = ?Volume of a ConeThe shape of a cone has a spherical base. From the given data, we can find radius of the sphere from this.
[tex]A = \frac{4}{3}\pi r^3\\38000 = \frac{4}{3}* 3.14 * r^3\\4.186r^3 = 38000\\r^3 = \frac{38000}{4.186} \\r^3 = 9077.878\\r = \sqrt[3]{9077.878} \\r = 20.86ft[/tex]
The volume of a cone is given as
[tex]v=\frac{1}{3} \pi r^2 h\\v = \frac{1}{3} * 3.14 * 20.86^2 * 77\\v = 35069.35ft^3[/tex]
The volume of the cone is 35069.35ft^3
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Use the vertical method
Answer:
(b) 4a³
Step-by-step explanation:
The value of B is the sum of the a-cubed terms:
12a³ -6a³ -2a³ = (12 -6 -2)a³ = 4a³ . . . . . matches the 2nd choice
__
Additional comment
A = (-2a)(-2a) = 4a²
I’ll give Brainly…!!!!
Answer:
AA
Step-by-step explanation:
ΔCSR and ΔMDR share ∠CRS
Since lines [tex]n[/tex] and [tex]k[/tex] are parallel, ∠C ≅ ∠M and ∠S ≅ ∠D. These are corresponding angles.
Either of these sets of angles could be used along with ∠CSR to prove that ΔCSR and ΔMDR are similar because of AA.