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Afina-wow [57]
3 years ago
15

What does it mean to say that two variables are directly proportional?

Mathematics
1 answer:
ale4655 [162]3 years ago
4 0
It's means it can be directly broken up into proportions , as the question implies
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F(x)=x^2+3; g(x)=x+4<br> find (fog)(-2)
AnnyKZ [126]
(Fog) = f(g(x))
g(-2)=-2+4=2
f(2)=2^2 +3 = 4+3 =7
5 0
3 years ago
The distance between Bay Town and Oak Glen is 175 miles. If the equation y = -x +175 represents the distance left to travel to O
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My answer is isn't on the choices and I can't show you how I got it. My answer is in the attached files.

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2 years ago
In how many ways can 4 people sit next to each other in a movie theater row? [?] question 4 options:
emmainna [20.7K]
Any of the 4 people can take the first seat
since it gets occupied by one person , the next seat can be occupied by any of the remaining 3
similarly, the next one has 2 possibilities and the last seat can only be occupied by the man who is left

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3 0
3 years ago
What's the volume? <br><br><br> I honestly just need the formula.
Arturiano [62]

Answer:

v=364.5\ m^3

Step-by-step explanation:

<u>Volume Of A Regular Solid</u>

When a solid has a constant cross-section, the volume can be found by multiplying the area of the base by the height. The area of a trapezium is

\displaystyle A_t=\frac{b_1+b_2}{2}h

where b_1 and b_2 are the lengths of the parallel sides and h the distance between them.

The figure shows a solid with a trapezoid as the constant cross-section and a height x. The volume of the solid is

\displaystyle v=A_t\ x

\displaystyle v=\frac{b_1+b_2}{2}\ h\ x

The image doesn't explicitly say if the length of 4.5 is the height of the trapezium or the length of that side. We'll assume the first, so our data is:

\displaystyle b_1=7m,\ b_2=11m,\ h=4.5m,\ x=9m

We now compute the volume

\displaystyle v=\frac{7+11}{2}.(4.5)(9)=364.5

\boxed{\displaystyle v=364.5\ m^3}

8 0
3 years ago
24. Which of the following trigonometric expressions is NOT equivalent?
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Tan t /(sec t -cos t)= sin t/(cos t *(1/cos t -cos t))
=sin t/(cos t*(1-cos ²t)/cos t))
=sin t/sin² t=1/sin t [or=cosec t.]
8 0
3 years ago
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