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ExtremeBDS [4]
2 years ago
13

The chorus has 42 members. Which expression represents the number of ways a group of 7 members can be chosen to do a special per

formance?
42 x 7

42!/7!35!

42!/35!

plz help
Mathematics
1 answer:
Elanso [62]2 years ago
6 0
42!/7!35! Is the answer you’re looking for
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Vivi is 40 floors from the top of her building. If she starts at the bottom and runs up 5 floors every 20 seconds, how far is sh
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Answer:

17 floors

Step-by-step explanation:

1 floor every 4 seconds.

90/4 = 22.5

40 - 22.5 = 17.5

17.5 is 17ish floors, and is the only answer that is close to 17 floors.

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3 years ago
There is a bag filled with 3 blue, 4 red and 5 green marbles.
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Answer:1/12

Step-by-step explanation:

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The equation to find out the volume in this case is V=x*x*2x, or V=2x^3. Use this we can get that the volumes would be 16, 54, 128, and 250.
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Look online for the growth of the trunk of a tree. Estimate how much time does it take for a water oak to grow one inch in diame
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Answer:

Explained

Step-by-step explanation:

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Water oak gains 24 inches in height  every year and  1.5 inch growth in diameter annually, meaning if we divide 1.5 inches by 12 months we gets 0.125 inches growth monthly. So a water oak tree needs only 8 months to grow 1 inch in diameter.

4 0
3 years ago
The table below shows selected points from a function.
FrozenT [24]

Answer:

<em>True </em>

Step-by-step explanation:

<em>Rate Of Change Of Functions </em>

Given a function y=f(x), the rate of change of f can be computed as the slope of the tangent line in a specific point (by using derivatives), or an approximation by computing the slope of a secant line between two points (a,b) (c,d) that belong to the function. The slope can be calculated with the formula

\displaystyle m=\frac{d-b}{c-a}

If this value is calculated with any pair of points and it always results in the same, then the function is linear. If they are different, the function is non-linear.

Let's take the first two points from the table (1,1)(2,4)

\displaystyle m=\frac{4-1}{2-1}=3

Now, we use the second and the third point (2,4) (3,9)

\displaystyle m=\frac{9-4}{3-2}=5

This difference in values of the slope is enough to state the function is non-linear

Answer: True

6 0
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