BornAdopted21

BornAdopted21

22.04.2020 •

Mathematics

I need to find the mean, median,mode, and range of 8,6,7,6,5,4 1/2, 7 1/2, 6 1/2, 8 1/2, 10,7,5, 5 1/2, 8,9, 7,5,6, 8 1/2, and 6

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Ответ:

que40

04.06.2020

Part 1) $\frac{\sqrt{2}}{2}\ sec$ or $0.7\ sec$

Part 2) The side length of each piece Trinette used to make the pillow covers is 30 in

Part 3) Elton's hourly wage is $\$6.50$

Step-by-step explanation:

Part 1)

Let

x------> the time in seconds

we have

$f(x)=-16x^{2}+c$

In this problem the initial height is 8 ft

so

$f(x)=-16x^{2}+8$

To find how long does it take the apple to reach the ground, equate the function to zero and solve for x

$0=-16x^{2}+8$

$16x^{2}=8$

$x^{2}=1/2$

$x=\frac{\sqrt{2}}{2}\ sec$

$x=0.7\ sec$

Part 2)

step 1

The area of a square tablecloth is

$A=3,600\ in^{2}$

Divided by 4

$3,600/4=900\ in^{2}$

step 2

Find the length of each piece

$A=b^{2}$

so

$900=b^{2}$

b=30 in

Part 3)

we know that

$2x^{2} =84.50$

solve for x

$x^{2} =42.25$

$x=\sqrt{42.25}$

$x=\$6.50$

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