2 years ago

Sarah runs at a rate of 8 miles per hour what is her speed at feet per second

Mathematics

1 answer:

LekaFEV [45]2 years ago

4 0

Answer:

i worked some of it out

Step-by-step explanation:

1 mile = 5,280ft

1 hour = 8 miles

30 min = 4 miles

15min = 2 miles

7.5 (7min and 30 sec) = 1 mile

3.75(225 sec) =1/2 mile = 2,640ft

0.25(quarter of a mile) = 1,320ft

i just completely lost myself but if this helps then great! sorry if i wasted your time

You might be interested in

What is the measure of EFG in 0 0 below?

const2013 [10]

Answer:

C. 300

Step-by-step explanation:

EFG and EG is the total distance around the circle

EFG + EG = 360 degrees

EFG + 60 = 360

Subtract 60 from each side

EFG +60-60 = 360-60

EFG = 300

5 0

2 years ago

Read 2 more answers

What digit is in the tenths place in this number? 904.18

Y_Kistochka [10]

Hundreds - 9
Tens - 0
Ones - 4
Decimal point - .
Tenths - 1
Hundredths - 8

Hope this helped!

6 0

2 years ago

Maths Questions box 51.The function f: R→ R is twice differentiable and for any x ER we have g(x) = f(4-x²), if f'(1) = -5 and f

mrs_skeptik [129]

By the chain rule,

$g(x) = f(4 - x^2) \\\\ \implies g'(x) = -2x f'(4 - x^2) \\\\ \implies g''(x) = -2 f'(4 - x^2) + 4x^2 f''(4 - x^2)$

Observe that

$4 - x^2 = 1 \implies x^2 = 3 \implies x = \pm\sqrt3$

Then

$g''(\sqrt3) = -2 f'(1) + 4\left(\sqrt3\right)^2 f''(1) = -2(-5) + 4(3)(-1) = \boxed{-2}$

5 0

1 year ago

3) Write an equation in point-slope form for the line that passes through

ololo11 [35]

Answer:

y = 1/2x - 2

Step-by-step explanation:

Slope: 1/2

Point: (0, -2)

y-intercept: -2 - (1/2)(0) = -2

4 0

2 years ago

use the intermediate value theorem to determine, if possible, whether g(x)=2x^3+3x^2-3x+4 has a real zero between -2 and -1

inn [45]

Answer:

Step-by-step explanation:

g(-2)=2(-2)^3+3(-2)^2-3(-2)+4=-16+12+6+4=6

g(-1)=2(-1)^3+3(-1)^2-3(-1)+4=-2+3+3+4=8

it does not change sign ,so there is no real zero between -2 and -1.

3 0

2 years ago