3 years ago

A runner covers 55 yards in 5.5 seconds. Find the runner's average speed in miles per hour.

1 answer:

7 0

$V=\frac{s}{t},where\ V-speed,\ s-distence\ ,t-time\\\\V=\frac{55y}{5,5s}=10\frac{y}{s}=10\frac{0,000568m}{\frac{1}{3600}h}=\frac{0,00568m}{\frac{1}{3600}h}=0,00568\cdot3600\frac{m}{h}=\\\\=20,448\frac{m}{h}$

You might be interested in

A rectangular whiteboard has an area of x^2-12x-45. Which expression could

Firdavs [7]

Answer: I Think it is b

Step-by-step explanation:

4 0

2 years ago

Need helppp hurry please i only have 1 check answer

Angelina_Jolie [31]

Answer: 1

Step-by-step explanation: 3z+6 you subtract 6 from each side which gives u 3z=3 then u divide so 3 divide by 3 is one or just z

8 0

1 year ago

For f(x)=-x^2-2x-2, find f(x+h)-f(x)/h

lyudmila [28]

see the both photos for answer

4 0

2 years ago

What is the solution to 3 + 4e^x+1 = 11?

Alexandra [31]

What is the solution to 3 + 4e^x+1 = 11?

Solution:

$3+4e^{x+1}=11$

To solve for x, Let us subtract 3 from both sides

$3+4e^{x+1}-3=11-3$

$0+4e^{x+1}=8$

$4e^{x+1}=8$

Let us divide by 4 on both sides

$\frac{4e^{x+1}}{4} =\frac{8}{4}$

$\frac{1e^{x+1}}{1} =\frac{2}{1}$

$e^{x+1} =2$

Let us take ln on both sides

$ln (e^{x+1}) =ln(2)$

So, x+1=ln(2)

To solve for x, Let us subtract 1 from both sides

x+1-1=ln(2) -1

x+0=ln(2)-1

x= ln(2) -1

Answer: Option (A)

x=ln(2)-1

8 0

2 years ago

Read 2 more answers

Plz help im almost done just a few more hw questions I'm stuck on

sesenic [268]

The third one should be -2(2x-6)=12-4x
Last one should be 2(2x-6)+4x=8x-12

8 0

2 years ago