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3 years ago

David can run 4 miles in 75 minutes .what is Davides jogging rate per hour ?

Mathematics

1 answer:

Nina [5.8K]3 years ago

4 0

Answer:

3.2 miles per hour

Step-by-step explanation:

Time=75 minutes=75/60=5/4=1.25 hours

Speed=Distance/time=4/1.25=3.2 miles per hour

David's jogging rate is 3.2 miles per hour.

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Elina [12.6K]

They have the same volume, so it's not a or d, but the surface area of a is 104, and the surface area of b is 94, so the answer is B.
Hope i helped! i also have this question in k12.<span />

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3 years ago

Which of the following employees derives their income from a fee for the items sold?

dezoksy [38]

Answer:

commission

Step-by-step explanation:

3 0

3 years ago

What is 30/25 as a percentage?

netineya [11]

Answer:

120%

Convert fraction (ratio) 30 / 25 Answer: 120%

3 0

3 years ago

Read 2 more answers

Write a polynomial function in standard form with zeros at −3, −1, and 1.

Annette [7]

Answer:

$f(x) = {x}^{3} + 3 {x}^{2} - x -3$

Step-by-step explanation:

The given polynomial has zeros at:

x=−3, x=−1, and x=1.

This means that:

x+3, x+1, and x-1 are all factors of this polynomial.

The factored form of this polynomial is :

$f(x) = (x + 3)(x + 1)(x - 1)$

We expand the last two factors using difference of two squares.

$f(x) = (x + 3)( {x}^{2} - 1)$

$f(x) = x ( {x}^{2} - 1) + 3( {x}^{2} - 1)$

$f(x) = {x}^{3} - x+ 3 {x}^{2} -3$

$f(x) = {x}^{3} + 3 {x}^{2} - x -3$

This is the standard form because it is now in decreasing powers of x.

8 0

3 years ago

Find the slope of the line that passes through each pair of points

lyudmila [28]

Answer:

-1

Step-by-step explanation:

The slope of the line can be found by

m = (y2-y1)/(x2-x1)

= (-2-1)/(1--2)

=-3 /(1+2)

=-3/3

-1

3 0

3 years ago