3 years ago

A cyclist travels 7 miles in 15 minutes. What is her average speed in mph? mph

Mathematics

1 answer:

tester [92]3 years ago

8 0

Answer:

28mph

Step-by-step explanation:

You might be interested in

A rectangle is 5cm longer that it is broad. It perimeter is 26cm. Find the length and breadth of the rectangle

Maslowich

I hope this helps you

length w+5

width w

26=2 (w+5+w)

13=2w+5

2w=8

w=4

length =4+5=9

3 0

3 years ago

I need help going through the steps of a problem please tell steps and not just answer

mezya [45]

Answer:

x = 5/7

Step-by-step explanation:

4 (0.25 - 2) = x - 0.75 (16 - 8x)

1 - 8 = x - 12 + 6x

1 - 8 + 12 = x + 6x

5 = 7x

5/7 = x

4 0

3 years ago

What is ( 3.1 x 10^5) ( 2.2 x 10^7) in scientific notation?

hjlf

Answer:

= 2.231 × 107

8 0

3 years ago

Pd). <br>cot x/sec x <br>show that -=cos ecx -sin x<br>

forsale [732]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

• cot x = $\frac{cosx}{sinx}$

• sec x = $\frac{1}{cosx}$ and cosec x = $\frac{1}{sinx}$

Consider the left side

$\frac{cotx}{secx}$

= $\frac{cosx}{sinx}$ × cosx

= $\frac{cos^2x}{sinx}$

= $\frac{1-sin^2x}{sinx}$

= $\frac{1}{sinx}$ - $\frac{sin^2x}{sinx}$

= cosec x - sin x

= right side ⇒ verified

6 0

3 years ago

The value of z varies inversely with the value of w. The constant of variation is 2. Which are possible values for z

serious [3.7K]

Answer: A C D

Step-by-step explanation:

7 0

3 years ago