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emmainna [20.7K]

3 years ago

11

Johnny starts run at the 2 mile mark and runs 4 miles per hour. Javier starts at the 6 mile mark and runs 2 miles per hour. How

long until Johnny catches up with Javier?

1 answer:

Galina-37 [17]3 years ago

7 0

Answer:

2 hours

Step-by-step explanation:

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PLEASE HELP A rectangular region is removed from another rectangular region to create the shaded region shown below. Find the ar

Mars2501 [29]

<h3>Answer: shaded region has area 107 square feet</h3>

================================================

Work Shown:

A = area of larger rectangle

A = length*width = 9*15 = 135 square feet

B = area of smaller rectangle

B = length*width = 7*4 = 28 square feet

C = area of shaded region

C = difference in areas of A and B

C = A - B = 135 - 28 = 107 square feet

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4 years ago

How to Solve for x. -1/2 (x + 2) + 1 1/2 x = 3

kondaur [170]

Hope this helps :)))

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2 years ago

Solve. x2 + 14 = 9x A) x = 2, x = 7 B) x = 3, x = 5 C) x = −2, x = −7 D) x = −3, x = −5

chubhunter [2.5K]

Answer:

A) x = 2, x = 7

Step-by-step explanation:

x^2 + 14 = 9x

Subtract 9x from each side

x^2-9x + 14 = 9x-9x

x^2-9x + 14 = 0

What 2 numbers multiply to 14 and add to -9

-7*-2 = 14

-7+-2 = -9

(x-7)(x-2) = 0

Using the zero product property

x-7 = 0 x-2 =0

x=7 x=2

7 0

3 years ago

Please help! 12 points

Ivahew [28]

Answer:

Step-by-step explanation:

sin2x = 2sinx*cosx

= $2\sqrt{sin^{2}x }$ * cosx

= $2\sqrt{(1-cos^{2}x }$ * cosx

= 2 $\sqrt{1-\frac{3}{5} ^{2} } *\frac{3}{5}$

= $\frac{8}{5} * \frac{3}{5}$

= 24/25

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3 years ago

Why can't you use the product of powers rule to simplify<br> this expression? Explain.<br> 3^4.2^8

Tema [17]

Answer:

Because the base of this expression is not same.

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4 years ago