3 years ago

Answer this question to get marked as brainliest!!!!

Mathematics

1 answer:

Mazyrski [523]3 years ago

4 0

Answer: C

Step-by-step explanation:

A= 1/2(a+b)xh

A=1/2(7+10)x5

A=8.5x5

A=42.5

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I need help with both questions on the screen. if you can only answer one thats fine too!

meriva

Answer:

11. $b = 30$

Step-by-step explanation:

$a^{2} + b^{2} = c^{2}$

Substitute

$16^{2} + b^{2} = 34^{2}$

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$b^2 = 1156-256\\b^2 = 900$

$b = \sqrt{900}$

$b = 30$

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A painter is painting a rectangular wall that measures 23.6 ft by 19.2 ft. Each gallon can of paint covers 200 square feet. What

ludmilkaskok [199]

Answer:

3 gallons

Step-by-step explanation:

Length of the rectangular wall = 23.6 feet

Width of the rectangular wall = 19.2 feet

Surface area of the wall = 23.6 × 19.2

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∴ 1 square feet of the wall will be covered by the amount of paint = $\frac{1}{200}$ gallons

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Therefore, minimum 3 gallons will be required to paint the wall.

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3 years ago