3 years ago

What is the value of y in the equation, 4(2y+1)=2(y-13)

Mathematics

1 answer:

Alik [6]3 years ago

4 0

I hope this helps you

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Using the variable x for unknown number what is five more than the quotient of a number and 6 equals 7

Kitty [74]

Answer:

x = 12

Step-by-step explanation:

"Using the variable x for unknown number what is five more than the quotient of a number and 6 equals 7" translates into 5 + x/6 = 7.

To solve use inverse operations.

$5 + \frac{x}{6} = 7\\\\\frac{x}{6} = 2 \\\\ x = 12$

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3 years ago

What is the area of the semicircle (use 3.14 for p)?<br> Please help! Will mark brainlyest.

Marizza181 [45]

Answer:

127.17 cm²

Step-by-step explanation:

Area of a semicircle: 1/2*π*r²
π (pi) = 3.14
r (radius) = d (diamater) / 2 => 18/2 = 9 cm

A = 1/2*π*r²

A = 1/2*3.14*9²

A = 1/2*3.14*81

A = 3.14*40.5

A = 127.17 cm²

Therefore, the area of the semicircle is 127.17 cm²

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WITCHER [35]

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Step-by-step explanation:

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The answer is D.
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