3 years ago

Help me please please help

Mathematics

2 answers:

True [87]3 years ago

4 0

Answer:

te top

Step-by-step explanation:

because if you look at it the right way you will see

Vilka [71]3 years ago

3 0

Answer:

Step-by-step explanation:

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Levart [38]

Answer:

4:25

Step-by-step explanation:

Given that,

r₁ = 15 inches, r₂ = 6 inches

The area of the cylinder is given by :

$A=2\pi rh+2\pi r^2$

The ratio of surface areas of two cylinders,

$\dfrac{S_2}{S_1}=\dfrac{2\pi r_2h_2+2\pi r_2^2}{2\pi r_1h_1+2\pi r_1^2}\\\\\dfrac{S_2}{S_1}=(\dfrac{r_2}{r_1})^2\\\\=\dfrac{6}{15}^2\\\\=\dfrac{4}{25}$

Hence, the required ratio is 4:25.

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3 years ago

A certain alloy contains 14.25% nickel. How much nickel is there in a piece weighing 375 pounds? Round your answer to the neares

Tomtit [17]

<span>Turn the percent to a decimal by moving the decimal point over 2 places to the left. then multiply. so, 1425 * 375</span> = 53.44

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4 years ago

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Helen [10]

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Anna71 [15]

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Step-by-step explanation:

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