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ziro4ka [17]
3 years ago
15

. A cylinder has a radius of 7 cm and a height of 12 cm. Calculate the total surface area. (Take π = 22/7)

Mathematics
1 answer:
Sergeu [11.5K]3 years ago
7 0

Answer:

154cm^2

Step-by-step explanation:

Area of circle= pi×r^2

= 22/7 × (7cm)^2

= 22/7 × 49cm^2

= 154cm^2

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What is the interest rate of each investment if The annual interest on a $17,000 investment exceeds the interest earned on an $8
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<u>Solution-</u>

Let's assume, the rate of interest of $8000 is x%,

then the rate of interest of $17000 is (x+0.3x) =1.3x%

Interest earned by $8000,

i_1=\frac{8000\times x\times 1}{100} =80x

Interest earned by $17,000,

i_2=\frac{17000\times 1.3x\times 1}{100} =221x

According to the question,

\Rightarrow i_1=i_2+276

\Rightarrow 221x=80x+276

\Rightarrow 221x-80x=276

\Rightarrow 141x=276

\Rightarrow x=1.96

∴ Rate of interest of $8000 is 1.96% and rate of interest of $17000 is (1.3×1.96) =2.55%

3 0
3 years ago
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marissa [1.9K]

Answer:

y = 3 - x + x²

Step-by-step explanation:

Given the data:

x. y

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y = A + Bx + Cx²

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4 0
3 years ago
What is the quotient?
AlexFokin [52]

Answer:

3/2

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Simplify by eliminating 4 in the fraction.

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Tom [10]
Anything that is inside the perenthasis are just like a regular math problem, so your answer should be:
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5 0
4 years ago
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Answer: F

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