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irina1246 [14]
3 years ago
9

A solid cylinder has a radius of 4.9 cm and a height of 3.5 cm. Work out the total surface area of the cylinder. Give your answe

r correct to 3 significant figures.

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Answer:

252 cm²

Step-by-step Explanation:

=>Given:

r = 4.9 cm, and h = 3.3 cm of a solid cylinder, π = 3.14

=> Required:

Total Surface Area (T.S.A) = 2πrh + 2πr²

T.S.A = 2*3.14*4.9*3.3 + 2*3.14*4.9²

= 101.5476 + 150.7828

= 252.3304

= 252 cm² (approximated)

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Which expression is equivalent to r to the 9th over r to the 3rd
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Answer:

r^{6}

Step-by-step explanation:

To make this a bit easier to see, we'll expand that expression.

R to the 9th is just r times itself 9 times. R to the third is r times itself 3 times.

(excuse my bad formatting)

<u>The expression:</u>

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So, we can cancel 3 r's from the numerator and denominator.

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3 years ago
What is the linear equation for figuring out the daily pay rate for working 8 hrs a day at a pay rate of $20 hour?
kupik [55]
<span>$20 per hour

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4 0
3 years ago
A dietitian at a hospital wants a patient to have a meal that has 126 grams of protein, 82 grams of carbohydrates, and 101.5 mil
katovenus [111]
<h3>The dietitian provide 2.5 numbers of salmon steak, 1 baked egg and 2 acorn squash for the patient. </h3>

Step-by-step explanation:

Let

Number of salmon steak = x

Number of baked eggs =y

and Number of acorn squash =z

Total amount of protein that is provided to the patient =40 x +20 y+3 z

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According to the problem,

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Solving the above equations

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So ,  The dietitian provide 2.5 numbers of salmon steak, 1 baked egg and 2 acorn squash for the patient.

4 0
3 years ago
Eight less than a number is less than 10
fomenos

Answer:

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Step-by-step explanation:

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Stels [109]

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10 x 7 = 70 dimes

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2 years ago
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