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3 years ago

Find the surface area of a cylinder with a diameter of 8 yards and a height of 9 yards.

Mathematics

1 answer:

marysya [2.9K]3 years ago

5 0

Answer:

a=326.76 yd^2

Step-by-step explanation:

a= 2pi(d/2)h+2pi(d/2)^2=2pi(8/2)9+2pi(8/2)^2= 326.72564yd^2

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Paul finished his 800 meter race in 2 minutes and 2 seconds. Jeff finished in 121 seconds. Who finished first? (PLESES SHOW WORK

elixir [45]

Answer:

Jeff finished first

Step-by-step explanation:

To solve this equation, I can either converts 2 minutes 2 seconds to seconds or convert 121 seconds to minutes

CONVERT 2 MINUTES 2 SECONDS TO SECONDS

60 seconds = 1 minutes

to convert 2 minutes 2 seconds to seconds, multiply 2 minutes by 60 and then add 2 seconds to it

2 x 60 = 120 seconds

120 seconds + 2 seconds = 122 seconds

Paul finished in 122 seconds while Jeff finished in 121 seconds. Jeff finished first

CONVERT 121 SECONDS TO MINUTES

60 seconds = 1 minutes

To convert 121 seconds to minutes, we have to divide by 60

121/60 = 2 minutes 1 second

Paul finished the race in 2 minutes 2 seconds while eff finished the race in 2 minutes 1 second. Jeff finished first

6 0

2 years ago

How does using an angle of rotation to find the length of the arc on a circle intercepted by the angle differ

Lilit [14]

Answer:

I AM THINKING THAT THE ANSWER IS I+DON'T+KNOW=I DON'T KNOW

Step-by-step explanation:

8 0

3 years ago

What is the slope of the line that contains these points?

kati45 [8]

Answer:

$m=-7$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Find points from chart.

Point (39, 36)

Point (40, 29)

Step 2: Find slope m

Substitute: $m=\frac{29-36}{40-39}$
Subtract: $m=\frac{-7}{1}$
Divide: $m=-7$

8 0

3 years ago

Read 2 more answers

Alexa Alexa brought 32 apples for $4.16 at the rate what 1 Apple cost

Mice21 [21]

Answer:0.13

Step-by-step explanation:i think

6 0

3 years ago

Adrian jogs 3/4 mile each morning how many days will take to jog 3 miles

lbvjy [14]

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Given Information
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Adrian can run 3/4 mile in 1 morning.

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Find how long he needs to run 1 mile
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3/4 miles = 1 morning

[ Divide by 3/4 on both side ]
3/4 ÷ 3/4 miles = 1 ÷ 3/4

1 miles = 4/3 morning

----------------------------------------------------------------
Find how long he needs to take to run 3 miles
----------------------------------------------------------------
1 miles = 4/3 morning

[ multiply by 3 through ]
3 miles = 4/3 x 3
3 miles = 4 mornings

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Answer : 4 mornings
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6 0

3 years ago