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kirza4 [7]
3 years ago
11

The diameter D of a sphere is 18.6 cm. Calculate the sphere's surface area A

Mathematics
1 answer:
IRINA_888 [86]3 years ago
6 0

Answer:

1086.3 cm²

Step-by-step explanation:

surface are of sphere = πD²

SA = (3.14)(18.6 cm)^2

SA = 1086.3 cm²

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7 times a number is 18 less than the square of that number. Find the positive solution.
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Read 2 more answers
Refer to the various selling prices of various homes in a community that follow the normal distribution with mu (population mean
blsea [12.9K]

Answer:

0.43715

Step-by-step explanation:

We solve using z score calculator

z = (x-μ)/σ, where

x is the raw score

μ is the population mean = $276,000

σ is the population standard deviation = 32,000

For x = $276,000

z = 276,000 - 276,000/32000

z = 0

Probability value from Z-Table:

P(x = 276000) = 0.5

For x = $325,000

z = 325,000 - 276,000/32000

z = 1.53125

Probability value from Z-Table:

P(x = 325000) = 0.93715

The probability that the next house in the community will sell for between $276,000 and $325,000 is

P(x = 325000) - P(x = 276000)

= 0.93715 - 0.5

= 0.43715

8 0
3 years ago
Please help!!!! No explanation needed <br> Help is appreciated
Elodia [21]

Answer:

A

-Brain Indigo

8 0
3 years ago
How do you write 7,870 in scientific notations ?
Nuetrik [128]

Answer:

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Step-by-step explanation:

^ means to the power of

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