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3 years ago

15

Paulita reads an average of 20 pages each day. she has 6 days to read 10 squared pages. will se finish her reading in 6 days? ex

plain.

1 answer:

denis-greek [22]3 years ago

8 0

Yes because 10 squares is 100 6*20 = 120 which is more than 100

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What is the surface area of sphere with radius 13 ft?

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SA=4pir^2
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SA=676pi ft^2

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3 years ago

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Which of the a-values satisfy the following inequality?<br> 7 + a < 11

Zolol [24]

Answer:

a < 4

Step-by-step explanation:

7 + a < 11

Subtract 7 from each side

7+a-7 <11-7

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A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a s

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Answer:

88.51 is the minimum score needed to receive a grade of A.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 73

Standard Deviation, σ = 11

We are given that the distribution of exam grades is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

We have to find the value of x such that the probability is 0.0793.

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$= 1 -P( z \leq \displaystyle\frac{x - 73}{11})=0.0793$

$=P( z \leq \displaystyle\frac{x - 73}{11})=0.9207$

Calculation the value from standard normal z table, we have,

$P(z \leq 1.410) = 0.9207$

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Hence, 88.51 is the minimum score needed to receive a grade of A.

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3 years ago

How much cubic centimeters of dirt must be removed when digging for a foundation of a building if the excavation is 32m long, 12

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Answer:

3,072m

Step-by-step explanation:

32 × 12× 8= 3,072 (This is only you are multiplying them all)

If you are trying to find the area then its: 384m

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2 years ago

Is the square root of 3 rational or irrational

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Answer:

The square root of three is irrational.

Step-by-step explanation:

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3 years ago