3 years ago

Solve without using calculator

Mathematics

1 answer:

antiseptic1488 [7]3 years ago

5 0

Just secretly use a calculator... And show your working log square root of 2 and so on...

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QUICK! The radius of a cylindrical construction pipe is 2 ft. If the pipe is 16 ft long, what is its volume?

Alika [10]

Answer:

V=201.06 ft²

Step-by-step explanation:

V= $\pi$ r²h

V= $\pi$ 2²16

V=64 $\pi$

V=201.06

4 0

3 years ago

Read 2 more answers

Show how to solve 378*6 using place value with regrouping. Explain how you knew when to regroup.

SpyIntel [72]

<span>To regroup 378 x 6, you must first establish the place values of each digit. 3 has a place value of 300, because it is in the hundreds column; 7 has a place value of 70 because it is in the tens column; 8 has a place value of 8 because it is in the units column. This means you can regroup 378 x 6 as (300 x 6) + (70 x 6) + (8 x 6). This makes 2,268. </span>

7 0

3 years ago

An aptitude test has a mean score of 80 and a standard deviation of 5. The population of scores is normally distributed. What ra

sdas [7]

Answer:

82.62

Step-by-step explanation:

Mean score (μ) = 80

Standard deviation (σ) = 5

The 70th percentile of a normal distribution has an equivalent z-score of roughly 0.525.

For any given score, X, the z-score can be determined by:

$z=\frac{X-\mu}{\sigma}$

For z = 0.525:

$0.525=\frac{X-80}{5}\\ X=82.62$

A raw score of approximately 82.62 corresponds to the 70th percentile.

6 0

4 years ago

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A student is taking a math course in which there will be four tests, each worth 100 points. The student has scores of 93, 92, an

leva [86]

Answer:C

Step-by-step explanation:

6 0

3 years ago

(5,0) is a solution to the equation y = 5x + 5 Question 11 options: True False

Keith_Richards [23]

Answer:

False

Step-by-step explanation:

y=5x + 5

0=5 (5)+5

0=10+5

0≠15

False

5 0

4 years ago