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1 year ago

Help please!! I need to figure out the are of the shape pls explain answer

Mathematics

2 answers:

Andrews [41]1 year ago

4 0

Answer:

390 ft²

Step-by-step explanation:

25x10= 250

20x7= 140

250+140= 390

Alisiya [41]1 year ago

3 0

Here you go i tried my best to explain it step by step :)

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Henry measured a line to be 7.8 inches long. If the actual length of the line is 7.4 inches, then what was the percent error of

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The percent error of the measurement is 5.4%

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2 years ago

The average number of newspapers for sale in an airport stand is 15. SD is 6. The average age of the pilots is 36 and SD is 4. W

balu736 [363]

Answer:

The average age of pilots has a lower coefficient of variation, so it is the most consistent data set.

Step-by-step explanation:

The coefficient of variation is used to measure consistency of a data set. It is the standard deviation divided by the mean. The higher the coefficient of variation, the more variable, that is, the least consistent the data set is.

The average number of newspapers for sale in an airport stand is 15. SD is 6.

The consistency is:

$C = \frac{6}{15} = 0.4$

The average age of the pilots is 36 and SD is 4.

The consistency is:

$C = \frac{4}{36} = 0.11$

The average age of pilots has a lower coefficient of variation, so it is the most consistent data set.

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3 years ago

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kaheart [24]

$85.36 is the correct answer

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2 years ago

Find the value of y. Round your answer to the nearest tenth.

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Is a calculator allowed? 8/13 = 0.61538. Then take arccos of that to get 52 degrees. Arccos on a calculator might be seen as acos or inv-cos.

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2 years ago

erics cell phone service costs $40.00 a month for unlimited calls. he also pays $0.02 for each text message he sends. what equat

KatRina [158]

Answer:

40.021

Step-by-step explanation:

Unlimited calls = $40

Text message = $0.021

NOTE:There is a difference between the value you gave for cost of text messages in the question and the values given in the group of answers. I will use $0.021 for cost of text messages since it is common to all answer choices.

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C = $40 + $0.021

= $40.021

Therefore, the equation which represent the total cost in dollars for a month is 40.021

A. 40.021

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2 years ago