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3 years ago

Find the exact solution(s) of the equation.

Mathematics

2 answers:

kicyunya [14]3 years ago

8 0

Answer:

$x = 4 \sqrt{3} , - 4 \sqrt{3}$

elena-s [515]3 years ago

5 0

Ans...

....

Step-by-step explanation:

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Which expression is equivalent to 3(5 + 6)?

Anna [14]

Answer:

15+18

Step-by-step explanation:

3(5)+3(6)=15+18

5 0

3 years ago

An air force introductory course in electronics uses a personalized system of instruction whereby each student views a videotape

lys-0071 [83]

Answer:

See explaination

Step-by-step explanation:

We can define standard deviation in statistics as a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

See attachment for the step by step solution

8 0

3 years ago

Brianna went to the store to buy some clothes. She bought 9 pairs of pants at $20 per pair of pants, and 11 shirts that cost $15

stealth61 [152]

Answer:

$345 : whichever is closest

Step-by-step explanation:

Pants were $20 each and she bought 9 of them so multiply:

9x20=180

She paid $180 for 9 pants.

Shirts cost $15 each and she bought 11 of them so Mulitply:

15x11=165

She paid $165 for 11 shirts

Add both totals from pants and shirts

165+180=$345

5 0

3 years ago

A survey organization, as part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten y

lyudmila [28]

Answer: $69811

Step-by-step explanation:

Given : A survey organization, as part of the United States Census Bureau, conducts a yearly census similar to the one taken every ten years, but with a smaller percentage of participants.

One of these surveys estimates with 90% confidence that the mean household income in the U.S. falls between $69,702 and $69,920. (1)

We know that the confidence interval is given by :-

Point estimate of mean ± Margin of error

From (1) , we have

Point estimate for mean -Margin of error = $69,702 (2)

Point estimate for mean +Margin of error = $69,920 (3)

Add (2) and (3), we get

2 (Point estimate for mean) = $139622

Divide both sides by 2, we get

Point estimate for mean=$ 69811

Therefore , the point estimate for mean U.S. household income. = $ 69811

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3 years ago

What is the amount of sales tax owed on a 550 dollar laptop computer if the tax rate is 15% ?

ryzh [129]

Convert 15% into a decimal. (0.15) Then multiply that by 550.

3 0

3 years ago

Read 2 more answers