3 years ago

Show an expression for three plus two, then times by four

Mathematics

2 answers:

RoseWind [281]3 years ago

8 0

Answer:

4(3+2)

Step-by-step explanation:

Write using order of operations

jarptica [38.1K]3 years ago

4 0

Answer:

4(3+2)

Step-by-step explanation:

there you go, hope it helps!

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Find the greatest common factor.<br> 42²x² + 42²x+ 40²<br> Enter the correct answer.

svlad2 [7]

Answer:

4a^2

Step-by-step explanation:

$4a^2x^2+4a^2x+4a^2= \\\\4a^2(x^2+x+1)$

Therefore, the largest common factor is 4a^2. Hope this helps!

3 0

3 years ago

Which expressions are equivalent to 4^-3/4^-1? CHOOSE TWO ANSWERS

ludmilkaskok [199]

The answers are A and B

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2 years ago

What is the reciprocal of 2/7

sineoko [7]

Answer:

the reciprocal of 2/7 is 7/2. you just switch the numbers

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2 years ago

A glass is 1/4 full. Then 24cm of orange juice is poured in. The glass is now 2/5 full. What is the total volume of the glass?

Phantasy [73]

160cm3

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6 0

2 years ago

A survey found that 89% of a random sample of 1024 American adults approved of cloning endangered animals. Find the margin of er

Kobotan [32]

Answer:

The margin of error for the survey is 0.016

Step-by-step explanation:

We are given the following in the question:

Sample size, n = 1024

Sample proportion:

$\hat{p} = 89\% = 0.89$

We have to find the margin of error associated with a 90% Confidence interval.

Formula for margin of error:

$z_{stat}\times \sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$z_{critical}\text{ at}~\alpha_{0.10} = 1.64$

Putting the values, we get:

$M.E = 1.64\times (\sqrt{\dfrac{0.89(1-0.89)}{1024}})\\\\M.E=0.016$

Thus, the margin of error for the survey is 0.016

3 0

3 years ago