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Katarina [22]
3 years ago
13

Simplify this expression. 2√5(13+√2)

Mathematics
2 answers:
Ann [662]3 years ago
7 0

Answer:

26√5+2√10

Step-by-step explanation:

2√5(13+√2)

Distribute

2√5  *13+√2 *2√5

We know that sqrt(a) * sqrt(b) = sqrt(ab)

26√5+2√10

valkas [14]3 years ago
3 0

Answer:

26√5+2√10

Step-by-step explanation:

Multiplying variables to avoid parentheses. Using exponent laws in exponent terminology to avoid parentheses. Through incorporating factors, merge the terms like. Combine consistencies.

Description:

The steps are above to simplify expression. The answer for this question is=2√10+26√5(Decimal: 64.462323).  Short form = 26√5+2√10. Answer is 26√5+2√10.

Please mark brainliest

<em><u>Hope this helps.</u></em>

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Ernest borrowed $1000 from the bank. The interest rate is 30% and he borrowed it for 9 months. How much will he owe the bank?
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The total amount Ernest owes the bank after 9 months is $1,225.00

How many months of interest would be paid?

The fact the loan was taken for nine months means that the borrower, Ernest needs to pay interest for nine months, in other words, we would time-apportion the annual interest of 30% to determine the 9-month interest as shown below:

9-month interest rate=30%*9/12

9-month interest rate=22.50%

The amount Ernest is owing the bank is the principal borrowed plus the interest for  9 months as computed below:

total amount owed after 9 months=$1000*(1+22.50%)

total amount owed after 9 months=$1000*1.2250

total amount owed after 9 months=$1,225.00

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Step-by-step explanation:

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3 years ago
Suppose the population standard deviation is σ = 5 , an SRS of n = 100 is obtained, and the confidence level is chosen to be 98%
beks73 [17]

Answer:

1.165.

Step-by-step explanation:

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Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.01 = 0.99, so z = 2.33

Now, find the margin of error M as such

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In which \sigma is the standard deviation of the population and n is the size of the sample.

In this problem, we have that:

\sigma = 5, n = 100. So

M = z*\frac{\sigma}{\sqrt{n}}

M = 2.33*\frac{5}{\sqrt{100}} = 1.165

So the correct answer is:

1.165.

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Step-by-step explanation:

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Step-by-step explanation:

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