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2 years ago

15

Simplify: square root of 81+18

align="absmiddle" class="latex-formula">+7

1 answer:

Lemur [1.5K]2 years ago

5 0

$\sqrt{81 \: + \: 18 \sqrt{7} \: + \: 7}$

Factor the indicated expression:

$\sqrt{(9 \: + \: \sqrt{7} ) ^{2} }$

Simplified the index, the root and also the exponent using the number 2.

$\boxed{ \bold{9 \: + \: \sqrt{7} }}$

<h3><em><u>MissSpanish</u></em> </h3>

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Answer:

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2 years ago

A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 160 lbs and each b

german

Answer:

16 boxes

Step-by-step explanation:

160+50x=1000

Solve for the x and you'll get 16.8. Now, because you can't have a fraction of a box, and you can't go over the limit, the answer is 16 boxes.

(How to solve for x:

Get x by itself by subtracting 160 to both sides.

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Divide both sides by 50.

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3 years ago

The formula for the nth term of an arithmetic sequence can be found using the formula a Subscript n Baseline = a Subscript 1 Bas

Gnoma [55]

The equation of nth term will be written as for n as will be ( $\rm a_n$ - a₁ + d) / d. Then the correct option is D.

The missing options are attached to the picture given below.

<h3>What is a sequence?</h3>

A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.

The formula for the nth term of an arithmetic sequence can be found using the formula given below.

$\rm a_n = a_1 + (n-1)d$

Then arrange the equation for n, we have

$\begin{aligned} \rm a_n - a_1 & \rm = nd - d\\\\\rm a_n - a_1 + d & \rm =nd\\\\\rm n & \rm = \dfrac{a_n - a_1 + d}{d} \end{aligned}$

Then the correct option is D.

More about the sequence link is given below.

brainly.com/question/21961097

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2 years ago

Help me please, I’ll mark brainliest

Lesechka [4]

I know that
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3 years ago

A basin was ¼ filled with water. When 350ml of water was added, it became 3/5 full. What was the capacity of the basin? (Give yo

iragen [17]

(3/5 - 1/4)x = 350 where x = capacity of the basin

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x = (350 *20) / 7 = 1000 mls Answer

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3 years ago

Read 2 more answers