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3 years ago

Expand and simplify: a(a + 5)

Mathematics

1 answer:

RoseWind [281]3 years ago

6 0

Answer:

a squared+ 5a

Step-by-step explanation:

a(a+5)

multiply everything inside the bracket

a times a is a squared

a times 5 is 5a

i hope i helped

please give me a brainliest!!<3

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A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25

svetoff [14.1K]

Below is the solution:

volume = lwh
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3 years ago

The Questions above.

Sergeeva-Olga [200]

Answer:

It's B.9

Step-by-step explanation:

Because

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3 years ago

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PLS HELP !!!!!!!<br><br> Find the value of x. <br><br> x=

Gre4nikov [31]

The answer to that question is 1

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3 years ago

Please explain every step

pogonyaev

<h3>Answer:</h3>

761680

<h3>Explanation:</h3>

$\sf \boxed{\sum _{n=1}^{44}\:60\left(1.2\right)^{n-2}}$

<u>Identify the following's</u>:

First Term [a] = 60(1.2)ⁿ⁻² = 60(1.2)¹⁻² = 50

Common ratio [r] = 1.2

Total Terms [n] = 44

===========================

$\sf Geometric \ Sum \ of \ Terms = \dfrac{a(r^n - 1)}{r-1}$

===========================

Solving Steps:

<em /> $\rightarrow \sf \dfrac{a(r^n - 1)}{r-1}$ <em />

<em />

<em /> $\rightarrow \sf \dfrac{50(1.2^{44} - 1)}{1.2-1}$ <em />

<em />

<em /> $\rightarrow \sf 761679.5808$ <em />

<em />

$\rightarrow \sf 761680 \ \ \ (rounded \ to \ nearest \ integer)$

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2 years ago

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ruslelena [56]

Answer:

Step-by-step explanation:

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3 years ago