3 years ago

Simplify the expression

Mathematics

2 answers:

frozen [14]3 years ago

5 0

Answer:

what expression?

Step-by-step explanation:

Troyanec [42]3 years ago

4 0

Answer: …

Step-by-step explanation: you need an image

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Andrea earns $32.25 a day. After 9 days, about how much will she have earned?

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290.25 dollars earned

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3 years ago

Find the sum of this arithmetic series.<br> | 26 + 24.5 + 23 + 21.5 + ... - 17.5

emmainna [20.7K]

Answer:

127.5

Step-by-step explanation:

The given series is 26 + 24.5 + 23 + 21.5 + ... - 17.5

The first term of this series is a=26

The common difference is d=24.5-26=-1.5

The last term of the series is -17.5

The nth term is given by:

$u_n=a+d(n-1)$

$26+-1.5(n-1)=-17.5$

$-1.5n=-17.5-26-1.5$

$-1.5n=-45$

n=30

The sum of the series:

$S_{n}=\frac{n}{2}(a+l)$

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3 years ago

Can someone help me with this please?!?!?!?

dusya [7]

Answer

17 m^3

Explanation

Volume of a given prism = bh

Where b = base area and h = height of prism

Base area = 1 • 2/2 (b • h /2)

= 1

Height = 17

17 • 1 = 17 m^3

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2 years ago