3 years ago

Which of the following expressions is not correctly written in scientific notation?

Mathematics

2 answers:

anygoal [31]3 years ago

7 0

C because scientific notation has to be number between 1-10

VladimirAG [237]3 years ago

7 0

I believe its A because i ts not really necessary to multiply by 1

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Sally and Eddy had a total of $580 after spending $80 and eddy had 240 left how much money does Sally have?

levacccp [35]

Answer:

260

Step-by-step explanation:

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3 years ago

A line passes through the point (8, -9) and has a slope of 3/4 . Write an equation in point-slope form for this line.

Finger [1]

Answer:

y+9=3/4(x-8)

Step-by-step explanation:

y-y1=m(x-x1)

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What is the answer to the equation 5x=2x+20?

Agata [3.3K]

I don't know. But I know how to find it. Let's work it out together:

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3 years ago

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A cylindrical piece of iron pipe is shown below. The wall of the pipe is 0.75 inch thick, and the pipe is open at both ends:

Gnesinka [82]

Answer:

(A)398 cubic inches

Step-by-step explanation:

Given a cylindrical piece of iron pipe with the following dimensions:

Height = 12 inches
Diameter = 8 inches

Therefore: External radius =4 Inches

Since the wall of the pipe is 0.75 inch thick,

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Inside Volume of the Pipe

$= \pi*3.25^2*12\\=398$ cubic inches$

The correct option is A.

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3 years ago

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Alekssandra [29.7K]

The answer is C
I pretty sure

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