3 years ago

(8x^3-6x)-(10x^3+3x^2-x)

Mathematics

1 answer:

den301095 [7]3 years ago

7 0

The answer is on the pic

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There were 100 questions on a math test. If Jamal got 4 times as many right as he got wrong, what was Jamals score?

IgorLugansk [536]

Jamal's score is 80

<u>Explanation:</u>

Given:

Number of questions = 100

Let w be the number of wrong answers

Let r be the number of right answers

According to question,

r = 4w

r + w = 100

Solving both the equations we get:

4w + w = 100

5w = 100

w = 20

If w = 20 then r = 4 X 20 = 80

Therefore, Jamal's score is 80

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3 years ago

Surface area of solid cuboid 8cm 6cm 2cm

strojnjashka [21]

Answer:

152 $\text{cm}^2$

Step-by-step explanation:

We know that the total surface area of a cuboid is the sum of the surface area of all six of its faces.

We also know that each opposing side has the same surface area. Thus the total surface area is equal to:

$2*(8*6+8*2+6*2)\\\\=2*(48+16+12)\\=2*76\\=152$ ( $\text{cm}^2$ )

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2 years ago

How am any zeros are in the simplified expression 4 times 10^ x? A. x B. x -1 C. x+1. D. 4x. Which One is it?A or B or C or D? p

Alexxx [7]

I think it is A or D

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3 years ago

2.5 hours is equal to 2 hours and 30 minutes <br> True or false<br>

Feliz [49]

Answer:

True because 1/2 an hour is 30 minutes.

Step-by-step explanation:

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2 years ago

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Chris is packing toy boxes that are cubes with 4 inch-sides into a crate. The crate is 3 feet wide by 3 feet long by 2 feet tall

OleMash [197]

A lot of toy boxes my dude

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