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3 years ago

Rob found 103 + 1875 = x using mental math. Use at least 3 terms from the world list to describe how Rob could find the sum.

Mathematics

1 answer:

arlik [135]3 years ago

6 0

Answer:

Make, sum, total

Step-by-step explanation:

There are many terms in the word list that could be used to describe how Rob had solved the sum in his head. He had made and arranged numbers vertically in his head then sum it and at last he found the total.

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drek231 [11]

Answer:

$\frac{v}{-9}$ < -18 or v ÷ -9 < -18

Step-by-step explanation:

"The quotient" means that it is a division problem. That means you have to divide.

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3 years ago

What is the equation of a line, in general form, with a slope of -2 and a y-intercept of 8?

Finger [1]

Y=mx+b
y= -2x+8
Rearranging gives you the answer of
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Sati [7]

Answer:

The Indus River Valley Civiization.

Step-by-step explanation:

https://www.history.com/topics/ancient-middle-east/persian-empire#section_1

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3 years ago

Use long or synthetic division to find the following quotients (x^3+2x^2!22x-45)÷(x+5)

svetoff [14.1K]

Answer:

$\boxed{\textsf{ The quotient is $\sf x^2-3x-7$ and the remainder is (-10).}}$

Step-by-step explanation:

Here we will be using long division method to find the quotient . Here we need to divide (x³+2x²-22x-45) and (x+5) . So lets divide .

x+5) x³+2x²-22x-45 ( x² -3x -7

x³ + 5x²

- -

______________

- 3x²-22x -45

-3x² -15x

+ +

______________

-7x -45

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______________

-10

Quotient = x² -3x -7

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<h3>★Hence the quotient is x² -3x -7 and the remainder is (-10) .</h3>

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3 years ago

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AlexFokin [52]

Answer:

1.625

Step-by-step explanation:

First we need to find the mean of this data set

29+32+33+28+30+30+29+33=244

Then we divide 244 by the amount of numbers in the set

244/8=30.5

Then we need to find the deviation of each number

29 | 32 | 33 | 28 | 30 | 30 | 29 | 33

1.5 | 1.5 | 2.5 | 2.5 | 0.5 | 0.5 | 1.5 | 2.5

Then we take the mean from this set of data

1.5+1.5+2.5+2.5+0.5+0.5+1.5+2.5=13

Then divide

13/8=1.625

I hope this helps :)

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