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3 years ago

9

WHEN adding integers and the signs are different, how do you know what the sign will be?

1 answer:

Neko [114]3 years ago

4 0

Step-by-step explanation:

when you add integers remember that the positive integers move you to the right (so the integer will increase) and negative integers move you to the left (so the integer will decrease)

Hope this helps.

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A hat contains several slips of paper with names. Each name is written on one or more slips. Grace chooses a slip of paper from

7nadin3 [17]

Answer:

You have at least a 1 out of 40 chance that your name will be drown

Step-by-step explanation:

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3 years ago

This is my sister's work, please help. will give brainliest. DON'T GIVE STUPID ANSWERS, I WILL REPORT

Diano4ka-milaya [45]

Blue is 2 6 9 12 hope this helps

8 0

3 years ago

hammer [34]

Answer:

60

Step-by-step explanation:

ingressos: 55 x 2 = 110

25 x 2= 50 Tax

110+50=160 total

160-100= 60

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3 years ago

A box with a square base and no top is to be built with a volume of 4000 in3. find the dimensions of the box that requires the l

vekshin1

Let the length of the square base be x inches .

And the height of the box be y inch .

Volume = x*x*y

4000 = x *x *y

$y = \frac{4000}{x^2}$

S = x*x + 2xy + 2 x y

$S = x^2 + 4 xy$

$S = x^2+ 4x* \frac{4000}{x^2}$

$S = x^2 + \frac{16000}{x}$

$S ' = 2x - \frac{16000}{x^2}$

S ' =0

$2x - \frac{16000}{x^2}=0$

$2x^3 - 16000 = 0$

$x^3 = 8000$

x = 20

$y = \frac{4000}{20^2} = \frac{4000}{400} = 10$

6 0

3 years ago

What is an<br> equation of the line that passes through the points (-4, 2) and<br> (-8, -3)?

Katen [24]

Answer:

$y = 1\frac{1}{4}x+7$

Step-by-step explanation:

The equation of a straight line can be written as $y=mx+b$ .

With the pair of coordinates (coordinates are written in the form $(x,y)$ ) , the following can be written:

$2=-4m+b$

$-3=-8m+b$

To solve for a variable, we can use elimination:

$-4m+b-(-8m+b)=2-(-3)$ (subtract the second equation from the first)

$-4m+b+8m-b=2+3$

$4m=5$ ( $b$ is eliminated)

$m=\frac{5}{4}$

$=1\frac{1}{4}$

To solve for the other variable, we can use substitution:

$2=-4m+b$

$2=-4(1\frac{1}{4})+b$

$2 = -5 + b$

$b = 7$

$\therefore y=1\frac{1}{4}x+7$ is the linear equation for the line that passes through the points $(-4, 2)$ and $(-8,-3)$

8 0

3 years ago