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Sergeeva-Olga [200]
3 years ago
6

18-20 please find the answer​

Mathematics
2 answers:
Alisiya [41]3 years ago
6 0
-2 because since the top number is a positive number isn’t bigger than the negative number so it will be -2
NNADVOKAT [17]3 years ago
5 0
<h2>Answer: -2</h2><h2 /><h3>Step-by-step explanation:  When subtracting positive numbers, count to the left. When subtracting negative numbers, count to the right.</h3>

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How does doubling the lengths of the sides of a rectangle to form a similar rectangle affect the area
MrRissso [65]

Doubling the lengths of the sides of a rectangle quadruple the area

<h3>How to determine the effect?</h3>

Let the dimension of the rectangle be L and W.

So, the area is

A = LW

When the lengths are doubled, we have:

A2 = 2L * 2W

This gives

A2 = 4LW

This means that the initial area is multiplied by 4

Hence, doubling the lengths of the sides of a rectangle quadruple the area

Read more about similar shapes at:

brainly.com/question/14285697

#SPJ1

6 0
2 years ago
Select all the simplified expression <br>​
sineoko [7]

Answer:

1 / 3^5

1/ 243

Step-by-step explanation:

3^4 ÷ 3^9

We know that a^b ÷ a^c = a^ ( b-c)

3 ^ ( 4-9)

3^ -5

We can rewrite this as a^-b = 1/ a^b

1 / 3^5

We know that 3^5 = 243

1/ 243

5 0
3 years ago
Read 2 more answers
In a recipe for apple-grape juice, the ratio of cups of apple juice to cups of grape juice
siniylev [52]

Answer: 2

Step-by-step explanation:

5 0
3 years ago
Solve the following systems of equations:<br> 4x+5y=-4<br> 4x+3y=12<br><br> X=?<br> Y=?
Mrac [35]

For this case we have the following system of equations:

4x + 5y = -4\\4x + 3y = 12

We multiply the second equation by -1:

-4x-3y = -12

We add the equations:

4x-4x + 5y-3y = -4-12\\5y-3y = -4-12\\2y = -16\\y = \frac {-16} {2}\\y = -8

We find the value of "x":

4x = 12-3y\\x = \frac {12-3y} {4}\\x = \frac {12-3 (-8)} {4}\\x = \frac {12 + 24} {4}\\x = \frac {36} {4}\\x = 9

Thus, the solution of the system is given by:

(x, y) :( 9, -8)

ANswer:

(9, -8)

7 0
3 years ago
Read 2 more answers
Sorry for the crumbled paper someone pls help
zmey [24]

Answer:

Nasan po ba

Step-by-step explanation:

Paki sabi naman po sa comments

4 0
3 years ago
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