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RSB [31]
2 years ago
15

can someone help me im tryna finish as. much as pre-algebra as i can im leaving to vacation and i need to finsish allot of math!

someone help :C

Mathematics
1 answer:
konstantin123 [22]2 years ago
7 0

Answer:

i only know the answer for the first one, im sorry, its 30

Step-by-step explanation:

a=h  b/2      if you need help with finding the area of something again use this, Geometry calculator

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Isaiah knows that 1/4 is written 0.25 as a decimal. How can he find a decimal for 5/4 without dividing?
skelet666 [1.2K]

Answer:

Step-by-step explanation:

1/4*5= 5/4

1  1/4

or do the same with decimals

(1/4=0.25)*5=

0.25*5=1.25

1.25=5/4=1  1/4

hope it helped ;0

5 0
2 years ago
Simplify -3p 3 + 5p + (-2p 2) + (-4) - 12p + 5 - (-8p 3).
MissTica

Answer:5p^3-2p^2-7p+1

Step-by-step explanation:

-3p^3+5p+(-2p^2)+(-4)-12p+5-(-8p^3)

open brackets

-3p^3+5p-2p^2-4-12p+5+8p^3

Collect like terms

-3p^3+8p^3-2p^2+5p-12p-4+5

5p^3-2p^2-7p+1

3 0
3 years ago
Graph the image of QRS after a rotation 270º counterclockwise around the origin.
sergij07 [2.7K]

Answer:

Q=(1,-5)

R=(5,-5)

S=(2,-7)

Step-by-step explanation:

8 0
3 years ago
The ratio of the perimeters of two similar polygons is 5:9. What is the ratio of the areas?​
lyudmila [28]

The ratio of the areas of the two polygons can be 25:45

Just Multiply the two give numbers by 5 and you get the answer.

6 0
2 years ago
Read 2 more answers
Given the diagram, which theorem would you use to find AD?
bagirrra123 [75]

Answer:

B

AD will be 20

<h2 /><h2><em><u>Please</u></em><em><u> </u></em><em><u>mark</u></em><em><u> </u></em><em><u>me</u></em><em><u> </u></em><em><u>brainlie</u></em><em><u>st</u></em></h2>
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2 years ago
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