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nasty-shy [4]
3 years ago
7

PLEASE HELP due today in 20 minutes i will mark you brainliest ​

Mathematics
1 answer:
zzz [600]3 years ago
6 0
Excuse if I have this wrong but I’m going to guess that in every question how the 2 is up the m or the other letters that means you are multiplying that number/ letter by its self one more time so I’m not really sure, I’m sorry.
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PLEASE ANSWER ASAP I WILL MARK BRAINLY
AURORKA [14]

Answer:

first and third

Step-by-step explanation:

Emma used the product instead of the quotient and forgot the parentheses in x-4.5

8 0
3 years ago
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Use the formula A=2πrh to find the area of the curved surface of each of the cylinders below. (Express your answers correct to 1
shusha [124]

Answer:

here,

A=2×22÷7×17/2×21

A=22×17×3

A=1122 sq.cm

3 0
3 years ago
Which matrix represents the system of equations shown below?
Leona [35]

Answer:

121-22

Step-by-step explanation:

7 0
3 years ago
Of the eggs produced by salmon,80% hatch, and of those, 25% survive to migrate to the ocean. How many eggs are needed to produce
Marina CMI [18]

Answer:

500 eggs are needed

Step-by-step explanation:

so 1/4 or the 80 percent make it to the ocean so 20 percent of total salmon make it to the ocean.

so total number of eggs x

1/5x=100

x=500

if my answer helps please mark as brainliest.

8 0
2 years ago
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Find the product.<br> (x+2)(x−2)=
kaheart [24]

Answer:

x² - 4

Step-by-step explanation:

Step 1: Write expression

(x + 2)(x - 2)

Step 2: FOIL

x² + 2x - 2x - 4

Step 3: Combine like terms

x² - 4

8 0
3 years ago
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