Alexis has a piece of red paper that is 4 centimeters wide. Its length is twice its width. She glues a piece of blue paper on top of the red piece measuring 3 centimeters by 7 centimeters. How many square centimeters of red paper will be visible on top?

Answers

Answer 1
Answer:

It is given:Alexis has a piece of red paper that is 4 centimeters wide. Its length is twice its width .If  length is 4cm then width = 4x2= 8cm.

Area of red paper= length x width = 4x8=32 square cm.

Alexis glues a piece of blue paper on top of the red piece measuring 3 centimeters by 7 centimeters.

Area of blue paper= 3x7=21 square cm.

Area of  red paper  that will be visible on top =32-21= 11 square cm.

Answer 2
Answer: (4x8) - (3x7) will give you what is showing of the red paper

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Answer:

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Step-by-step explanation:


3x²+5x-2=0 by any method

Answers

3x²+5x=2

x(3x+5)=2

x=2  or 3x+5=2
           
            x=3/5  

Evaluate (a + b)2 for a = 2 and b = 3

Answers

All you need to do is replace the letters by their value


(a+b)

(2+3)

= 5


I hope that's help:)

The answer is (2+3)=5

One day at St. Philip's High School, 1/2 of the pupils walked to school, 1/5 of the pupils came to school by bus, and the remaining 57 pupils came by car.What fraction came to school by car?

Answers

The first thing to do is the make the denominators of the fractions the same. 

5/10 of the pupils walked to school and 2/10 of the pupils came to school by bus. 
5/10 + 2/10 = 7/10. 
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3/10 of the pupils came to school by car. 

There are 18 bikes in the rack. There are 4 more blue bikes than yellow bikes and 2 less yellow bikes than green bikes. How many bikes of each color are in the rack? How do you figure out the problem?

Answers

Their will be the following:

Blue Bikes - 8
Green Bikes - 6
Yellow Bikes - 4

Unfortunately i figured out this problem in my head with guess work.

Hope this has helped in anyway.

If f'(x) = ln (x-2), then the graph of y=f(x) is decreasing if and only if a) 2b) 0c) 0d) x>1
e) x>2

Answers

This answer would be D. x>1