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statuscvo [17]
2 years ago
5

Can someone explain the answer for me? I am seeming to not get it.

Mathematics
1 answer:
antoniya [11.8K]2 years ago
5 0

Answer:

(-4,1)

Step-by-step explanation:

1. Reflection in the y-axis- if we are only focusing on A then you have to make the x negative:

                           A (-4,1)     A' (4,1)

2. Reflection in the x-axis- make the y negative in the point A:

                          A' (4,1)    A'' (4,-1)

3. Rotate 180 degrees- (x,y) rotated 180 degrees is (-x,-y):

                           A" (4, -1)      A'''(-4, 1)

side note: if 1 is already negative than two negatives make a positive, which is why -1 becomes 1 after the 180 degree rotation

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Answer:

Step-by-step explanation:

r = 7 cm

h = 15cm

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Top and bottom (These questions drive you crazy when you don't know if there is both a top and bottom).

Area = 2* pi *r^2 = 2 * 3.14 * 7^2

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Area =                                                        307.72  Don't round this.

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Cylinder body =                                      <u> 659.4</u>

<u />

Total =                                                      967.12

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3 0
2 years ago
Find two consecutive positive integers such that the sum of their squares is 421 .
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We assume the two numbers are x and (x+1)
so x^2+(x+1)^2=421
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According to the formula of quadratic 
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cuz we know the two numbers are integers
so x=14
therefore the other number is 15
To make sure that's correct
14^2+15^2=421

Hope that helps you!!


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3 years ago
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Step-by-step explanation:

hope this helps:))

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