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Blababa [14]
3 years ago
7

(HELP I HAVE A TIMED QUIZ)

Mathematics
1 answer:
sertanlavr [38]3 years ago
3 0

Answer:

7

Step-by-step explanation:

that answer isnt real do u know the answer yet

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Help me please thank you
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<u><em>Both the statement and its contrapositive are true. </em></u>A right angle will always be 90 degrees, so both are true.

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Need help with this!!!!!!!!
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The linear combination method is the same as the elimination method.  Let's multiply the second equation by -2 so the x terms cancel each other out. When we do that we get a system of 2x-3y=13 and -2x-4y=8.  The x-terms cancel each other out giving us -7y=21 and y = -3.  Now sub -3 into one of the equations to solve for x.  x+2(-3)=-4, and x - 6 = -4.  x = 2.  So the solution for our system is (2, -3)
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3 years ago
Abby, Bik, Cari, Dawn, and Ellen collect T-shirts. Abby has the most. Bik has 2.5 times as many T-shirts as Cari. Dawn has 1/3 a
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A=abby's shirts
b=bik's shirts
c=cari's shirts
d=dawn's shirts
e=ellen's shirts


a> everybody
b=2.5c
d=(1/3)c
a+b+c+d=120
e=2d+1
e=13
oook

e=13=2d+1
13=2d+1
12=2d
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d=(1/3)c
6=(1/3)c
18=c

b=2.5c
b=2.5(18)
b=45

a+b+c+d=120
a+45+18+6=120
a+69=120
a=51
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What is the total surface area of a square pyramid with a base length of 10 meters and a slant height of 13 meters?
Harlamova29_29 [7]
130 please give Brian
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