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KengaRu [80]
2 years ago
9

PLEASE HELP !!!!!!!Find y, such that ABC ~A DEF.

Mathematics
1 answer:
Lemur [1.5K]2 years ago
7 0

Use proportionals to find y.

\frac{9}{18}  =  \frac{6}{y}

Answer:y=12

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Is 0.82 (reapting) rational
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Answer:

no

Step-by-step explanation:

no

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The conjugate is used in _____ of complex numbers.
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A triangle with sides lengths of 17, 21, and 10. is this a right triangle?
USPshnik [31]
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3 0
3 years ago
A+b=77,a-b=13 care sun nr
STALIN [3.7K]
It's a simultaneous equation:
Steps:
1.Number the equations..

a+b=77 -1
a-b=13 -2

2. Choose what variable you want to use. In this case I would use the "b". Since the signs in front of the "b's" are different, add the two equations together

a + b = 77
+ + +
a (-b) = 13

Which gives;
2a = 90

Then solve to find a:
2a=90
a= 90/2
a=45

3.Then plug the "a" value into any of the original equations to find the "b" value. I would use equation 1 since the all the variables are positive.

a + b = 77
(45) + b = 77
b=77-45
b=32

4.Solution

a=45
b=32
3 0
3 years ago
Solve y = 1/-25 x 8 + 175
Elena L [17]

Answer:

174.68

Step-by-step explanation:

Use PEMDAS. First, multiply 1/-25 by 8. (-8/25 or-.32)

Then, add 175 and y should= 174.68.

8 0
3 years ago
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