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katen-ka-za [31]
3 years ago
9

Use the substitution method to solve the system of equations. Choose the

Mathematics
2 answers:
creativ13 [48]3 years ago
7 0
The answer is c !!!!!!!!!!!!!!!!!
BigorU [14]3 years ago
3 0

Answer:

C. (4,28)

Step-by-step explanation:

When y = 8x - 4 ; x = 4

when u substitute x in the equation

the value of y = 28

y = (8 x 4) - 4

= 32 - 4

= <u>2</u><u>8</u><u>.</u>

As coordinates it would be (x,y) = <u>( 4,28 )</u>

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FrozenT [24]

Answer:

1. 392

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Step-by-step explanation:

1. 7×8 + 3×8×14 = 56 + 336 = 392

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3. 12x^{2} + 3x - 8x - 2 = 12x^{2} -5x-2

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3 years ago
Whats is the Least common multiple of 9 and 22
m_a_m_a [10]
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4 0
3 years ago
40 POINTS Worth
Verizon [17]
Is this a right triangle or not?  If it's a right triangle, you could use the Pythagorean Theorem to find the length of the 3rd side, which would be the hypotenuse.  Thus, 14^2 + 4^2 = c^2, where c is the length of the hypot.

Then                        196 + 16 = 212, and this is c^2.  Then c, the length of the hypotenuse, is sqrt 212, or approx. 14.6 inches.

This does not agree with any of the four possible answers.  Thus, you must look at each of these possible answers and eliminate any that could not be correct.

for example:  if you take 10 inches and add 4 inches, you get 14 inches.  The result would not be a triangle, but rather a straight line.  

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5 0
3 years ago
Read 2 more answers
Plug x= 2 into<br> 2x^4 - 3x^2 +5
GaryK [48]

Answer:

For example, try entering the equation 3x+2=14 into the text box. ... Here are some examples: y=2x^2+1, y=3x-1, x=5, x=y^2. To graph ... enter the expression you want to evaluate,  want to    

Step-by-step explanation:

8 0
3 years ago
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