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Jlenok [28]
2 years ago
15

In solving the following system of equations, how many equations do you need to multiply in order to use the method of eliminati

on?
Equation 1: −5x−20y=−15 Equation 2: 2x + 8y = 6

A. Two
B. None
C. One

Give the solution to the system above
A. No solution
B. (3, 7)
C. IMS
D. ( -2, 5)
Mathematics
1 answer:
77julia77 [94]2 years ago
4 0

Answer:

a and d i think

Step-by-step explanation:

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Answer:

<em>(</em><em>f-g</em><em>)</em><em>(</em><em>x</em><em>)</em><em>=</em><em> </em><em>-3x</em><em>^</em><em>3</em><em> </em><em>+</em><em> </em><em>x</em><em>^</em><em>2</em><em> </em><em>+</em><em> </em><em>6x</em>

<em>(</em><em>f</em><em>+</em><em>g</em><em>)</em><em>(</em><em>×</em><em>)</em><em>=</em><em> </em><em>3x</em><em>^</em><em>3</em><em> </em><em>+</em><em> </em><em>x</em><em>^</em><em>2</em><em> </em><em>+</em><em> </em><em>6x</em>

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Step-by-step explanation:

I hope that helps

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2 years ago
Find x, round to the nearest tenth degree.
Romashka [77]

Answer:

Step-by-step explanation:

Use the Law of Cosines

A = arccos[(10²+14²-9.6²)/(2×10×14) ≅ 43.3°

5 0
2 years ago
How do i solve using the substitution method?<br> x+y=-1 <br> y=-2x
leonid [27]

Answer:

(1, -2)

Step-by-step explanation:

<u>Step 1:  Set the second equation into the first </u>

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x = 1

<u>Step 2:  Solve the second equation </u>

y = -2(1)

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Answer:  (1, -2)

4 0
3 years ago
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Please give an explanation on why the answer is the answer PLEASE ANSWER I WILL GIVE BRAINLIEST
tester [92]

Answer: y=2x+3

Step-by-step explanation:

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Horizontal distance = 48'

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