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11Alexandr11 [23.1K]

3 years ago

7

Which of the following steps would you perform to the system of equations below so that the equations have equal x-coefficients?

2 answers:

KatRina [158]3 years ago

6 0

Answer: A) Multiply both sides of the top equation by 2.

Step-by-step explanation: The x-coefficient of the first equation (the number that is next to the x) is 4, and the x-coefficient of the second equation is 8, in order to them to be equal, we need to multiply the first equation by 2 (both sides), so the correct answer is the corresponding to option A, the equations would be:

8x+4y=8 first equation (after multiply it by 2)

8x-y=18 second equation

12345 [234]3 years ago

5 0

<u>The answer is A. Multiply both sides of the top equation by 2</u>

So since we know that 4 × 2 = 8, it would only make sense to multiply both sides by 2 so that the top equation has the x coefficient be 8.

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In the relation defined by the equation y = x2, for all x > 0, y is a function of x because

Slav-nsk [51]

X cannot be a negative number

7 0

3 years ago

I need help answering the question in the picture provided

adoni [48]

answer:

(a).

Equation of circle is <u>x²</u><u> </u><u>+</u><u> </u><u>y²</u><u> </u><u>-</u><u> </u><u>2</u><u>5</u><u> </u><u>=</u><u> </u><u>0</u>

(b).

(-5, 0) » yes

(√7, 1) » no

(-3, √21) » no

(0, 7) » no

Step-by-step explanation:

(a).

If centred at origin, centre is (0, 0)

General equation of circle:

${ \boxed{ \bf{ {x}^{2} + {y}^{2} + 2gx + 2fy + c = 0}}}$

but g and f are 0:

${x}^{2} + {y}^{2} + c = 0 \\ but : \\ c = {g}^{2} + {f}^{2} - {r}^{2} \\ c = { - 25}$

8 0

2 years ago

If 2x + 8 = 16 , what is the value of x + 4 ?

KonstantinChe [14]

Answer:

the answer is 879

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Jeremiah always rides his bike to and from work. The total

Katen [24]

From the computation done, the total kilometers that he uses last month will be 262.8 kilometers.

The total length of a trip to and from work is 14.6 kilometers and last month, Jeremiah worked 18 days.

Therefore, the kilometers that he rode his bike to and from work last month will be;

= 14.6 × 18.

= 262.8 kilometers.

Learn more about equations on:

brainly.com/question/13763238

7 0

2 years ago

9(x + 1) = 25 + x<br><br> x = 2<br> x = 3<br> x = 4<br> x = 5

wolverine [178]

Answer:

2

Step-by-step explanation:

9x + 9 = 25 + x

8x = 16

x = 2

make sure to ask if you need any further guidance.

5 0

1 year ago

Read 2 more answers