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il63 [147K]
4 years ago
14

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen

t to x from the second equation is substituted into the first equation.
2x – 3y = –29
x + 4y = 13

2(4y + 13) – 3y = –29

2(–4y + 13) – 3y = –29

2x – 3(4y + 13) = –29

2x – 3(–4y + 13) = –29 ...?
Mathematics
1 answer:
Alisiya [41]4 years ago
5 0
The answer is <span>2(–4y + 13) – 3y = –29

Step 1: Express </span><span>x from the second equation
Step 2: Substitute x into the first equation:

The system of equations is:
</span><span>2x – 3y = –29 
x + 4y = 13

Step 1: 
</span>The second equation is:    x + 4y = 13
Rearrange it to get x:         x = - 4y + 13

Step 2:
The first equation is:          2x – 3y = –29 
The second equation is:    x = - 4y + 13
Substitute x from the second equation into the first one:
2(-4y + 13) - 3y = -29

Therefore, the second choice is correct.
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Find the value of the variable(s). If your answer is not an integer, leave it in simplest radical form.
algol13
Answers:
x = 24
y = 8√3
Explanation:

1) Since, the given triangle is a right triangle, and you have both an angle and the hypotenuse length, you can use some trigonometric ratios to find the variables.

2) The variables given represent:

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3) sine ratio:

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4) cosine ratio

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⇒ x = 16√3 cos 30° = 16√3 (√3 / 2) = 16 × 3 / 2 = 24

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3 years ago
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6 0
3 years ago
The function g(x) =x^(2)+3. The function f(x)=g(x+2).
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3 years ago
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Let f be a differentiable function on (-0o,00) such that f(-x)= f(x) for all x in (, o). Compute the value of f'(0). Justify you
snow_lady [41]

Answer:

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Step-by-step explanation:

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3 years ago
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