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Viefleur [7K]
3 years ago
5

Which ordered pair is a solution to the equation 4x + 7y = –5?

Mathematics
1 answer:
anzhelika [568]3 years ago
8 0
 (–4, 3) would be your correct answer  
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Does anyone know this answer??
Aleonysh [2.5K]

For this case we have the following equation:

(2x + 3) ^ 2 + 8 (2x + 3) + 11 = 0

Let u = 2x + 3

We have:

u ^ 2 + 8u + 11 = 0

By definition, given an equation of the form ax ^ 2 + bx + c = 0

The quadratic formula, to find the solution can be written as:

x = \frac{-b+/-\sqrt{b ^ 2-4 (a) (c)} }{2(a)}

In this case we have:

a = 1\\b = 8\\c = 11

Substituting in the quadratic formula we have:

See attached image

Answer:

Option B

8 0
3 years ago
Read 2 more answers
last week, Jim worked h hours and earned $9 per hour. if he earned a total of $405, which equation can be used to find out how m
ad-work [718]
I hope this helps you




if he can earn $9 per hour


$405 ? hours




?=405/9



?=45 hours he worked
8 0
3 years ago
F(x) = 9x + 3<br>g(x) = 3x + 1<br>Find:<br>(f/g)(x)​
igomit [66]

Answer:

<h2>(f/g)(x) = 3</h2>

Step-by-step explanation:

f(x) = 9x + 3

g(x) = 3x + 1

To find (f/g)(x) divide f(x) by g(x)

That's

(f/g)(x) =  \frac{9x + 3}{3x + 1}

Factorize f(x)

f(x) = 9x + 3 = 3(3x + 1)

So we have

(f/g)(x) =  \frac{3(3x + 1)}{3x + 1}

Simplify

We have the final answer as

<h3>(f/g)(x) = 3</h3>

Hope this helps you

4 0
3 years ago
Solve the equation 12x+6y=24 for x
vlabodo [156]

Answer:

x=2-1/2y

Step-by-step explanation:

12x+6y=24

12x=24-6y

x=24/12-6/12y

x=2-1/2y

6 0
3 years ago
For U.S. GDP to double by 2056, it would need to increase, on average, by about _______ per year.
erastovalidia [21]
5’5% hope this helps!
6 0
3 years ago
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