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skad [1K]
3 years ago
11

Which of the following are solution to the equation below check all that apply x^2+6x+9=20

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
6 0

Answer: There's no answer choices but the exact value is -3±2√5

Step-by-step explanation:

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Determine the value of the variable that makes the equation true. 12-b=12.5
dusya [7]

Answer:

B = -.5

Step-by-step explanation:

If B is negative is cancels out the prexisting negative making it positive.

6 0
3 years ago
Solving polynomial(2y-4)(3y+6)​
jeka57 [31]

Answer:

6y² - 24

Step-by-step explanation:

Expand. Follow FOIL method. FOIL =

First

Outside

Inside

Last.

First, multiply the first term of each parenthesis:

2y * 3y = 6y²

Next, multiply the outside terms from both parenthesis:

2y * 6 = 12y

Then, multiply the inside terms from both parenthesis:

-4 * 3y = -12y

Finally, multiply the last terms of each parenthesis:

-4 * 6 = -24

Combine like terms:

6y² + 12y - 12y - 24

6y² + (12y - 12y) - 24

6y² - 24

6y² - 24 is your answer.

~

3 0
4 years ago
Read 2 more answers
CAN SOMEONE HELP ME PLEASE ASAP!?
zimovet [89]

Answer:

4:1

Step-by-step explanation:

5 0
2 years ago
What are the solutions for x when y is equal to 0 in the quadratic function y=x^2-8x
Elena L [17]
I would use the quadratic formula for this:

  x = -b ± √b² - 4ac over 2a
  x = 8 ± √64 - 4(1)(0) over 2(1)
  x = 8 ± √64 over 2
  x = 8 <span>± 8 over 2 [simplify]
  x = 4 </span><span>± 4
     x1 = 4 + 4    x2 = 4 - 4
     x1 = 8          x2 = 0


Thus, the solutions for x would be 0 and 8.</span>
5 0
3 years ago
ATCE Learning Center wants to make a net profit of $650,000 on the manual it sells to schools. The fixed costs for producing the
Elanso [62]
We are to solve for the price per unit. Let "x" be the price per unit.
The given values are the following:
 Variable Cost = 1250,000 *x
Fixed Cost = $780,000
Net Profit = $650,000
Variable cost per unit = $19.85

The solution is shown below:
$650,000 = 1,250,000*x - $780,000 - $1,250,000*$19.85
x = $26, 242, 500 / 1,250,000 units
x = $20.994

The price per unit is $20.99 and the answer is letter "D".
6 0
3 years ago
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