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trapecia [35]
3 years ago
14

Type the correct answer in the box. Solve the given equation by completing the square. x^2+ 8x = 38 Fill in the values of a, b,

and c to complete the solutions ​
Mathematics
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer:

A=2

B=8

C=-38

X=2.8/X=-6.8

Step-by-step explanation:

You might be interested in
Y>= -5x + 8 what is m?​
Sonbull [250]

Answer:

The slope = -5

Step-by-step explanation:

y ≥ -5x + 8

Look at the problem as y = -5x + 8 and compare to the slope intercept form. The slope = -5

6 0
3 years ago
What are the real zeros of x^3+4x^2-9x-36
Katyanochek1 [597]

Answer:

x = -4\\x = -3\\x = 3

Step-by-step explanation:

To find the real zeros you must match the function to zero and factor the expression.

We have a polynomial of degree 3.

We try to group the terms to perform the factorization

x ^ 3 + 4x ^ 2-9x-36 = 0\\\\x ^ 2(x + 4) - 9(x + 4) = 0

Now we take (x + 4) as a common factor

(x + 4)(x ^ 2 -9) = 0

If we have an expression of the form (a ^ 2-b ^ 2) we know that this expression is equivalent to:

(a ^ 2-b ^ 2) = (a + b)(a-b)

In this case

a = x\\b = 3

So:

(x ^ 2 -9) = (x + 3)(x-3)

Finally:

x ^ 3 + 4x ^ 2-9x-36 = (x + 4)(x + 3)(x-3) = 0

The solutions are:

x = -4\\x = -3\\x = 3

6 0
3 years ago
please only answer if you know the correct answer and answer all question please please please please please
chubhunter [2.5K]

Answer:

Part A: B) 3

Part B: $40

4. -1

7. 5x + 6y

8. Part A: y = 20x

8. Part B: $300

9. e > 12000 pounds

Step-by-step explanation:

Part A: x = 5t + 5

20 = 5t +5

15 = 5t

t = 3

Part B: x = 5t + 5

x = 5(7) + 5

x = 35 +5

x = 40

4. 24 - 5^2

24 - (5*5)

24 - 25 = -1

7. 2x + 4y + 5 + 2y - 5 + 3x

2x + 3x = 5x

4y + 2y = 6y

5 + (-5) = 0

5x + 6y

8. Part A:

Total = y

Lawns = x

Amount = $20

so y = 20x

8. Part B:

y = 20x

y = 20(15)

y = 300

9. The elephant weighs more than 12000 pounds

Elephant = e

More than =  >

Pounds = 12000

e > 12000 pounds

7 0
3 years ago
Gabriela has dinner at a cafe and the cost of her meal is \$45.00$45.00dollar sign, 45. 00. Because of the service, she wants to
Sav [38]

Answer:

$51.75

Step-by-step explanation:

percentage of tip times cost of meal= tip

tip plus cost of meal is the formula

15%×$45.00=$6.75

$6.75+$45.00= $51.75

5 0
3 years ago
Combine like terms to simplify the expression:<br><br> 3.26d+9.75d-2.65
gogolik [260]
3.26d+9.75d-2.65 =13.01d−2.65



4 0
3 years ago
Read 2 more answers
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