Answer:
16
Step-by-step explanation:
x^2-8x+k is a quadratic expression of the form ax^2 + bx + c. Here a = 1, b = -8 and c = k. Focus on x^2-8x and complete the square as follows: Take half of the coefficient of x (that is, take half of -8) and square the result:
(-4)^2 = 16; if we now write x^2-8x+ 16, we'll have the square of (x - 4): (x -4)^2.
Thus, k = 16 turns x^2-8x+k into a perfect square.
Answer:
9. C
10. C
11. C
Step-by-step explanation:
9.
simply, 
10.
the greatest divisor of 28 is 7, so:
28 + 7 = 35
11.
the greatest divisor of 15 is 5, so:
15 + 5 = 20
n = 20
the greatest divisor of 20 is 10, so:
20 + 10 = 30
Answer:
$2.46
Step-by-step explanation:
23+18 = 41
41 * 0.06 = 2.46
So, the answer you get is $2.46
Hope this helps!
Maybe brainliest?
9514 1404 393
Answer:
5.85 pints
Step-by-step explanation:
If 1/4 of the paint is white, the other 3/4 of the paint is blue.
3/4 × 7.8 pint = 5.85 pint
Andrea used 5.85 pints of blue paint.
