Answer:
Add 3 to both sides, so you will have
x^2 - 8x + 13 + 3 = 3
x^2 -8x + 16 = 3
And now the left side is a perfect square trinolmial: (x-4)^2.
Step-by-step explanation:
Hope this helps:)
<h2>
Answer:</h2><h2>
Misty needs 27.13 ounces of 72% acid and 57.87% of 25% acid solution.</h2>
Step-by-step explanation:
85 ounces of 40% acid solution = 85 (0.4) = 34
Also, x + y = 85 ... (1)
0.72x + 0.25y = 34
72x + 25y = 3400 ...(2)
multiply eq (1) by 25, we get 25x + 25y = 2125 ... (3)
subtracting eq(2) and (3), we get 47x = 1275
x = 27.13 substitute in eq(1), we get
y = 57.87
Misty needs 27.13 ounces of 72% acid and 57.87% of 25% acid solution.
132.55=5(.04m+2+.7+0.1(21.7))>>>m=66
Answer:
The degree equal to 11.
because 5 + 6 = 11
Just add 5 and 6 together
h = 9.2 cm
Solution:
Base of smaller triangle = 5 cm
Height of smaller triangle = 2.3 cm
Base of larger triangle = 15 cm + 5 cm = 20 cm
Height of larger triangle = h
Multiply by 20 on both sides.
9.2 = h
So that Ryan should have add 15 and 5 to get a denominator of 20 on the right sides of the first line. Doing so gives the correct value, h = 9.2 cm.