9x^2 + 24 x + 16 = 0
(3x +4) (3x + 4) = 0
x=-4/3
are you sure part A doesn't have a negative somewhere?
9x^2+12x+12x+16 this works just double checking
b)
16x^2 - 25y^2 = 0
(4x-5y)(4x+5y)= 0
hope this helps
Answer:
this is
Step-by-step explanation:
number 9 hope it's right
Answer:
y = 15 - 2x
Step-by-step explanation:
The starting temp is 15, and we expect it to fall 2 degrees each night. We substitute x and y, y = total temp at the end of the examined time period, x = number of hours.
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ANSWER:

STEP-BY-STEP EXPLANATION:
The center of the circle would be the mean value between the end points, and we can calculate it like this:
Answer:
x=-7
Step-by-step explanation:
75+x+52+67+x=180
2x+194=180
2x=-14
x=-7