Answer:
x = -6 x= -3
Step-by-step explanation:
f(x) = x^2+9x+18
Set equal to 0 to find the zeros
0 = x^2+9x+18
Factor, what numbers multiply to 18 and add to 9
6*3 =18
6+3=9
0= (x+6) (x+3)
Using the zero product property
x+6 =0 x+3 =0
x = -6 x= -3
15. -2
16. A. The pool was originally empty
Answer:
Step-by-step explanation:
<u>Use the property of 45 degree right triangles</u>
- c = a√2, where c- hypotenuse, a = legs
<u>Top diagram</u>
<u>Bottom diagram</u>
720 hour you do 24hour times 30day
Well due to my calculations Tom should have gotten 311.5 dollars last week.
40×7=280
7÷2=3.5
9×3.5=31.5
31.5+280=311.5
Or You could do this
(40×7)+(3.5×9)=311.5
