1
GIVE ME BRAINLIEST MY GUY PLZ
Answer:
<h2>x = -3</h2>
Step-by-step explanation:
<u>15 - 7x </u>= 9
4
-7x = 9(4) - 15
x = 21/-7
x = -3
proof:
<u>15 - 7(-3) </u>= 9
4
15 pencils - £1.20
£3.80 left
12 rulers - £3.60
20p left
2 pencils - 16p
17 pencils, 12 rulers
Step-by-step explanation:
if x-4 is a factor of 2x^3 + x^2- 26x - 40
then f(4) = 0
f(x) = 2x^3 + x^2- 26x - 40
f(4) = 2(4)^3 + (4)^2 - 26(4) - 40
f(4)= 2(64) + 16 - 104 - 40
f(4) = 128 + 16 - 104 - 40
f(4) = 0
hence factorize completely is the photo
Answer:
d. 2
Step-by-step explanation:
The average rate of change is found from ...
... (f(x2) -f(x1))/(x2 -x1) = (5 - 3)/(2 -1) = 2/1 = 2