Answer:
x = -2/15.
Step-by-step explanation:
Finding the second derivative:
f'(x) = 15x^2 +4x - 3
f"(x) = 30x + 4
30x + 4 = 0 for a point of inflection
x = -4/30 = -2/15
So 30x + 4 is negative up to x = -2/15 and positive thereafter.
So the curve passes from concave downward to concave upward at x = -2/15.
Answer:
5. Read below
6 . A
Step-by-step explanation:
6. Meaning 8 x 6 = 48
for 5 add the people that ate pasta and chicken.
Subtract that total from 270.
Answer:
Hala would have 10 candies, Ahmed would have 35, and Eman would have 45.
Step-by-step explanation:
if the candy is given out 2:7:9, add the numbers and devide. 90 ÷ 18 is five so multiply each number by 5 to get 10:35:45
Answer:
y = 5/8x + 12
Step-by-step explanation:
Slope = change in y/change in x
slope = 5/8
Using y = mx + b find b.
y = 5/8x + b
-2 = 5/8(-4) + b
b = 1/2
y = 5/8x + 12
<em>good luck, i hope this helps :)</em>
