Answer:
= 1/3
Step-by-step explanation:
= 
if f(x) = y, 
= x, so
= 3 since f(3) = 52
finding f'(3)
f'(x) = 3
f'(3) = 3
= 1/f'(x) = 1/3
Solution:
<u>Note that:</u>
<u>Using cross multiplication:</u>
- (3x)/20 = (4x + 2)/28
- => (3x) × 28 = (4x + 2) × 20
<u>Simplifying both sides:</u>
<u>Subtracting 80x both sides:</u>
- 84x = 80x + 40
- => 84x - 80x = 80x + 40 - 80x
<u>Simplify the LHS:</u>
- => 84x - 80x = 40
- => 4x = 40
- => x = 10
2:3:9......added together = 14
2/14 (500) = 1000/14 = 71.43
3/14 (500) = 1500/14 = 107.14
9/14 (500) = 4500/14 = 321.43
Answer:
False
Step-by-step explanation:
2x+7=30
2x=23
X= 23/2 or 11.5
X does not equal 3, therefore the statement is false
Answer:
x<_-2 ( x is less than or equal to -2)
Step-by-step explanation:
First remove opposites and collect like terms so it will be -4x+12+4x<_-8x-8x-20.
Then move them to be 12<_-16x-20.
Move -16x to the left and the 12 to the right to combine it with -20 to become -32.
You are now left with 16x<_-32.
Divide both sides by 16 to get x<_-2.
Hope this helped :) btw <_ is less than or equal to i just dont know how to put the sign on top of the underscore :/
