Answer:
h = 7 + 6x
Step-by-step explanation:
Since we are trying to find the height of the tree, we put h on the left side of the equation. Since the tree is 7ft tall at the moment, we write 7ft on the right side of the equation. Knowing that the tree grows 6 inches each year (x) we write 6x on the right side of the equation.
Answer:
1. 7.1
2. 11.5
3. 24.2
Step-by-step explanation:
you use P.E.M.D.A.S. for all the equations.
so you do thr multiplication and then the addition
1. 2(1.8)+3.5= 3.6+3.5= 7.1
2. 2(4)+3.5= 8+3.5=11.5
3.2(6.9)+3.5= 13.8+3.5= 24.2
hope this helps
Answer:
8
Step-by-step explanation:
6(6)-20-32(1/4)
36-20-8
16-8
8
Answer:
<em>The solution is too long. So, I included them in the explanation</em>
Step-by-step explanation:
This question has missing details. However, I've corrected each question before solving them
Required: Determine the inverse
1:
Replace f(x) with y
Swap y & x
Divide through by 25
Replace y with f'(x)
2.
Replace g(x) with y
Swap y & x
Add 1 to both sides
Make y the subject
3:
Replace h(x) with y
Swap y & x
Add to both sides
Multiply through by -4
Divide through by 9
4:
Replace f(x) with y
Swap y with x
Take 9th root
Replace y with f'(x)
5:
Replace f(a) with y
Swap a with y
Subtract 8
Take cube root
Replace y with f'(a)
6:
Replace g(a) with y
Swap positions of y and a
Solve using quadratic formula:
; ;
becomes
Factorize
7:
Replace f(b) with y
Swap y and b
Open Brackets
Solve using quadratic formula:
; ;
becomes
Factorize:
Replace y with f'(b)
8:
Replace h(x) with y
Swap x and y
Cross Multiply
Subtract x from both sides:
Subtract 2y from both sides
Factorize:
Make y the subject
Replace y with h'(x)
9:
Replace h(c) with y
Swap positions of y and c
Square both sides
Subtract 2 from both sides
Make y the subject
10:
Replace f(x) with y
Swap positions of x and y
Cross Multiply
Subtract y from both sides
Add x to both sides
Factorize
Make y the subject
Replace y with f'(x)