Answer:
1 year.
Step-by-step explanation:
set up an expression for each in terms of x, where x is the number of years gone by.
for type a, it starts at 5 feet, and grows 9 inches per year.
so 5 + 9x = total height after x years
for type b, it starts at 8 feet and grows 6 inches per year, so 8 + 6x = total height after x years.
we want to find after how many years will they have the same so set them equal to each other and solve for x.
9x + 5 = 6x + 8
3x = 3
x = 1
£36.48.
1. Multiply 38 by 0.04 (4% in decimal) and you’ll get 1.52
2. Subtract 1.52 from 38 to get 36.48
Answer:
1. C. 4x + 40
2. a. - 2a + 10
3. d. 13x - 45
4. 2c-7d
5. b. -2z - 12
Step-by-step explanation:
1. 4(x+10) = 4x+4*10 = 4x+40
C
2. -2(a - 5) = -2*a -2*-5 = -2a+10
A
3. 10x + 3 (x-15)
10x + 3x -3*15
10x+3x-45
13x-45
D
4. -5(c+d) + 7c - 2d
-5c-5d + 7c-2d
-5c+7c -5d -2d
2c-7d
5. 2(2z + 4) - 2 (3z + 10)
2*2z +2*4 -2 *3z -2*10
4z+8 -6z-20
4z-6z+8-20
-2z-12
B
Answer:
The average rate of change is:
Step-by-step explanation:
The rational function given to us is;
The average rate of change of this function from x=0 to x=8 is the slope of the secant line connecting:
(0,f(0)) and (8,f(8))
Average rate of change =