When an exponential function is given as
f(x)=ab^x, and
knowing that b^0=1, that means that
f(0)=ab^0=a value of function when x=0, or the initial value.
In the case of
f(x)=20.b^x, f(0)=20.b^0 = 20 (initial value)

If b=1.2, then the hourly growth rate is (1.2-1)=0.2=20%.
If b=1.85, then the hourly growth rate is (1.85-1)=0.85=85%.

4 0

3 years ago

The sale price for a computer is $450. the original price was first discounted by 25% and then was discounted an additional 20%.

pishuonlain [190]

Sale price = $450
original price = 25%y
dicount = +20%

solution = $450 × 45%
= $202.5
= $652.5

i am a mathematics teacher. if anything to ask please pm me

3 0

3 years ago

A rectangle has a length that is 4 more than 3 times the width. The area of the rectangle is 175. The width is 7. What is the le

g100num [7]

Answer:

length = 25

Step-by-step explanation:

7(x)=175

x=25

6 0

3 years ago