Answer:
-3(4+2n) multiply -3 by 4 and 2n
-12-6n
Answer:
Decrease of 63.5%.
Step-by-step explanation:
Exponential function:
An exponential function has the following format:
In which y(0) is the initial value and r is the rate of change, as a decimal. If r is positive, it is a increase. If it is negative, it is a decrease.
In this question:
We have that:
So
So a decrease of 63.5%.
Answer:
4 seconds.
Step-by-step explanation:
The function f(x)=-10(x)(x-4) ........ (1), represents the approximate height of a projectile launch on the ground into the air as a function of time in seconds x.
Now, we are asked that for how long from the launch does the projectile stays in the air.
Therefore, we have to solve the equation (1) making f(x) as zero.
Hence, 10x(x - 4) = 0
⇒ x = 0 or x = 4
(As x can not be zero since at x = 0 sec, the projectile was at the ground.}
Hence, x = 4 seconds.
Therefore, the projectile was in the air for 4 seconds. (Answer)
Answer:
x = 5.5
Step-by-step explanation:
so firstly you would takeaway 3 from both sides
then you would divide 11 by 2 which is 5.5
and that's your answer 5.5
14 = 3 + 2x
11 = 2x
x = 5.5
Answer:
1,080 sq ft
Step-by-step explanation:
shape can be broken into a 25 ft x 25 ft square and a 35 ft x 13 ft rectangle
(you get 35 by taking the difference of 60 and 25)
25 x 25 = 625
35 x 13 = 455
total = 1,080
