Answer:
Width of the rectangle = 15 inches
Length of the rectangle = 25 inches
Step-by-step explanation:
Let the width of the rectangle = k inches
So, the length of the rectangle = (2k -5) inches
Perimeter = 80 in
Perimeter of a rectangle = 2 (Length + Width)
⇒ 80 = 2(k + (2k -5)
or 80 = 6k - 10
⇒ 6k = 80 + 10 = 90
or k = 90 / 6
⇒ k = 15
So the width of the rectangle = k = 15 inches
And the length of the rectangle = 2k -5 = 2 x 25 - 5 = 25 inches
Answer: 1/250
Step-by-step explanation:
5^-3 × 2^-1
=> 1/5³ × 1/2
=> 1/125 × 1/2
=> 1/250
mark as brainly plss
A decay rate of 26.3% per minute means that for every minute that passes, there remains 73.7% of the amount of the substance available at the end of the previous minute.
If
is the starting amount, and
is the amount left after
minutes, then



and so on, such that

We have
grams at the start, so after 7 minutes we're left with

Given:
The function is:

To find:
The range of the given function.
Solution:
We have,

The range of secant inverse function is:

The range of the given function in interval notation is:
![Range=\left[0,\dfrac{\pi}{2}\right)\text{ and }\left( \dfrac{\pi}{2}, \pi\right ]](https://tex.z-dn.net/?f=Range%3D%5Cleft%5B0%2C%5Cdfrac%7B%5Cpi%7D%7B2%7D%5Cright%29%5Ctext%7B%20and%20%7D%5Cleft%28%20%5Cdfrac%7B%5Cpi%7D%7B2%7D%2C%20%5Cpi%5Cright%20%5D)
Therefore, the correct option is C.