Answer:
If,

But 3^x ≠ 21875,if x is a whole number.
<h2>HOPE U UNDERSTOOD</h2><h3>THANKS★</h3><h3>Any doubts?COMMENT PLEASE</h3>
1.77 if you need more just tell me. have a nice day
Answer:
Step-by-step explanation:
Step 1: Add 4n to both sides.
n+4n=−4n−1+4n
5n=−1
Step 2: Divide both sides by 5.
5n
5
=
−1
5
n=
−1
5
Answer:
y = -½x + 4
Step-by-step explanation:
1 = -½[6] + b
-3
4 = b
2y + x = 4 →2y = -x + 4 >> y = -½x + 2 [parallel to the above equation]
Parallel lines have SIMILAR <em>RATE</em><em> </em><em>OF</em><em> </em><em>CHANGES</em><em> </em>[<em>SLOPES</em>].
I am joyous to assist you anytime.
**I have a video that explains how to find the y-intercept, Perpendicular Equations, and Parallel Equations. I encourage you to watch the video to gain alot more knowledge from it, so you can better understand the concept. It is the second longest.
Answer:
14.89% or 0.1489
Step-by-step explanation:
First, find the z-score for both 70 and 80 minutes and their corresponding percentile.

For X = 70 minutes:

This z-score is equivalent to the 7.445 th percentile, so the probability of a student finishing this exam in less than 70 minutes is 7.445%
or X = 80 minutes:

This z-score is equivalent to the 92.555 th percentile, so the probability of a student finishing this exam in more than 80 minutes is 100- 92.555 = 7.445%
Therefore, the probability (P) of a student finishing this exam in less than 70 minutes or more than 80 minutes is:
P = 7.445% + 7.445% = 14.89%