The mean score of a college entrance test is 80; the standard deviation is 15. the scores are normally distributed. what percent
1 answer:
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Answer:
x=(log(5/4))/(log(4))
Step-by-step explanation:
Step-by-step explanation:
hey, hope this helps/ is right :))
The graph that represents the inequality has been shown in the attachment.
<h3>How to solve for the graph</h3>We have these equations
y ≤ −3x + 1
y ≤ x + 3
We remove the inequality sign from both of these equations
y = −3x + 1
y = x + 3
−3x + 1 = x + 3
such that
x = -0.5
we use this value for x in any of the equations
x + 3 = -0.5 + 3
= 2.5
the point of intersection is at 2.5, -0.5
we test for the origin. 0,0
3x + 1
= 3*0 + 1
= 1
for x + 3
0+3 = 3
This is 0≤1 and 0≤3
Hence the graph should be shaded to the origin.
Read more on a graph here: brainly.com/question/14030149
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