Ok so all you have to do is set SPR and QPR equal like this
4x+11=5x-4
and solve to get x=15
then substitute in 15 for x in both equations
4(15)+11 and 5(15)-4
both =71 and add them up to get SPQ=142.
The cumulative frequency of students who earned a score of 20 or lower on the quiz is option d) 68.
<h3>What is the frequency about?</h3>
The relative cumulative frequency of students in the question is seen as those who earned a score of 20 to be 0.68 or 68 %.
From the question, The cumulative frequency of students who earned a score of 20 or lower on the quiz is:
= 4+8+15+7
=34.
Total frequency is:
= 4+8+15+7+7+3+4+2
=50.
Therefore, the relative cumulative frequency is:
= 34/50
= 0.68
= 68%
Hence, The cumulative frequency of students who earned a score of 20 or lower on the quiz is option d) 68.
Learn more about cumulative frequency from
brainly.com/question/23895074
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Answer:
The answer is C 6 hours. I took the test and got it right. Have a great day
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
(1/x+2)-(1/x-3)=f(x)-g(x)
2-3=-1
-1=f(x)-g(x)
(f-g)×(x)=-1
(maybe im not so sure tho)
