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Step2247 [10]
3 years ago
6

Given the following scores on a 30-point quiz, what is the frequency of a score of 27?

Mathematics
2 answers:
RSB [31]3 years ago
8 0
D.2 ; 27 shows up twice within the row of number so the frequency is 2.
kiruha [24]3 years ago
7 0

Answer:

2

Step-by-step explanation:

The frequency is how many times the score shows up in the data set

21,<u> 27</u>, 20, 29, 23, 21, 21, <u>27</u>, 26, 25

27 shows up 2 times so the frequency is 2

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3/4+5/36+7/144+.......+17/5184+19/8100<br><br>(a)0.95 (b)1 (c) 0.99 (d)0.98​
abruzzese [7]

Answer:

B) 1

Step-by-step explanation:

All I did was simplify the equation

1509/1600

(Decimal: 0.943125)

HOPE THIS HELPS!!!! :)

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4 0
3 years ago
Your grades on three exams are 80, 93, and 91. What grade do you need on the next exam to have an average of 90 on the four exam
Pani-rosa [81]

<u>Answer:</u>

96

<u>Step-by-step explanation:</u>

Let's assume that the marks needed in the next exam is x. Then if the average becomes 90,

\frac{80 + 93 + 91 + x}{4}= 90

Now we can simply solve for x:

⇒ \frac{264 + x}{4}= 90

⇒ 264 + x = 360            [Multiplying both sides by 4]

⇒ x = 360 - 264            [Subtracting 264 from both sides]

⇒ x = \bf96

Therefore, you need to score 96 in your next exam to have an average of 90 on the four exams.

8 0
2 years ago
Joe decides to take his six year old son to the planetarium. The price for the child's ticket is 5.75 dollars less than the pric
zaharov [31]
It would be x + 5.75 because the child ticket is 5.75 less than the adult ticket so to solve how to get the adult ticket you do the opposite
6 0
3 years ago
Read 2 more answers
Help again idk how to do this
creativ13 [48]

Answer:

it's,

( {5}^{3} ) ^{ - 4}  \\

Step-by-step explanation:

( {5}^{3} ) ^{ - 4}  \\  =  {5}^{ - 12}

5 0
3 years ago
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Which expression is positive?
Snezhnost [94]

Answer:

A

Step-by-step explanation:

the answer is A

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8 0
2 years ago
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