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Doss [256]
3 years ago
7

84, 99, 88, 82, 95, 85

Mathematics
2 answers:
salantis [7]3 years ago
8 0
(84+99+88+82+95+84+98)/7 = 90 , so 98, or D. 
Ipatiy [6.2K]3 years ago
4 0

Answer:

Option: d is the correct answer.

               d. 98

Step-by-step explanation:

The scores of Myra's test are as follows:

               84, 99, 88, 82, 95, 85

Let 'x' be the minimum  score that is obtained by Myra in the last test so that the average is greater than 90 marks.

i.e.

\dfrac{84+99+88+82+95+85+x}{7}>90\\\\\\i.e.\\\\\\\dfrac{533+x}{7}>90\\\\\\i.e.\\\\\\533+x=90\times 7\\\\\\533+x>630\\\\\\x>630-533\\\\\\x>97

Hence, the minimum score has to be 98.

(   Since, the scores are in whole number )

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I need help on question 8 ....
Romashka-Z-Leto [24]

Answer:

8a - 6b

You have to substitute in you other numbers:

a = 4 and b = 3

Your new equation would be:

8(4) - 6(3)

Now solve:

8 x 4 = 32

6 x 3 = 18

New problem:

32 - 18

= 14

So your answer is 14.

Step-by-step explanation:

Hope this helps!

From your neighborhood softie :)

7 0
2 years ago
Kendra reads in Modern Dog Magazine that the average age of dogs currently alive is 4.8 years. To determine if this finding appl
SOVA2 [1]

Answer:

The true statement about Kendra's sample is:

b) Kendra's samples are precise but not accurate.

Step-by-step explanation:

a) Data and Calculations:

Average age of dogs currently alive = 4.8 years

Average ages of dogs in Kendra's sample

Week   Average Age (in years)

1                    3.7

2                   3.8

3                   4.2

4                   4.1

5                  3.9

6                  3.9

7                  4.0

Total         27.6

Mean = 3.9 (27.6/7)

b) Accuracy refers to how close Kendra's sample mean age of dogs is to the average age value as stated in the Modern Dog Magazine.  While the Magazine stated an average age of 4.8 years, Kendra's sample produced a mean of 3.9 years.  On the other hand, precision refers to how close Kendra's sample measurements are to each other.  With a mean of 3.9 years, the sample measurements are very close to each other.  Therefore, we can conclude that "Kendra's samples are precise but not accurate."

5 0
2 years ago
A 30-foot ladder is leaning against an office building. if the base of the ladder is
Lina20 [59]

Angle of elevation would be 66 degrees

4 0
2 years ago
Which is the adjacent side to the reference angle A?* ​
jeka94

Answer:

Side AB

Step-by-step explanation:

The adjacent side is the side where the right angle is on and its next to angle A.

5 0
3 years ago
Read 2 more answers
60,120,130 without a reminder​
sp2606 [1]

Step-by-step explanation:

what is the question. what am I to do with those random numbers without a question, I'm just writing all this because they said at least 20 characters so don't get offended but pls give a detailed question

3 0
1 year ago
Read 2 more answers
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