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belka [17]
3 years ago
6

Please Help...

Mathematics
2 answers:
kicyunya [14]3 years ago
4 0
The answer is C. To find the average or mean, you add up all the values, then divide by how many values there are. 76+99+86=261. 261/3=87. So, I looked at the options and did the math. 76+99+86+88=349. 349/4=87.25. When I used 90, I got 87.75. When I used 99, i got 90 total. So, C is your answer. Hope I helped!
lys-0071 [83]3 years ago
3 0
The answer is B. It's definitely not A nor C.
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1 2/3 diveid by 4/5?
Rina8888 [55]

Answer:

\frac{5}{3}

Step-by-step explanation:

If you would like me to explain let me know in the comments.

6 0
3 years ago
Read 2 more answers
Use the diagram to determine which statement is true
Dahasolnce [82]

The answer is d.

Finding area of ABCD :

  1. Find side length
  • side = √3² + 4²
  • side = 5

    2. Apply formula to find area

  • area = 5²
  • area = 25

Finding area of GHIA :

  • area = 4²
  • area - 16

Finding area of DEFG :

  • area = 3²
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Now, let's see whether is true.

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∴ Hence, it is proved √

7 0
1 year ago
Find the three arithmetic means between -5 and -25.
inn [45]
The answer you are looking for is: -15.
I hope this helps.
7 0
3 years ago
KNOWLEDGE CHECK: ALEKS
Dmitrij [34]

a and b: decreasing

b and c: constant

c and d: decreasing

d and e: increasing

5 0
3 years ago
In kite ABCD, AB = BC and CD = DA. AB = (3x + 4), BC = x + 8, CD = y + 7, and DA = 2y + 5, find the perimeter of the kite
lana [24]
3x + 4 = x+ 8   >  3x - x = 2x   >  2x + 4 = 8 >  8 - 4 = 4 > 2x / 2 crosses out > 4 / 2 = 2 > x=2
2y + 5 = y + 7 >  2y - y = y >  y+ 5 = 7 >  7-5= 2 > y=2 
 
the perimeter of the kite is 4

8 0
3 years ago
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