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Goryan [66]
4 years ago
15

What is the average of 143, 98, and 128

Mathematics
1 answer:
asambeis [7]4 years ago
8 0
Average\ A=\frac{S}{N}\\\\A=\frac{143+98+128}{3}=\frac{369}{3}=123\\\\Average\ of\ these\ numbers\ is\ 123.
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Given: △CGF ,CG=GF=CF=and, KOPS is a square inside this triangle with one side on CF and its two vertices on CG and GF
shepuryov [24]

Answer:

  AKPOS/ACGF = 28√3 -48 ≈ 0.497423

Step-by-step explanation:

Let's assume the square is a unit square. Then the height of the triangle is ...

  1 +(√3)/2 = h

and half the base of the triangle is ...

  h/√3 = (√3)/3 +1/2 = b/2

The area of the triangle is the product of these:

  A = (1/2)bh

  = (2 +√3)/2 × (3 +2√3)/6

  = (6 +3√3 +4√3 +6)/12 = (12 +7√3)/12

So, the ratio of the area of the square to that of the triangle is the inverse of this, or ...

  (square area)/(triangle area) = 12/(12+7√3)

  (square area)/(triangle area) = 28√3 -48

8 0
3 years ago
Is -9, -4, 1 and 6 arithmetic
ra1l [238]

Answer:

Yes. It is an arithmetic sequence.

Step-by-step explanation:

The sequence would be add 5 every time.

-9 + 5 = -4

-4 + 5 = 1

1 + 5 = 6

8 0
3 years ago
Please help me answer this
lys-0071 [83]
No when you subtract the 2 balances, there is a difference of 33.34. 1201.1-38.34=1162.76
8 0
4 years ago
At Clement's Jr. High School, a student needs an 86 average to earn a B. Sue's average on
andriy [413]

Answer:

Sue must score 94 on the final test to earn a B.

Step-by-step explanation:

There are five tests in total.

Sue's average on the first four tests is 84.

If after the final test, she scores X, she will have a B on average of five tests.

We have the following equation:

86 = (4 × 84 + X)/5

<=> X = 5 × 86 - 4 × 84

=> X =  94

5 0
4 years ago
31&lt;9 and --3X = 4X = 15X = 12X = 11x = 18
JulsSmile [24]

Given:

\frac{3x}{4}

Find: values belong to the solution

Explanation:

\begin{gathered} \frac{3x}{4}

and

\begin{gathered} -\frac{x}{6}\ge-3 \\ -x\ge-18 \\ x\leq18 \end{gathered}

so those values are solution which is x<12

i.e; x=4 and x=11

5 0
1 year ago
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