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beks73 [17]
3 years ago
11

Find the variance and standard deviation of the data. Round your answers to the

Mathematics
1 answer:
LenaWriter [7]3 years ago
6 0
83, 85, 89, 92, 95 it should be this
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Figure ABCD is a kite
Mars2501 [29]
The kite is symmetric about line segment BD.
Therefore
AB = BC
3x + 1 = 22
3x = 22 - 1 = 21
x = 21/3 = 7

Similarly,
AD = CD by symmetry
Therefore
4x = CD
4*7 = CD
28 = CD, the required line segment

Answer: 28
4 0
3 years ago
Read 2 more answers
Liling is a salesperson at a computer store she recurves a base salary of $2,300 per month and she receives a commission of 3% o
Harman [31]

Answer:

  • $3948

Step-by-step explanation:

<u>Total earning:</u>

  • Salary + commission + extended warrant fee
  • 2300 + 0.03*44000 + 41*8 =
  • 2300 + 1320 + 328 =
  • 3948
8 0
3 years ago
A sequence is defined recursively using the formula f(n + 1) = -0.5f(n). If the first term of the sequence is 120, what is f(5)?
PolarNik [594]

Answer: 7.5

Step-by-step explanation:

The given formula tells us that the next term f(n+1) of the sequence is -0.5 times the previous term f(n)

First term of the sequence is f(1) = 120

Second term of the sequence is f(2) = f(1+1) = -0.5 f(1) = -0.5 (120) = -60

Third term of the sequence is f(3) = f(2+1) = -0.5 f(2) = -0.5 (-60) = 30

Fourth term of the sequence is f(4) = f(3+1) = -0.5 f(3) = -0.5 (30) = -15

Fifth term of the sequence is f(5) = f(4+1) = -0.5 f(4) = -0.5 (-15) = <em>7.5</em>

3 0
4 years ago
Read 2 more answers
Lucas' mom is eight years older than twice his age. The sum of their ages is 77. How old are Lucas and his mom?
Rudiy27

Answer:

Age of Lucas = 23 years

Age of Lucas Mom = 54 Years

Step-by-step explanation:

In this question we have to find the age of Lucas and his Mom

Let the age of Lucas be x

According to given condition

Twice of his age 2 * x =2x

Eight years older means age + 8x

So

Age of his mom = Twice of his age + 8

                           = 2x + 8               .................(ii)

now according to second condition

Age of Lucas + Age of his mom = 77

Put the values in the condition above

x + (2x + 8) = 77

x + 2x + 8 =77

3x + 8 = 77

subtracting 8 from both sides

3x + 8 - 8 = 77 -8

3x = 69

Dividing both sides by 3

x = 69 / 3

x = 23 years

Age of Lucas = 23 years

Now from equation (i)

Age of Lucas Mom = 2(x) + 8

putting in the value we get

Age of Lucas Mom = 2 ( 23) + 8

                               =46 + 8

                               =54 Years

Age of Lucas Mom = 54 Years

3 0
3 years ago
Suppose you purchase a raffle ticket for $1.00. First prize is $5,000, second prize is $1,000, and third prize is $500. If 500 t
Keith_Richards [23]
You should expect to gain 12$
8 0
4 years ago
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