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ad-work [718]
3 years ago
8

Which is NOT TRUE of data sets? A) A measurable characteristic of a sample is called a statistic. B) A measurable characteristic

of a population is called a basis. C) A measurable characteristic of a population is called a parameter. D) A standard deviation is a measurable characteristic of a population
Mathematics
1 answer:
zheka24 [161]3 years ago
3 0
A) is wrong because a measurable characteristics is called a basic

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(3x+2)+(2x^2+3x-1)<br><br> Please answer ty:)
Paul [167]
Answer = 2x^2+6x+1

3x+2+2x^2+3x-1
3x+1+2x^2+3x
Now combine like terms
3x+1+2x^2+3x
6x+1+2x^2
Rearrange terms
6x+1+2x^2
2x^2+6x+1
4 0
2 years ago
How many lb of brand X sugar which
Dafna1 [17]

Answer:  <u>4 pounds</u> of brand X sugar

====================================================

Reason:

n = number of pounds of brand X sugar

5n = cost of buying those n pounds, at $5 per pound

Brand Y costs $2 per pound, and you buy 8 lbs of it, so that's another 2*8 = 16 dollars.

5n+16 = total cost of brand X and brand Y combined

n+8 = total amount of sugar bought, in pounds

3(n+8) = total cost because we buy n+8 pounds at $3 per pound

The 5n+16 and 3(n+8) represent the same total cost.

Set them equal to each other. Solve for n.

5n+16 = 3(n+8)

5n+16 = 3n+24

5n-3n = 24-16

2n = 8

n = 8/2

n = 4 pounds of brand X sugar are needed

-------------

Check:

n = 4

5n = 5*4 = 20 dollars spent on brand X alone

16 dollars spent on brand Y mentioned earlier

20+16 = 36 dollars spent total

n+8 = 4+8 = 12 pounds of both types of sugar brands combined

3*12 = 36 dollars spent on both types of sugar brands

The answer is confirmed.

--------------

Another way to verify:

5n+16 = 3(n+8)

5*4+16 = 3(4+8)

20+16 = 3(12)

36 = 36

6 0
2 years ago
I have attached a picture of the question.​
sleet_krkn [62]
Its same i think

100-40=60
130-70=60
8 0
2 years ago
1/8 times square root of eight =
Crazy boy [7]

Answer:

0.35355339059

Step-by-step explanation:

8 0
3 years ago
How do you solve 45 = 3 (x + 1) using the distributive property?
Damm [24]

Answer:

x=14

Step-by-step explanation:

45 = 3 (x + 1)

Distribute the 3 to both terms in the parentheses

45 = 3x +3

Subtract 3 from each side

45-3 = 3x+3-3

42 = 3x

Divide each side by 3

42/3 = 3x/3

14 =x

8 0
3 years ago
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