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Bess [88]
3 years ago
6

The school principal wants to know whether the students in the entire school prefer football or basketball. The principal draws

a random sample from the following groups: . All school teachers . All girls in each grade • All students in each grade • All students on the basketball team Which of the following groups best represents the population she should take a random sample from to get the best results for her survey? (1 point) 1) All school teachers 2) All girls in each grade 3) All students in each grade 4) All students on the basketball team​
Mathematics
1 answer:
stepan [7]3 years ago
5 0

Answer:

3

Step-by-step explanation:

because 3 includes everyone so it's not biased

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How do you simplify 7x×4y×2y^2
belka [17]
The answer is: 56xy³
_______________________________
Explanation:
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Find the "like terms"; which are: 
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"4y" and "2y<span>²"
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The remaining term is: "7x".
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The problem is a "multiplication problem" :
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7x * 4y * </span>2y² ; so start by multiplying the "like terms" :
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4y * 2y</span>² = 8y<span>³
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Then the remaining term is "7x";
        so, multiply that by our obtained value: "</span>8y³ " :
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7x * 8y³  = 56xy³ ; which is our answer:
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6 0
3 years ago
Han made some hot chocolate by mixing 4 cups of milk with 6 tablespoons of cocoa. A. How many tablespoons of cocoa per cup of mi
MaRussiya [10]

Answer: 1.5

Step-by-step explanation: you have to divide 6 by 4 and you get 1.5

3 0
2 years ago
If ABC =30o , what is the measure of its complement CBD
Fantom [35]

It would be 60 degrees because compliment means 90 degrees. In order to find m<CBD, you would need to subtract 30 degrees from 90 degrees which would equal 60 degrees. 90-30=60

5 0
3 years ago
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Usimov [2.4K]
Its 4 by the way cause it is
6 0
3 years ago
GIVEN PARALLELOGRAM ABCD, FIND THE LENGTHS AND ANGLES REQUIRED
Scrat [10]
Co-interior properties. 180 degrees = two co-interior angles.

180 = (2y+50) + (3y+40)
180 = 5y + 90
90 = 5y
/5     /5
18 = y

Angle 1: 2y + 50
              2(18) + 50
              36 + 50
              86

Angle 2: 3y + 40
              3(18) + 40
              54 + 40
              94

86 + 94 = 180 so it is true.

Now the sides.
On a parallelogram, 5x+2 and 8x-7 must be equal

5x + 2 = 8x - 7
        2 = 3x - 7
        9 = 3x
       /3    /3
        3 = x

Side 1: 5x + 2
            5(3) + 2
           15 + 2
           17

Side 2: 8x - 7
            8(3) - 7
            24 - 7
            17

Both sides are equal; 17.

Angle 1: 86
Angle 2: 94
Sides: 17
6 0
3 years ago
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