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ratelena [41]
2 years ago
10

A random sample of 40 seniors reveals that 10% of those sampled have assigned parking spaces in the high school's

Mathematics
2 answers:
fiasKO [112]2 years ago
6 0

the population is the 40 seniors who were randomly selected and the sample is all seniors

weqwewe [10]2 years ago
3 0

the population is all seniors and the sample is the 40 seniors who were randomly selected

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X/3 - 4 = (-20) what is the answer
melisa1 [442]

Answer:

x=-48

Step-by-step explanation:

Add 4 to both sides and then multiply both sides by 3.

3 0
3 years ago
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What is the distance between points A and B?
lys-0071 [83]

Answer:

6 units

Step-by-step explanation:

Just count

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2 years ago
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1. What is a perfect square? 2. What is the square root of 4x²? 3. What is the square root of 25? 4. Factor 4x² + 20x + 25.
Ulleksa [173]

Answer:

Step-by-step explanation:

1) A perfect square is a whole number which is a product of a smaller whole number and itself. Examples of perfect squares are

4(2 × 2)

9(3 × 3)

16(4 × 4)

25(5 × 5)

36(6 × 6)

2) Square root of 4x² is 2x(product of square root of 4 and square root of x²)

3) square of 25 is 5

4) 4x² + 20x + 25

The general formula for solving quadratic equations is expressed as

x = [- b ± √(b² - 4ac)]/2a

From the equation given,

a = 4

b = 20

c = 25

Therefore,

x = [- 20 ± √(20² - 4 × 4 × 25)]/2 × 4

x = [- 20 ± √(400 - 400)]/8

x = [- 20 ± 0]/8

x = - 20/8

x = - 2.5

3 0
3 years ago
Which expression is equivalent to the given expression? A. B. C. D.
Ronch [10]

Answer:

d. c. b. a.

Step-by-step explanation:

3 0
3 years ago
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Conver the equation y=2 to polar form. Then solve the resulting equation for r. <br> Thanks :)
maksim [4K]
This is something to memorize

y = r*sin(theta)

so if y = 2, then 

2 = r*sin(theta)

Divide both sides by sin(theta) to get

r = 2/sin(theta)
r = 2csc(theta)
8 0
3 years ago
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