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andreev551 [17]
3 years ago
10

Which statement is true? A. A sample statistic can never be equal to the population parameter. B. Point estimates are defined fo

r both samples and populations. C. To calculate a sample proportion, we need to know the population size. D. To calculate a point estimate, we need to know the sample size.
Mathematics
1 answer:
stich3 [128]3 years ago
7 0

Answer:

D

Step-by-step explanation:

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Olivia bought a dress for $120. The tax rate is 9%. What is the total amount Olivia paid for the dress?​
elixir [45]
I think she will pay $130.80
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3 years ago
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Find the area of the shape shown below.​
Tamiku [17]

Answer:

28 square units.

Step-by-step explanation:

Let us divide the shape into two rectangles and a right triangle. The resulting composite figure is attached.

As we see in the figure the area A_T of the triangle is

A_T= \frac{1}{2} (2)(4)=4\: units^2.

The area A_{r1} of the bigger rectangle is (it's actually a square )

A_{r1}=4*4=16\:units^2,

and the area of the smaller rectangle is

4*2 =8\:units^2.

Therefore, the total area A_{tot} of the shape is

A_{tot}= A_T+A_{r1}+A_{r2}

A_{tot}= 4\:units^2+16\:units^2+8\:units^2

\boxed{A_{tot}=28 \:units^2}

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3 years ago
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What is 94/100 in simplest form?
MrMuchimi
47/50 is the answer
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3 years ago
Write 320,400 in expanded form using exponents
Ivanshal [37]

Answer:

<em>(3*105 )+(2*104 )+(0*103) +(4*102 )+(0*101 )+(0*100)</em>

Step-by-step explanation:

(3*105 )

+(2*104 )

+(0*103)

+(4*102 )

+(0*101 )

+(0*100)

6 0
3 years ago
What are the steps I need to do to get the answer?
Margaret [11]

Answer:

B. 10.9

Step-by-step explanation:

Area of triangle= 1/2*24*h

∠N=90° ⇒ Area of triangle= 1/2*MN*ON

MN²= h²+(24-7)²

ON²= h²+7²

  • 24h=MN*ON
  • 24h= √h²+(24-7)²*√h²+7²
  • (24h)²=(h²+17²)(h²+7²)
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  • k²-238k+14161=0
  • k=119
  • h²=119
  • h=√119= 10.9

8 0
3 years ago
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