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2 years ago

FSA Mathematics Practice Test Questions

Mathematics

1 answer:

Luda [366]2 years ago

8 0

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Brainliest would be nice

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Why are we teching hligh levels of math at lower grades

Oksanka [162]

Answer:

I have no idea

Step-by-step explanation:

people are weird

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2 years ago

The U.S. Census Bureau announced that the median sales price in 2014 for new homes was $282,800 and the mean sales price was $34

victus00 [196]

Answer:

a) 0.9964

b) 0.3040

Step-by-step explanation:

Given data:

standard deviation = $90,000

Mean sales price =$345,800

sample mean = $370,000

Total number of sample = 100

calculate z score for [/tex](\bar x = 370000)[/tex]

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{370000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.689

P(x<370000) = P(Z<2.689)

FROM STANDARD NORMAL DISTRIBUTION TABLE FOR Z P(Z<2.689) = 0.9964

calculate z score for (\bar x = 350000)

$z = \frac{\bar x - \mu}{\frac{\sigma}{\sqrt{n}}}$

$z = \frac{350000 - 345800}{\frac{90000}{\sqrt{100}}}$

z = 2.133

$P(350000 \leq \bar x \leq 365000) = P(0.467 \leq Z\leq 2.133) = P(Z\leq 2.133) - P(Z\leq 0.467)$

FROM NORMAL DISTRIBUTION TABLE Z VALUE FOR

$P(Z\leq 2.133) = 0.9836$

$P(Z\leq 0.467) = 0.6796$

SO, = 0.9836 - 0.6796 = 0.3040

4 0

2 years ago

I have to factor this expression 2x+2

Lunna [17]

The factor of this expression would be 2(x+1)

3 0

2 years ago

Read 2 more answers

When the original amount is less than the new amount, the percent of change is called a(n)

charle [14.2K]

<span>When the original amount is less than the new amount, the percent of change is called a percent of increase. The original amount is smaller than the new amount and this means that the amount has increased in the positive direction I hope that this answer has actually helped you.</span>

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2 years ago

David has been tasked with tracking the number of bagels sold (y) at freddy's 24-hour bagel shop from 12: 00 am (x= 0) to 12: 00

ICE Princess25 [194]

Step-by-step explanation:

let say he sold 5 bagels then he would sell 5 bagels

12-5=7 , b=7

replace in 12-5=7

b=12-s

8 0

2 years ago