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2 years ago

PLEASE HELP ME

Mathematics

1 answer:

mafiozo [28]2 years ago

4 0

Answer:

1) SAT average divided by budget per student

Graduation rate divided by budget per student

2) No. The definitions have opposite results

Step-by-step explanation:

did it on khan academy

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Sound travels at a rate of 344 meters in 1 second. How many meters does it travel in 1 minute?

erma4kov [3.2K]

Answer:

2064 meters

Step-by-step explanation:

344*6=2064

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2 years ago

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310=-6.2f<br> f=??? so confused

Mariulka [41]

F=-50 as multiplying it by -6.2 would give you a positive 310

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n i g 5. When the mass of an object you determine which of the following I _ . . . - gazing the quantity of matter In the object

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The is A.) the quantity of mater

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2 years ago

Based on the Nielsen ratings, the local CBS affiliate claims its 11 p.m. newscast reaches 41% of the viewing audience in the are

Nastasia [14]

Answer:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

$z=\frac{0.36 -0.41}{\sqrt{\frac{0.41(1-0.41)}{100}}}=-1.017$

Step-by-step explanation:

Data given and notation

n=100 represent the random sample taken

$\hat p=0.36$ estimated proportion with the survey

$p_o=0.41$ is the value that we want to test

$\alpha$ represent the significance level

z would represent the statistic (variable of interest)

$p_v$ represent the p value (variable of interest)

Concepts and formulas to use

We need to conduct a hypothesis in order to test the claim that the true proportion is lower than 0.41.:

Null hypothesis: $p\geq 0.41$

Alternative hypothesis: $p < 0.41$

When we conduct a proportion test we need to use the z statistic, and the is given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

The One-Sample Proportion Test is used to assess whether a population proportion $\hat p$ is significantly different from a hypothesized value $p_o$ .

Calculate the statistic

Since we have all the info requires we can replace in formula (1) like this:

$z=\frac{0.36 -0.41}{\sqrt{\frac{0.41(1-0.41)}{100}}}=-1.017$

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3 years ago

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Point A lies on the circle and has an x-coordinate of –3. Which value could be the y-coordinate for point A? 2.5 2.8

vodka [1.7K]

Answer:

the other point could be 2.8

Step-by-step explanation:

in circle values of both x and are almost equal in magnitude

since 2.8 is closest to 3 i magnitude

hence 2.8 will be correct option

this point will lie in third coordinate

as third coordinate has points

(-x,y)

and coordinates of points lie on the circle are

(-3,2.8)

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2 years ago

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