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3 years ago

Find the y intercept of the line y+2x-1=0

Mathematics

1 answer:

Anni [7]3 years ago

5 0

Answer:

Y intercept= 1

Step-by-step explanation:

First you need to put this in slope intercept form (y=mx+b) so heres the steps:

y+2x-1=0 (given)

y-1=-2x (subtract 2x from both sides)

y=-2x+1 (add 1 to both sides)

y=-2x+1 is the y=mx+b form

The y intercept is b so your answer is 1

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Choose an American Adult at random. The probability that you choose women is 0.25

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Answer: This is a statement. This is not a question.

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2 years ago

a basketball team played five games . in those games , the team won by 7 points , lost by 3 , won by 4, lost by 2 , and won by 9

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Step-by-step explanation:

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2 years ago

What is (4/5)x (2/3)please help me out

Vikentia [17]

Answer:

$\frac{8}{15}$

Step-by-step explanation:

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2 years ago

In order to determine the average price of hotel rooms in Atlanta, a sample of 64 hotels was selected. It was determined that th

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Answer:

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There is no sufficient evidence to show that the average room price is significantly different from $108.50

Step-by-step explanation:

From the question we are told that

The sample size is n = 64

The average price is $\= x = \$ 112$

The population standard deviation is $\sigma = \$ 16$

The level of significance is $\alpha = 0.05$

The population mean is $\mu = \$ 108.5$

The null hypothesis is $H_o : \mu = 108.50$

The alternative hypothesis is $H_a : \mu \ne 108.50$

Generally the test statistics is mathematically represented as

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

=> $z = \frac{112 - 108.50 }{ \frac{ 16}{\sqrt{64} } }$

=> $z = 1.75$

From the z table the area under the normal curve to the left corresponding to 1.75 is

$P( Z > 1.75) = 0.040059$

Generally p-value is mathematically represented as

$p-value = 2 * P( Z > 1.75)$

=> $p-value = 2 * 0.040059$

=> $p-value = 0.08012$

From the values obtained we see that $p-value > \alpha$ hence

The decision rule is

Fail to reject the null hypothesis

The conclusion is

There is no sufficient evidence to show that the average room price is significantly different from $108.50

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2 years ago

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kondaur [170]

A) 6
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C)12
D)18
E)24

Awnser is C

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2 years ago