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1 year ago

What is parallel to y=-2x+5(1,2)(1,-2)(-2,-7)(2,5)

Mathematics

1 answer:

kvasek [131]1 year ago

6 0

1) A parallel line has the same slope as this one y=-2x+5 whose slope is -2

So to find out which parallel line to y=-2x+5contains

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You are trying to estimate the average amount a family spends on food during a year. In the past the standard deviation of the a

svetoff [14.1K]

Answer:

$n=(\frac{2.58(1000)}{50})^2 =2662.56 \approx 2663$

So the answer for this case would be n=2663 rounded up to the nearest integer

Step-by-step explanation:

We have the following info:

$ME = 50$ margin of error desired

$\sigma = 1000$ the standard deviation for this case

The margin of error is given by this formula:

$ME=z_{\alpha/2}\frac{\sigma}{\sqrt{n}}$ (a)

And on this case we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:

$n=(\frac{z_{\alpha/2} \sigma}{ME})^2$ (b)

The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance is $\alpha=0.01$ . And for this case would be $z_{\alpha/2}=2.58$ , replacing into formula (b) we got:

$n=(\frac{2.58(1000)}{50})^2 =2662.56 \approx 2663$

So the answer for this case would be n=2663 rounded up to the nearest integer

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3 years ago

What number needs to be added to both sides of the equation to complete the square?

Doss [256]

Answer:

9/4

Step-by-step explanation:

(-3/2)^2=9/4

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3 years ago

What is the perimeter of the quadrilateral 9m 5m 7m 11m

Luda [366]

The perimeter is 32m add all sides to find perimeter

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3 years ago

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Solve the following inequality algebraically. -5|1 - 2x| + 6 =< -29

Blababa [14]

Answer:

x<3

Step-by-step explanation:

-5|1+2x|+6<-29

-5-10x+6<-29

-10x<-30

----- ----

-10 -10

x<3

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3 years ago

B{even number less than 50} is which set

Neko [114]

Answer:

finite set is this

Step-by-step explanation:

even number less than 50 is finite set

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3 years ago