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3 years ago

HELP I'M BEING TIMED FOR THIS TEST!!!

Mathematics

1 answer:

ICE Princess25 [194]3 years ago

7 0

The correct answer is C
You must apply the power to both 5 and t

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Your Statistics group wanted to determine what percent of Dulles High School senior like pineapple on their pizza. You randomly

balu736 [363]

Answer:

The answer is "0.1040"

Step-by-step explanation:

Margin of error $=Z_{\frac{\alpha}{2}} \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}\\\\$

$=Z_{\frac{0.10}{2}} \sqrt{\frac{\frac{36}{60}(1-\frac{36}{60})}{60}}\\\\=1.645 \times 0.0632\\\\=0.1040\\\\$

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3 years ago

How do you simpllify x=41

HACTEHA [7]

Answer:

You have to figure out what x means

Step-by-step explanation:

bc i know math. a liitle bit and like to help.

6 0

3 years ago

The midpoint of the line segment from upper p 1p1 to upper p 2p2 is left parenthesis negative 1 comma 5 right parenthesis(−1,5).

aliya0001 [1]

The coordinates of the second point are (2, 4).

The midpoint formula is:
$m=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})$

Substituting our information, we have:

$(-1, 5)=(\frac{-4+x_2}{2},\frac{6+y_2}{2})$

This means that
$-1=\frac{-4+x_2}{2} \text{ and } 5=\frac{6+y_2}{2}$

Multiply both sides of both equations by 2 to cancel it:
$-1\times2=(\frac{-4+x_2}{2})\times2 \text { and } 5\times2=(\frac{6+y_2}{2})\times2
\\
\\-2=-4+x_2 \text { and } 10=6+y_2
\\-2+4=-4+x_2+4 \text { and } 10-6=6+y_2-6
\\2=x_2 \text{ and } 4=y_2$

This gives us our coordinates (2, 4)

3 0

3 years ago

Which linear function shows a direct variation?

tankabanditka [31]

Answer:

D. Graph D

Step-by-step explanation:D. Graph D

Step-by-step explanation:

We know that, 'Direct Variation or Directly Proportional' is relationship between two variables where one is a constant multiple of the other.

That is, if one variable changes, the other variable also changes in proportion to the first variable.

The general form of 'Direct Variation' is y = kx, where k is a constant i.e. it does not have a y-intercept.

Now, according to our options, we see that the figures of A,B,C are the graphs of the straight lines given by y =-2x+2 , y=2x+2, y=-2x+2 respectively.

Each of these three equations have y-intercept, therefore cannot be the equations of a direct proportion.

Now, in option D, the figure is the graph of straight line y = -x and has no y-intercept.

Hence, the linear function in Graph D shows a direct proportion.

4 0

4 years ago

What does y equal if y-2x=3

lapo4ka [179]

Y=2x+3 that the answer

6 0

3 years ago