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3 years ago

My guy help me plz thx yoi

Mathematics

1 answer:

gavmur [86]3 years ago

8 0

Answer:

A. For both Me and My sister it is going up by one, but my sister and I have a 2 year difference from each other, every time.

B. 10 years old

C. I know this because for every year old I am my sister would be 2 years old than me.

D. When you turned 16 your sister would have been 18 by then.

E. I know this because as the years keep going up the trend is still the same as I will always have a 2 year difference from my sister.

F. No you would not need to extend the table to figure out the answer as all you would have to do is take your age and add 2 to it to get your sisters age.

Step-by-step explanation:

It is a constant trend so whenever you want to figure out your sisters age in this problem you would just have to add 2 to you current age in order to find out how old she is.

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The mean waiting time at the drive-through of a fast food from the time the order is placed to the time the order is recieved is

Alexxandr [17]

Answer:

1.) No ;

2.) - 0.931

3.) 0.1785

Step-by-step explanation:

Given :

μ = 84.3 ; xbar = 81.9 ; s = 17.3

H0 : μ = 84.3

H1 : μ < 84.3

The test statistic :

(xbar - μ) ÷ (s/√(n))

(81.9 - 84.3) / (17.3/√45)

-2.4 / 2.5789317

= - 0.9306

= - 0.931

Using the test statistic, we could obtain the Pvalue : df = n - 1 ; df = 45 - 1 = 44

Using the Pvalue calculator :

Pvalue(-0.9306, 44) = 0.1785

Using α = 0.05

The Pvalue > α

Then we fail to reject H0; and conclude that there is no significant evidence to support the claim that the mean waiting time is less than 84.3

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2 years ago

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16 ÷ 12 = 1.33333.....
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3 years ago

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Write an equation in slope-intercept form for the line that passes through (4,-3) and is parallel to the line described by y=1/2

Marat540 [252]

Given:

The point, (4, -3)

The line,

$y=\frac{1}{2}x+5$

To find an equation in slope-intercept form for the line that passes through (4,-3) and is parallel to the given line:

The slope of the line is,

$m=\frac{1}{2}$

Since the given line is parallel to the new line, so the slope will be same for the both.

Using the point-slope formula,

$y-y_1=m(x-x_1)$

Substitute the point and slope we get,

$\begin{gathered} y-(-3)=\frac{1}{2}(x-4) \\ y+3=\frac{1}{2}x-2 \\ y=\frac{1}{2}x-2-3 \\ y=\frac{1}{2}x-5 \end{gathered}$

Hence, the equation in slope-intercept form for the line is,

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1 year ago