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wariber [46]
3 years ago
5

74 increased by 3 times y

Mathematics
1 answer:
Doss [256]3 years ago
4 0
Because it was divided three times
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Please help 20 points!!!!!
skad [1K]

Three students want to estimate the mean backpack weight of their schoolmates. To do this, they each randomly chose 8 schoolmates and weighed their backpacks. Then as per the given sample data,

(a) The sample means of the backpacks are: 6.375,6.375,6.625

(b) Range of sample means: 0.25

(c)The true statement is: The closer the range of the sample means is to 0, the less confident they can be in their estimate.

For the first sample, mean= 6.375

For the second sample, mean= 6.375

For the third sample, mean= 6.625

Range of sample means=Maximum Mean- Minimum Mean

                                        = 6.625 - 6.375

                                        = 0.25

The students will estimate the average backpack weight of their classmates using sample means, the true statement is:

The closer the range of the sample means is to 0, the more confident they can be in their estimate.

Learn more about range here:

brainly.com/question/24326172

#SPJ1

6 0
1 year ago
6b.) Graph the given points C(-3, 2) and D(6, 2) and find the slope.<br> What is the slope?
White raven [17]
I think y=2 there both on the 2 y intercept straight from each Other
6 0
3 years ago
Round the number 95,498 to the ten thousands place value
dezoksy [38]
100,000 (sorry if I'm wrong)
8 0
3 years ago
Which statement best describes f(6) = 12?
Sergio039 [100]

Answer:

When the input is 6, the output must be 12.

Step-by-step explanation:

f(6) = 12

The input to the function is x which is 6 and the output is what f(6) equals which is 12

5 0
3 years ago
Read 2 more answers
What is an equation of the line that is perpendicular to −x+2y=4 and passes through the point (−2, 1) ?
Elza [17]

Answer:

y=-2x-3

Step-by-step explanation:

Since our equation is in standard form Ax+By=C we must first manipulate the equation so that we have it in the slope-intercept form such that y=mx+b.  Therefore:

-x+2y=4\\2y=x+4\\\\y=\frac{x+4}{2}\\\\y=\frac{1}{2}x+2

Therefore, our slope is 1/2 and our y-intercept is 2.  Now in order to determine a perpendicular line to the one stated above we must then get the negative inverse of our slope meaning \frac{1}{2}=-2 (negative reciprocal).  Now we must use the point slope formula:

y=m(x-x_1)+y_1

Where m is the slope, x1 is -2 and y1 is 1 (because of the ordered pair given). And so:

y=-2(x-(-2))+1\\\\y=-2(x+2)+1\\\\y=-2x-4+1\\\\y=-2x-3

Therefore, the line that is perpendicular to -x+2y=4 is y=-2x-3.


6 0
3 years ago
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