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3 years ago

PLA HELP WILL MARK BRAINLEST AND GIVE 100 points

Mathematics

1 answer:

Georgia [21]3 years ago

7 0

Answer:

B) measures of variability

Hope this helped :)

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Select True or False for each statement

adoni [48]

<span>False

</span>
<span>True.

glad to help out
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6 0

3 years ago

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Use the calculator to graph the function y = x3 – 4x. Approximately on which interval is the function decreasing?

xxTIMURxx [149]

Answer:

C) (–1.16, 1.16)

Step-by-step explanation:

I know because I took the test

4 0

2 years ago

What is the slope of the line that passes through the points (-20, 18) and (30, 14)?

RideAnS [48]

Gradient =

Change in Y
———————
Change in X

Change in Y is 18 - 14 = 4
Change in X is -20 - 30 = -50

Therefore the gradient is 4/-50 which is then simplified to - (2/25)

7 0

2 years ago

Find the equation for the line of best fit using the two points that are close to the line of best fit (2,70) and (4.5, 90)

kari74 [83]

Given:

Two points that are close to the line of best fit are (2,70) and (4.5, 90).

To find:

Th equation of best fit line using the given two points.

Solution:

We know that, if a line passes through the two points, then the equation of line is

$y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)$

Two points (2,70) and (4.5, 90) are close to the best fit line.

Consider the two points (2,70) and (4.5, 90). So, the equation of line is

$y-70=\dfrac{90-70}{4.5-2}(x-2)$

$y-70=\dfrac{20}{2.5}(x-2)$

$y-70=8(x-2)$

$y-70=8x-16$

Adding 70 on both sides, we get

$y=8x-16+70$

$y=8x+54$

Therefore, the equation of best fit line is $y=8x+54$ .

3 0

3 years ago

Tara’s jewelry box contains two gold bracelets and two silver bracelets. Tara randomly choose two bracelets. What is the probabi

yan [13]

Answer: well its 25% i think because if you take them each one all chances are 25% bacause bur it would be 50%/50% because to are the same but the chances of pulling the not that sames ones would also be a 50/50

I REALLY DONT KNOW IF IM RIGHT SO IM SORRY IF NOT IM DUMB

7 0

3 years ago

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