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3 years ago

I need this ASAP!! calculate the rate of change on this graph

Mathematics

1 answer:

Vilka [71]3 years ago

8 0

Answer: The slope is 2

Step-by-step explanation: For questions like these, find 2 points on the graph that are on whole numbers, for example (10,60) and (20,80). Then use the formula y2-y1/x2-x1 to solve for the slope, which would be the same thing as rate of change. 80-60/20-10 which equals 2. The slope would be 2.

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Mark wrote the highest score he made on his new video game as the product of 70x6,000. Use the associative and commutative prope

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You need a caculater that is what you need tho

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3 years ago

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Can Someone please write a 6 to 15 essay really quick about finding the area of a shape or irregular shape I WILL GIVE YOU 30 PO

Varvara68 [4.7K]

Answer: the areas of irregular shapes can be find by calculating the areas. To find area of a figure which is a combination of rectangles and a squares, you have to calculate the area of each figure separately and then add them to find total area.

Step-by-step explanation:

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3 years ago

Solve for x. A) 3.0 B) 3.25 C) 3.5 D) 3.75

IceJOKER [234]

Answer: D) 3.75

Step-by-step explanation:

According to the Insersecting chords theorem, when you multiply the lengths of the segments of one of the chords in a circle, the product obtained is equal to the product of the segments of the other chord.

Based on this, you can find the value of "x" with:

$(5)(3)=(4)(x)\\15=4x$

Solve for "x" (Applying the Division property of equality, you can divide both sides of the equation by 4). Then:

$\frac{15}{4}=\frac{4x}{4}\\\\x=\frac{15}{4}\\\\x=3.75$

This value matches with the option D.

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3 years ago

Find all real solutions of the equation. ( 2 b + 4 ) 2 − 12 = 0

Simora [160]

Answer:

B = 2

Step-by-step explanation:

( 2 b + 4 ) 2 − 12 = 0

Distribute..

2b+4(2)-12=0

combine like terms

2b+8-12=0

2b-4=0

Now solve this simple 2 step equation...

2b-4=0

+4=+4 <- add 4 to both sides

----------

2b=4

/2 = /2 <- divede both sides by 2

-----------

B = 2

3 0

2 years ago

Read 2 more answers

Six different second-year medical students at Bellevue Hospital measured the blood pressure of the same person. The systolic re

ArbitrLikvidat [17]

Answer:

$Range = 149-131=18$

$s^2 =\frac{(131-139.5)^2 +(137-139.5)^2 +(138-139.5)^2 +(141-139.5)^2 +(141-139.5)^2 +(149-139.5)^2}{6-1}=35.1$ $s =\sqrt{35.1}=5.9$

B. Ideally, the standard deviation would be zero because all the measurements should be the same.

Step-by-step explanation:

For this case we have the following data:

131 137 138 141 141 149

For this case the range is defined as $Range = Max-Min$

And for our case we have $Range = 149-131=18$

First we need to calculate the average given by this formula:

$\bar X = \frac{\sum_{i=1}^n X_i}{n}=\frac{837}{6}=139.5$

We can calculate the sample variance with the following formula:

$s^2 = \frac{\sum_{i=1}^n (X_i -\bar x)^2}{n-1}$

And if we replace we got:

$s^2 =\frac{(131-139.5)^2 +(137-139.5)^2 +(138-139.5)^2 +(141-139.5)^2 +(141-139.5)^2 +(149-139.5)^2}{6-1}=35.1$

And the standard deviation is just the square root of the variance so then we got:

$s =\sqrt{35.1}=5.9$

If the subject's blood pressure remains constant and the medical students correctly apply the same measurement technique, what should be the value of the standard deviation?

For this case the variance and deviation should be 0 since we not evidence change then we not have variation. And for this case the best answer is:

B. Ideally, the standard deviation would be zero because all the measurements should be the same.

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4 years ago