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3 years ago

Please help please ASAP

Mathematics

1 answer:

FrozenT [24]3 years ago

4 0

Answer:

PV = 6 and PT = 3

Hope it will help :) see pic ❤

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Dividing the polynomials by using long division

Andrew [12]

Answer:

x ) -x^2 + 8x ( -x + 8

-x^2

__________

0 + 8x

_________

4 0

3 years ago

(50 POINTS) (PLEASE ANSWER THE QUESTION, NOT JUST TRY AND TAKE MY POINTS, I NEED HELP ON THIS SO DO NOT ANSWER IF YOU DO NOT KNO

jarptica [38.1K]

Answer:

No, there is no proportional relationship

Step-by-step explanation:

The proportional relationship is:

y = kx, which is a special form of linear equation, with zero y-intercept

In the given case we have:

y = 4.5x + 10

This is a linear function but not proportional relationship because it has y-intercept, different than zero

8 0

3 years ago

Can someone help me pls?

il63 [147K]

Answer:

a, because a stand for alpha while b is beta

3 0

3 years ago

Consider the relationship between the number of bids an item on eBay received and the item's selling price. The following is a s

n200080 [17]

Answer:

Let's assume the following data:

Price in Dollars (X) 26 29 32 38 47

Number of Bids (Y) 12 13 15 16 18

For our case we have this:

n=10 $\sum x = 172, \sum y = 74, \sum xy = 2623, \sum x^2 =6194, \sum y^2 =1118$

$r=\frac{5(2623)-(172)(74)}{\sqrt{[5(6194) -(172)^2][5(1118) -(74)^2]}}=0.974$

So then the correlation coefficient would be r =0.974

Step-by-step explanation:

Previous concepts

The correlation coefficient is a "statistical measure that calculates the strength of the relationship between the relative movements of two variables". It's denoted by r and its always between -1 and 1.

Solution to the problem

And in order to calculate the correlation coefficient we can use this formula:

$r=\frac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{[n\sum x^2 -(\sum x)^2][n\sum y^2 -(\sum y)^2]}}$

Let's assume the following data

Price in Dollars (X) 26 29 32 38 47

Number of Bids (Y) 12 13 15 16 18

For our case we have this:

n=10 $\sum x = 172, \sum y = 74, \sum xy = 2623, \sum x^2 =6194, \sum y^2 =1118$

$r=\frac{5(2623)-(172)(74)}{\sqrt{[5(6194) -(172)^2][5(1118) -(74)^2]}}=0.974$

So then the correlation coefficient would be r =0.974

5 0

3 years ago

Which represents the polynomial written in standard form? 4m – 2m4 – 6m2 + 9

beks73 [17]

-2m^4 - 6m^2 +4m +4
standard form for polynomials is written with the highest degree first followed by second highest and so on from there.

4 0

3 years ago

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