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4 years ago

Easy 10 points and brainliest :)

Mathematics

2 answers:

Leya [2.2K]4 years ago

6 0

Answer:

Quadrant IV

Step-by-step explanation:

If x > 0 the we are in quadrants 1 or 4

If Y < 0 we are in quadrants 3 or 4

Since both are true, we are in quadrant 4

faust18 [17]4 years ago

3 0

Quadrant 2

x axis is left to right

y axis is up and down

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A line is drawn through (–7, 11) and (8, –9). The equation y – 11=-4/3 (x + 7) is written to represent the line. Which equations

marin [14]

Answer:

$y=-\frac{4}{3}x+\frac{5}{3}$

$4x+3y=5$

Step-by-step explanation:

we have

$y-11=-\frac{4}{3}(x+7)$ -----> equation of the line into point slope form

step 1

Find the equation of the line into slope intercept form

$y=mx+b$

where

m is the slope

b is the y-intercept (value of y when the value of x is equal to zero)

For x=0

$y-11=-\frac{4}{3}(0+7)$

$y=-\frac{28}{3}+11$

$y=\frac{5}{3}$

therefore

$b=\frac{5}{3}$

substitute

$y=-\frac{4}{3}x+\frac{5}{3}$ ----> equation of the line into slope intercept form

step 2

Find the equation of the line in standard form

$Ax+By=C$

we have

$y=-\frac{4}{3}x+\frac{5}{3}$

Multiply by 3 both sides

$3y=-4x+5$

$4x+3y=5$ ---> equation of the line in standard form

4 0

3 years ago

Read 2 more answers

A case of 24 pairs of the same kind of sport shoes cost a little more than $800. Explain whether $28 per pair with tax invluded

garik1379 [7]

Answer:

It is a good estimate for the shoes because 800 divided by 24 is

800 divided by 24 is 33.33. so $28 per pair plus tax is better than 33.33 plus tax.

7 0

3 years ago

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The length of a rectangle is 4 more than twice the width length. The perimeter is 28. What is the LENGTH?

o-na [289]

Answer:

10 $\frac{2}{3}$

Step-by-step explanation:

Let the width length be x.

Width length = x

Length = 2x + 4

Perimeter = width + length + width + length

= x + 2x + 4 + x + 2x + 4

= 6x + 8

6x + 8 = 28

6x = 28 - 8

= 20

x = 20 ÷ 6

x = 3 $\frac{1}{3}$

Length (2x + 4) = 2(3 $\frac{1}{3}$ ) + 4

= 6 $\frac{2}{3}$ + 4

= 10 $\frac{2}{3}$

3 0

3 years ago

Suppose the profit a honda dealership makes on the next 5 accords it sells are:564, 1,000, 848, 1,495, 1,348. calculate the stan

stepladder [879]

First we have to find the mean (average)
mean = (564 + 1000 + 848 + 1495 + 1348) / 5 = 5255 / 5 = 1051

now we subtract the mean from every data point, then square it
564 - 1051 = -487......-487^2 = 237169
1000 - 1051 = -51......-51^2 = 2601
848 - 1051 = -203......-203^2 = 41209
1495 - 1051 = 444......444^2 = 197136
1348 - 1051 = 297......297^2 = 88209

now find the mean of the results.....but know when ur dealing with a sample instead of the whole population, u divide by 1 number less...so instead of dividing by 5, u divide by 4.
(237169 + 2601 + 41209 + 197136 + 88209) / 4 = 566324 / 4 =
141581.....this is called ur variance

now take the square root of the variance and u have ur standard deviation
sqrt (141581) = 376.272 rounds to 376.27 <==

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4 years ago

Javier has a model of a cone with a radius of 3 inches and a height of 10 inches. Javier increased his model’s volume by doublin

statuscvo [17]

Answer:

$240 \pi\ in^{3}$