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Nookie1986 [14]
4 years ago
15

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 <==
5 0
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}

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its volumes is equal to the scale factor elevated to the cube

Let

z------> the scale factor

x-----> the volume of the larger cone

y-----> the volume of the original cone

z^{3}=\frac{x}{y}

In this problem we have

z=2 -----> scale factor

substitute

2^{3}=\frac{x}{y}

8=\frac{x}{y}

x=8y

That means-----> The volume of the larger cone is  8 times the volume of the original cone

Find the volume of the original cone

V=\frac{1}{3}\pi r^{2} h

we have

r=3\ in

h=10\ in

substitute

V=\frac{1}{3}\pi (3^{2})(10)=30 \pi\ in^{3}

therefore

The volume of the larger cone is equal to

8*30 \pi\ in^{3}=240 \pi\ in^{3}

3 0
3 years ago
Read 2 more answers
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