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aliina [53]
3 years ago
5

Which expression represents the difference of 15 and s, increased by 4?

Mathematics
1 answer:
Alborosie3 years ago
3 0
The answer to this would be D
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Beatrice calculated the slope between two pairs of points.
kumpel [21]

Answer:

The answer in the procedure

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

step 1

Find the slope between (-3, -2) and (1, 0)

m=\frac{0+2}{1+3}

m=\frac{2}{4}=\frac{1}{2}

Find the equation of the line

y-y1=m(x-x1)

with m and the point (1,0)

substitute

y-0=\frac{1}{2}(x-1)

y=\frac{1}{2}x-\frac{1}{2}

step 2

Find the slope between (-2, -1) and (4, 2)

m=\frac{2+1}{4+2}

m=\frac{3}{6}=\frac{1}{2}

Find the equation of the line

y-y1=m(x-x1)

with m and the point (4,2)

substitute

y-2=\frac{1}{2}(x-4)

y=\frac{1}{2}x-2+2

y=\frac{1}{2}x

<em>Compare the equation of the two lines</em>

The two lines are parallel, because their slope is the same, but are different lines

therefore

Beatrice's conclusion is incorrect

All of these points are not on the same line, because are different parallel lines

The slope between (-2,-1) and (1,0) is equal to \frac{1}{2}

8 0
4 years ago
Read 2 more answers
A box is 60 cm long. which of these is closest to the length of this box in feet?
likoan [24]

Answer: the answer is 1.97

Step-by-step explanation:   hope that helps

6 0
3 years ago
Read 2 more answers
Please help me thank you and number them
Ipatiy [6.2K]
The answer would b be d 8 I think
7 0
3 years ago
Suppose the radius of the cylinder is decreasing at a rate of 2 cm/sec, but the volume is constant. How fast is the height chang
Sergio [31]

Answer:

Height is increasing at the rate of 14cm/s.

Step-by-step explanation:

Volume of cylinder = πR^2*H

dR/dT = -2cms (-ve sign indicated decreasing rate)

we need to find

dH/dT = ?

as the volume remain constant,  that means the cylinder is decreasing in area but its increasing in height.

dV/dT=0 (volume remain constant)

dV/dT= 2πR*dR/dT *H + πR^2*dH/dT = 0

2π*10*(-2)*35 + π*10*10 * dH/dT = 0

-1400π + 100πdH/dT = 0

dH/dT= 1400π/100π

dH/dT = 14 Cm/s

This means the height is increasing at the rate of 14cm/s.

8 0
3 years ago
What type of polygon is shown?
VARVARA [1.3K]
Its a convex hexagon
6 0
3 years ago
Read 2 more answers
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