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Nostrana [21]
3 years ago
8

Write the Slope Intercept form equation for a line passing through (4,6) and (8,9) A .

Mathematics
1 answer:
Serggg [28]3 years ago
6 0

Answer:

y=3/4x +3

Step-by-step explanation:

Find the slope first.   y-y over x-x

Y: 9-6 =3

X 8-4 = 4

so the slope is 3/4

Now choose one of the ordered pairs to use to substitute to find the y intercept or "b" in y=mx + b

I chose 4,6 since the slope has a 4 in the denominator

Use y=mx + b

Y =6 from ordered pair    m/slope= 3/4   x= 4 from ordered pair and you are looking for b

6= 3/4 (4) + b

6= 12/4 or 3 + b  subtract 3 from both sides

3= b

equation is y=3/4x +3

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hoa [83]

Answer:

A=22.5\ \text{feet}^2

Step-by-step explanation:

We have,

Height of a cone is 12 feet

Volume of the cone is 90 feet

It is required to find the area of the base of the cone.

The base of a cone is circular in shape.

The formula used to find the volume of a cone is given by :

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

here, \pi r^2=A (area of base of cone)

V=\dfrac{1}{3}\times Ah\\\\A=\dfrac{3V}{h}\\\\A=\dfrac{3\times 90}{12}\\\\A=22.5\ \text{feet}^2

So, the area of the base of the cone is 22.5\ \text{feet}^2.

3 0
3 years ago
Simplify -4 1/6 - -6 1/3 Which of the following is correct?
leonid [27]

Answer:

its 2 1/6 (B)

Step-by-step explanation:

3 0
3 years ago
3x - 5y = -35 <br> please solve and show your work
scoray [572]
You use the formula y=mx+b, therefore you have to isolate the y
First you subtract 3x to both sides.
3x - 5y = -35
-3x -3x
Then it would be
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Then you divide -5 on both sides to isolate the y
-5y = -3x -35
/-5 /-5 /-5
Two negatives cancel out and make a positive so it would be
Y = 3/5x + 7
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8 0
2 years ago
A circle has a radius of 14 units. What is the area in square units of the circle in terms of π?
Snowcat [4.5K]
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14²= 196

196 x pi = 196pi

Area = 196pi units²
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2 years ago
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