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2 years ago

How can i solve it formula y= mx + b

Mathematics

1 answer:

Serjik [45]2 years ago

4 0

Answer:

y = 4/3x - 4

Step-by-step explanation:

you are given b

so y = mx -4

you can look at the graph and see the slope from there. like the y-intercept and the x-intercept

(0,-4) and (3,0)

slope formula is y2-y1/x2-x1

and so you do -4-0/0-3

-4/-3.

so your slope formula would be

y = 4/3x - 4

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3 years ago

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3 years ago

Doug’s family buys 7 postcards while on vacation. Each postcard costs 0.25$ including tax. How can Doug use the number line to f

larisa [96]

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2 years ago

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Verizon [17]

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2 years ago

Read 2 more answers

Need to find the volume. measurements in picture, please help.

o-na [289]

Answer:

V = 288.5 $yd^{3}$

Step-by-step explanation:

To find the volume of a cone, use this equation:

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

r = radius

h = height

We aren't given the height of the cone, just the length of the side. To find the height use the Pythagorean Theorem:

$a^{2}+ b^{2}= c^{2}$

The value of 12.1 yds is the hypotenuse and the radius is the value of one of the legs. So, set it up like this:

$a^{2}+5^{2} =12.1^{2}$

Now, solve:

$a^{2}+25= 146.41$ Distribute the square

$a^{2} = 121.41$ Subtract 25 from 146.41

$\sqrt{a^{2} }=\sqrt{121.41}$

a = 11.01862

So, the height is equal to 11.01862 yds.

Now, we can plug everything into the volume equation:

$V = \pi (5)^{2}\frac{11.01862}{3}$

Simplify (use calculator):

V = 288.5 $yd^{3}$

So, the volume of the cone is equal to 288.5 $yd^{3}$

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2 years ago