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4 years ago

Plz answer this and explain how

Mathematics

1 answer:

Dahasolnce [82]4 years ago

8 0

Answer:

Option H, π/3 and 2π/3

Step-by-step explanation:

sin x = sqrt(3) / 2

It happens at 60 degrees and 120 degrees. In radians, it is π/3 and 2π/3

Answer: Option H, π/3 and 2π/3

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40/16 or 2.5 meters per second.... Sorry I'm probably way too late

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3 years ago

How much is (+2) + (-12)

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2 years ago

Find the missing value here.

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3 years ago

A sphere and a cylinder have the same radius and height. The volume of the cylinder is 18 cm3

Minchanka [31]

Answer:

12 cm³

Step-by-step explanation:

Let's say the radius of the sphere and cylinder is r and the height is h. However, notice that the "height" of the sphere is the same thing as the diameter, which is 2r, so h = 2r.

The volume of a sphere is denoted by: $V=\frac{4}{3} \pi r^3$ , where r is the radius.

The volume of a cylinder is denoted by: $V=\pi r^2h$ , where r is the radius and h is the height. Plug in 2r for h and 18 for V:

$V=\pi r^2h$

$18=\pi r^2*2r=2\pi r^3$

$\pi r^3=18/2=9$

Now plug in 9 for πr³ in the volume formula for the sphere:

$V=\frac{4}{3} \pi r^3$

$V=\frac{4}{3} *9=12$

The volume of the sphere is 12 cm³.

4 0

3 years ago

What is the x-intercept of 3x – 4y = 242

Andreas93 [3]

Answer:

x=242/3

alternative form= 80 2/3, x=80.6

Step-by-step explanation:

3x-4y=242

substitute y = 0

3x-4x0=242

calculate the product

3x-0=242

remove 0

3x=242

divide both sides (by 3 in order to leave x by itself)

done

5 0

3 years ago