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3 years ago

PLEASE HELP!!!!!!! HOW LONG IS A PIECE OF STRING?

Mathematics

1 answer:

IrinaVladis [17]3 years ago

8 0

There is no specific amount.
Not all string are the same size.

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The measure of each exterior angle of a regular 30-gon is

dezoksy [38]

Answer:

12°

Step-by-step explanation:

So, for your 30-gon, the interior angles total up to (30-2) * 180 = 5040. Each interior angle is that total divided by the number of interior angles, or 5040/30 = 168º:

The measure of each exterior angle is the total divided by the number of angles, or 360/30 = 12º.

4 0

3 years ago

The sum of two complex numbers, where the real numbers do not equal zero, results in a sum of 34i. Which statement must be true

Ipatiy [6.2K]

Answer:

The complex numbers have opposite real numbers.

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4 years ago

Find the volume of the solid generated by revolving the region bounded by the lines and curves about the x-axis. y = x, y =1, x

liraira [26]

Answer:

The volume is: $V = \frac{\pi}{3}$ cubic units

Step-by-step explanation:

Volume of a solid:

The volume of a solid, given by the function f(x), over an interval between a and b, is given by:

$V = \pi \int_{a}^{b} (f(x))^2 dx$

y = x, y =1, x = 0

This means that the upper function is y = 1, and the lower function is y = x. So

$f(x) = (1 - x)$

The lower limit of integration is x = 0.

The upper limit is y = x when y = 1, so x = 1.

Then

$V = \pi \int_{a}^{b} (f(x))^2 dx$

$V = \pi \int_{0}^{1} (1-x)^2 dx$

$V = \pi \int_{0}^{1} (1-2x+x^2) dx$

$V = \pi (x-x^2+\frac{x^3}{3})|_{0}^{1} dx$

$V = \pi(1 - (1^2) + \frac{1^3}{3})$

$V = \frac{\pi}{3}$

8 0

3 years ago

11.MARTIAN FINDS A SHIRT ON SLAE FOR 10% OFF AT A DEPARTMENT STORE. THE ORIGINAL PRICE WAS $20.Martain must also pay 8.5% sales

Snowcat [4.5K]

A. Find 10% of $20, which is $2. Then subtract the sale 20-2, which is $18
B. Since you know the price without taxes is $18, you have to multiply 8.5% of 18, which is $1.53. $18.00 + $1.53= $19.53

So the answer is $19.53

Hope this helped

5 0

3 years ago

1 Write the equation of a line that is perpendicular to y-2x=3 y−2x=3

iVinArrow [24]

Answer:

lol

Step-by-step explanation:

5 0

3 years ago