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Who cares?

I don't know.

It's makes more sense to find the hypoteneuse, first.

The length of the hypoteneuse is = Sqrt(12^2 + 5^2) = 13 inches

Thus, a square drawn on the hypoteneuse will have an area of 13^2 = 169 sq. inches

BTW......the side lengths of 5 - 12 - 13 are known as a "Pythagorean Triple." There are an infinite number of these "triples.'

Weight is a force. Force is mass*acceleration, so: weight = 5kg*5.7m/s² = 28.5N 

Simplifying the left side, we have

8.55 + M = 124/87     Subtract 8.55 from both sides

M = (124/87 - 8.55)     ≈ -7.125

The experimental probability of the spinner "landing in q"....also kwown as the empirical probabilty....is 4/15

The theoretical probability is just 3/15.......since we expect that the spinner will land in any area 1/5 of the time.....then it should land in each area an equal number of times (once) in any five spins.

The "theoretical" probability is what we expect to happen......the "experimental" probabilty is what actually does happen.

BTW.......as the number of spins increase to some "large number" the empirical probability tends toward the theoretical probabiity.

It depends upon which side you're missing

If it's the hypoteneuse (the side opposite the right angle), we just square each of the other two known sides, add these together,  and then take the square root of this sum....that's the hypoteneuse

If it's any other side, we square both of the other two known sides, and subtract the smaller square from the larger, and take the square root of that difference. That's the length of the missing side (called a "leg").

The side opposite the 30 degree angle will be (1/2) as long as the hypoteneuse ... (9ft)

The side opposite the 60 degree angle will be (√3/2)  times as long as the hypoteneuse =

18* √3/2 = (9√3) ft

So the perimeter is (18 + 9 + 9√3) = (27 + 9√3) = 9(3 + √3) ft.

If it's a half sphere and it's 15 ft, wide....the radius must be 7.5 ft.

The floor area is just the area of a circle with a radius of 7.5 ft. =

Floor Area = pi * (7.5)^2.......I'll let you evaluate that.....BTW...the answer is in square feet !!

The inside height of the igloo is also 7.5 ft.........if the exact center of the floor is the center of the half-sphere.....then the radius from that point to the top of the igloo is just 7.5 ft.....

Of course...if we want to be technically correct....we need to add the 8 inch thick ice block to obtain the "outside" height!!

or another magicians saying......A magician never reveals the secret behind the tricks....whats with the nobility talk anyway inside joke?????

can someone help me please? i need it now!!

 oh boy........ yeah dont want that ole australian type of dinasaur to get on me more than she already has lol  but read my forum again it says x usually is two UNLESS GIVEN A VALUE..... i know your old fossil but come on even that was in plain view!!!!.......

Using the sine inverse, we have

asin (31/42) ≈ 47.57°

Be aware that this might be a 47.57° angle in the second quadrant, i.e. ≈ 132.43°

5 565.83333 ive been on computers were it dont work a glitch if you will if this is the case heres your answer

Use the on-site calculator............I believe it's still working just fine.....

-3^2 = -(3)^2 = -9

Be careful, this isn't the same as (-3)^2 = (-3)(-3) = 9

In the first case, the exponent is applied only on the "3"

In the second case, it's applied on (-3)

Expanding, we have

-3a^2 -3ab + 15a - 8a + 8b +ab +3b^2 -7b       And combining like terms

-3a^2 +7a -2ab +3b^2 + b

3.75 grams of copper / 5 total grams =

.75 = 75%

We can use the sine function for this one.....

sine (30) = 9 / ramp length

ramp length = 9 / sine (30)

ramp length = 9 /(1/2)

ramp length = 18 ft.

We could have also used the 30 - 60 - 90 triangle, where the sides opposite these angles have the ratios...... 1 - √3 - 2

So the side opposite the 90 degree angle represents the ramp length and it is twice as long as the side opposite the 30 degree angle (9 ft) = 18 ft

Thank you for the compliment.

For the record, My name is not “Mr know-it-all”. He is on another forum.

I am “Someone Who Knows Everything”.

There are major differences in attitude and character between us. (I can elaborate on this if you wish).

It was intended as humorous hyperbole. (Though it really is true).

zegroes.......x might take on ANY value......we can't assume that it "usually" stands for "2"

Pay attention.....the "Fossil" knows  !!!!!

And, if you're not careful....you're going to get the "Dinosaur" involved....and you DON'T want THAT !!!!

Move the decimal point 15 places to the left....you'll have 14 zeroes and then 238......etc.

So, each year, the population was 98.9% as much as it was the year before. So we have

3000(.989)¹⁰ =

$${\mathtt{3\,000}}{\mathtt{\,\times\,}}{\left({\mathtt{0.989}}\right)}^{{\mathtt{10}}} = {\mathtt{2\,685.864\: \!943\: \!184\: \!540\: \!916\: \!2}}$$

About 2686 people

A = pi * r^2

A = pi * (8 yd)^2

A = pi * 64 yd^2

A = 64 * pi yd^2

r = 8yd is your answer

x usaually stands for 2 if not given a value