All Answers 358514 Answers

Your Textbook should tell you exactly when. Just apply yourself a bit and I'm sure you will find it on some page.

Nice Work! This is correct. Although your wording was a little bit confusing but still, great!!!!!!!!

To calculate the VOLUME of a cube , realize that  volume is given by Length x Width x Height     ( L x H x W)

However, for a CUBE   L = W = H    so the volume is give by

L^3       or     W^3      or     H^3

Not EXACTLY sure I understand  'from the horizon of the Earth'  , but I assume it is referring to a tangential line from the satellite to the earths surface.   In this case we have a RIGHT triangle with hypoteneuse equal to the distance we are looking for....

Pythagorean theorem  :    13200^2 + 4000^2 = d^2      d = 13792.75 miles

This 'd' is to the CENTER of the Earth....we must subtract the RADIUS to find the distance to the SURFACE
13792.75 - 4000 =  9792.75 Miles

2.5 R  /   (2 x pi )/360  radians/circle  = 143.23944degrees   = 143 Degrees 14 minutes  (and 22 seconds)

Because that is what you get when you factor it:

Factor the following:
a^3-b^3

Factor the difference of two cubes. a^3-b^3=(a-b) (a^2+a b+b^2):
Answer: |  (a-b) (a^2+a b+b^2)

Thank you both

Thank you!!

convert 2.5 radians to degrees, and express the answer to the nearest minute

2.5 Radians=[2.5 x 180] / pi=143.23945 degrees.

3.62²=3 x 62^2=3 x 3,844 =11,532

The amount (a) that a family gives to a charity varies directly  as its income (i).  Last year, the family earned $32,000 and gave $2560 to charity.  How much will they give if they make $42,000 this year?

2,560/32,000=.08 x 100 =8% percentage of their income they give to charity.

8% x 42,000 =$3,360 They sjould give this year.

2560/3200 = 0.8

0.8*42000 = 33600

The following values appear to work:

x=5, y=49, z=97

Alan: Please verify this. Thanks.

6578/2*5 = 16445

3.62² = 3.62 x 3.62 = 13.1044

Thank you Melody, that makes a lot more sense.

5.6 (+0.1) → 5.7 (+0.2) → 5.9 (+0.3) → 6.2 (+0.4) → 6.6 (+0.5) → 7.1 (+0.6) → 7.7 (+0.7) → 8.4 (+0.8) → 9.2

.

Perhaps the following will help:

.

The left hand side is imaginary, so why would you expect the right hand side to be real ?

volume of a rectangular prism (which a cube is) is length X width X height

1/2 * 25 = 25/2

25/2 =12 1/2

12 1/2= 12 + 1/2

12+1/2=12.5

Here are two "Repetends" of 1/97=

1/97=0.0103092783 5051546391 7525773195 8762886597 9381443298 9690721649 4845360824 7422680412 3711340206 185567.......starts repeating here. 0103 0927835051 5463917525 7731958762 8865979381 4432989690 7216494845 3608247422 6804123711 3402061855 67.....etc.

I don't know if they expect you to " calculate" manually, or some other way.

It's not supposed to be. It is a sticky topic.

Also, I'm pretty sure Melody (with 60,247 stars) knows what he/she is doing.