All Answers 358110 Answers

thank you that's very helpful

i know thx btw

Two roads intersect at an angle of 120 degrees as shown on the right figure. Romeo’s mailbox is 600 m from the intersection. Juliet’s mailbox, on the other hand, is 476 m from the intersection. How far is romeo’s mailbox from juliet’s mailbox?

I don't see any illustration, but we can use the Law of Cosines to find the distance, d......

d^2  = 600^2 + 476^2  - 2(600)(476)cos(120)

d^2 = 872,176

d = about 933.9 m

Solve for x over the real numbers:
(2 x)/(2 x+3)-(2 x)/(2 x-3) = 1

Bring (2 x)/(2 x+3)-(2 x)/(2 x-3) together using the common denominator (2 x-3) (2 x+3):
-(12 x)/((2 x-3) (2 x+3)) = 1

Multiply both sides by (2 x-3) (2 x+3):
-12 x = (2 x-3) (2 x+3)

Expand out terms of the right hand side:
-12 x = 4 x^2-9

Subtract 4 x^2-9 from both sides:
-4 x^2-12 x+9 = 0

Divide both sides by -4:
x^2+3 x-9/4 = 0

Add 9/4 to both sides:
x^2+3 x = 9/4

Add 9/4 to both sides:
x^2+3 x+9/4 = 9/2

Write the left hand side as a square:
(x+3/2)^2 = 9/2

Take the square root of both sides:
x+3/2 = 3/sqrt(2) or x+3/2 = -3/sqrt(2)

Subtract 3/2 from both sides:
x = 3/sqrt(2)-3/2 or x+3/2 = -3/sqrt(2)

Subtract 3/2 from both sides:
Answer: |  x = 3/sqrt(2)-3/2               or                  x = -3/2-3/sqrt(2)

P.S. I changed your variable M into x for some technical reasons.

40 percent as a percentage, and 0.40 as a decimal

Hey G maybe you should solve this one on your own reason being the scenario has to come from you imagnation, you can make the system simple if you want. But just because someone tells you how to answer somethng doesn't mean you get the learning experience out of it.

Just remember to keep it simple and you'll be good.

While viewing a statue of Superman in the wax museum, kevin noticed that when he looked up to the top of the statue, the angle of elevation was 15 degrees and when he looked down at the statue’s base, the angle of depression was 20 degrees. If his eyes were 5 ft above the floor, how tall was the statue of superman.

We need to find out how far he was from the statue.....this is given by:

5 / tan(20)   = about 13.74 ft

And the total height =

5 + 13.74*tan(15)  = about 8.68 ft

I am closing this question.  You can hyperlink to the original question and answer it there. :)

You already asked this question here 

The inverse variation equation shows the relationship between wavelength in meters, x, and frequency, y. 
y=(3x10^8)/(x)

What is the wavelength for radio waves with frequency 3 × 10^9?

y=(3x10^8)/(x)

3x10^9=(3x10^8)/(x)

x=3x10^8/3x10^9

x=1/10 meters, or 10 centimeters-the wavelength of the radio waves.

\(f(x)={2x}^{2}\)

\(g(x)=4-2x\)

\(g(f(0))=4-2\times2\times{0}^{2}\)

\(g(f(0))=4-2\times2\times0\)

\(g(f(0))=4-4\times0\)

\(g(f(0))=4-0\)

\(g(f(0))=4\)

PLS ANSWER THEM!!

im good thanks for asking

Max can mow a lawn in 45 minutes. Jan takes twice as long to mow the same lawn. If they work together, how long will it take them to mow the lawn?

Max mows 1/45 of the lawn in one minute.

Jan mows 1/90 of the lawn in one minute.

1/45 + 1/90 =3/90=1/30 of the lawn can be mown by both of them in one minute.

Therefore, it will take them 30 minutes to mow the lawn together.

Why hello there! I'm HSC, I'm new here. Thank for asking how my day was, it was good except for a Calculus test that I took today. It was very tedious, though I pushed through. Anyways, welcome back!

What do you need help with in geometry?

Um... 2%? You stated that it was earned per month.

In order to add or subtract fractions the numerators have to be the same bfore you can add or subtract. The actual answer is x=9/10 or x=0.9.

57.6 million = 57,600,000

57,600,000 = 5.76 x 10^7

FUN FACT: I know Josh personally, he goes to my school as well. (Josh is the one who recorded Daniel and voiced the famous post as well).

45 minuets

Thank you so much - I know what I did wrong now.

I put the numbers in back to front and that is why I had -0.620 as opposed to 0.620.

I really appreciate all your help and thank you for your patience and for showing me the best way to work it out,