Answer:
A 1/3 * -2/5 = -2/15
Step-by-step explanation:
1/3 * 2/5 = 2/15
A positive times a negative is a negative
B negative times a positive is a negative
C negative times a negative is a positive
D 1/3 *2/3 = 2/9
Answer: 2 solutions.
The given equation breaks down into these two equations
3x+12 = 18 and 3x+12 = -18
Basically 3x+12 equal to plus 18 and minus 18. This is due to the fact that something like |x| = 7 means x = 7 or x = -7, ie those x values are exactly seven units away from zero on the number line.
If you want to solve each equation, then
3x+12 = 18
3x = 18-12
3x = 6
x = 6/3
x = 2 is one solution
and
3x+12 = -18
3x = -18-12
3x = -30
x = -30/3
x = -10 is the other solution
For this case we can use the law of the sine to solve the problem.
We have then:

From here, we clear the value of x.
We have then:

Rewriting we have:
Answer:
The angle R is given by:
x = 68 degrees
option B
7. You have the equator's length of four planets, the distances are given in kilometers
8. Estimation for the Earth: 40.000 km. Jupiter: 400.000. These approximations come from the nearest whole number for each.
9. The relation is that if the Jupiter equator's length is divided by ten, you will get the Earth's equator length, which means that Jupiter's equator is ten times bigger than the earth.