<span>Look at the definition of multiplicative inverse. If two numbers are multiplicative inverses of each other, then by definition, their product will be equal to 1. And 1 is a positive number. If both numbers being multiplied are positive, then the result is positive. And of both numbers being multiplied are negative, then the result is still positive. But if one number is positive and the other is negative, then the result is negative. So if you want a positive result, then both numbers you're multiplying have to have the same sign. And since we want a result of 1 for multiplicative inverses and since 1 is positive, then the numbers being multiplied have to have the same sign.</span>
I believe its 3. But i think you should wait for someone else to answer cause I might be wrong.
Answer:
3 gallons at 3 dollars a piece
Step-by-step explanation:
2.25 •6=13.50
4.50•3=13.50
13.50+13.50= 27.00
36-27=9
9÷3=3
Answer:
Step-by-step explanation:
The solution of each question is self-explanatory.
<u>Used properties</u>
- Vertical angles are congruent
- Angle sum property of circle
- Central angle is same as intercepted arc measure
<h3>#8</h3>
- mED = mAB = mAC - mBC = 90° - 52° = 38°
<h3>#9</h3>
- mEA = mBCD = mBC + mCD = 52° + 90° = 142°
<h3>#10</h3>
- mBDC = 360° - mBC = 360° - 52° = 308°
This question is best answered by finding the least common multiple of both 45 and 20. If a scenario indicates every so many, it would be like listing the multiples. It can be harder to list the multiples of bigger numbers (45, 90, 135, 180 and 20, 40, 60, 80, 100, 120, 140, 160, 180), so another strategy is to use prime factorizations. The prime factorization of 45 is <em>3</em> x <em>3</em> x 5 and the prime factorization of 20 is <em>2</em> x <em>2</em> x 5. The numbers that are the same in both prime factorizations are part of your answer. All other numbers (the italicized ones) also become a factor in your final answer, so 5 x 3 x 3 x 2 x 2 = 180. This means 180 minutes later they both start again at the same time. So 3 hours from 9 am is 12 noon.
