Answer:
<u>Yes</u><u>,</u><u> </u><u>it</u><u> </u><u>is</u><u> </u><u>right</u><u>.</u><u> </u>
<u>Using</u><u> </u><u>pythagoras</u><u> </u><u>theorum</u><u>,</u><u> </u><u>we</u><u> </u><u>found</u><u> </u><u>the</u><u> </u><u>side</u><u> </u><u>to</u><u> </u><u>be</u><u> </u><u>10</u><u>.</u><u> </u>
<u>So</u><u>,</u><u> </u><u>the</u><u> </u><u>perimeter</u><u> </u><u>is</u><u> </u><u>4</u><u> </u><u>times</u><u> </u><u>1</u><u>0</u><u>,</u><u> </u><u>i.e</u><u>.</u><u>,</u><u> </u><u>4</u><u>0</u>
Answer:
3.5 hours
Step-by-step explanation:
Lets establish two equations, one for Tyrone's and other for Tina's position on the route, which is 119 miles long. Lets take city A as the mile 0 and city B as mile 119.
So, when Tyrone stars he is in mile 0, and each hour that passes he moves 19 miles. If x is the number of hours since he left, we can say his position in terms of x is:
f(x)=19x
Tina starts in mile 119, each hour that passes she moves 15 miles. For example, after 1 hour she will be at mile 119-15=104, in the next hour in mile 89 and so on, subtracting 15 miles each hour. So, here position can be:
g(x) = 119 - 15x
As we want them to meet, it means their position is the same, being both functions equal for some x:
f(x) = g(x)
19x = 119 - 15x
Summing 15x in both sides:
19x + 15x = 119
34x = 119
Dividing both sides by 34:
x = 119/34 = 3.5
So, they meet after 3.5 hours.
33. -8 belongs to:
- Set of real numbers; all rational and irrational numbers
- Set of integers; positive and negative whole numbers
34. 14 belongs to:
- Set of natural numbers; all positive whole numbers
- Set of real numbers; all rational and irrational numbers
35. 9.23 belongs to:
- Set of real numbers; all rational and irrational numbers
36.
belongs to:
- Set of real numbers; all rational and irrational numbers
37. Zero (0) belongs to:
- Set of Integers; all positive and negative whole numbers
- Set of real numbers; all rational and irrational numbers
38. -1 belongs to:
- Set of integers; all positive and negative whole numbers
- Set of real numbers; all rational and irrational numbers
39. 1/2 belongs to:
- Set of real numbers; all rational and irrational numbers
40. 0.3 where 3 is recurring belongs to:
- Set of real numbers; all rational and irrational numbers
Answer:
x = 7/3
Step-by-step explanation:
3x + 7 = 14
Subtract 7 from both sides.
3x = 7
Divide both sides by 3.
x = 7/3