Answer:
Michael worked for 5.5 hours.
Step-by-step explanation:
Total money earned = $74.25
Money Earned in tips = $38.50
Cost per hour = $6.50
Let number of hours he worked be x.
We need to find total hours he worked.
It can be find by;
Total money he earned is equal to Cost per hour multiplied by number of hours he worked plus money earned in tips.
Hence;
Cost per hour × number of hours he worked + Money Earned in tips = Total money earned
Computing in mathematical form we get;
Hence Micheal worked for 5.5 hours.
Answer:
I think it would be a obtuse triangle.
Step-by-step explanation:
Considering the Triangle Inequality theorem, for sides to make a triangle to two smallest sides must have a greater sum then the longest. Now that we know its a triangle we must decided what type of triangle it is. You can rule out acute because of the 14. Now, I used the 3:4:5 right triangle rule, which states that a right triangle must a a ratio of 3:4:5. Again, I think the 14 causes the triangle to be obtuse.
Answer:
angle = 16°
Explanation:
Complementary angles are angles that add up to 90°
Assume that the angle that we are looking for is x.
Based on the definition of the complementary angles, the equation will be as follows:
x + 74 = 90
Now, we will simply solve for x as follows:
x = 90 - 74
x = 16°
Hope this helps :)
Answer:
180
Step-by-step explanation:
Answer:
They can choose the 2 volunteers in 28 different ways
Step-by-step explanation:
Well, as the research group has to choose 2 volunteers out of 8, this means that it doesn't matter the order in which they choose them as long as they are two.
In statistics this is considered a counting technique and is called combination.
The combination formula is:
where
is the set of elements
and
is the number of elements taken from n
Then and
We replace in the combination formula:
<em><u>This result means that Medical research group can choose the 2 volunteers in 28 different ways</u></em>