Answer:
B.
Step-by-step explanation:
A positive times a negative number equals a negative number, but a negative times a negative equals a positive number
Answer:
The answer is d because 10-3 is 7
Answer:
depends on how much beer is left
Step-by-step explanation:
Given:
In a right angle triangle θ is an acute angle and 
.
To find:
The value of 
.
Solution:
In a right angle triangle,
We have,
It means the ratio of perpendicular to base is 3:5. Let 3x be the perpendicular and 5x be the base.
By using Pythagoras theorem,
In a right angle triangle,
Therefore, the value of is 
.
Amy: (3 pages/min)(x min) + 9 pages
Sam: (2 pages/min)(x min) + 47 pages
Equate these: 3x+9 = 2x + 47
Then x = 38. The two friends will have covered the same number of pages after 38 minutes. How many pages would that be? 3(38)+9 = 123 pages.
