Answer:
7.) 16.7
Step-by-step explanation:
7). First you have to find the length of the line with the triangle that is at a 90 angle with the longest side of the triangle
Using the pythagrorem theorem a² + b² = c²
4² + b² = 5²
b² = 5² - 4²
b² = 25 - 16
b² = 9
√b² =√9
b = 3
next you do the same thing to find the missing segment of the longest side
3² + b² = 13²
b² = 169 - 9
b² = 160
b = √160 or ≈ 12.7
12.7 + 4 = 16.7
so 16.7 is the length of that side
Answer:
1/4
Step-by-step explanation:
The number of kids who brought their lunches is 3/7 of 84.
3/7 of 84 = 3/7 * 84 = 3/7 * 84/1 = (3 * 84)/(7 * 1) = 252/7 = 36
36 kids brought their lunches.
9 of the 36 kids got a slice of pizza.
The fraction is 9/36 = 1/4
Answer: 1/4
976*7= 6,832
976 pounds is worth 6,832 African rands