Answer:
2. 88, 3. 40, 4. 48, 5. 20
Step-by-step explanation:
first multiply÷, then calculate from left to right
2. 5 · 4² + (2 · 3 + 2) = 5 · 16 + 6 + 2 = 88
3. (4 + 3)² - 12 + 3 = 49 - 12 + 3 = 40
4. 64 ÷ 4 · 3 = 16 · 3 = 48
5. 3² - 4 + 5 · 3 = 9 - 4 + 15 = 20
9:8 is the equivalent ratio
Answer:
the area of a triangle = 19 km²
Step-by-step explanation:
area of a triangle = 1/2 b h
where b = 5km
h = 7.6 km
plugin values into the formula:
A = 1/2 (5) 7.6
A = 19 km²
therefore,
the area of a triangle = 19 km²
............................................................60 and 78
