So so u would subtract bothe negaitives but two negative equal a positive so then it would then be-3+8
Answer:
31
Step-by-step explanation:
PEMDAS is Parentheses, Exponent, Multiplication, Addition, Subtraction
This is just the order you do the operations.
First, Parentheses.
Second, Exponents,
Third, Multiplication or Division
Last, Addition or Subtraction
So we have,
[6(20) + 3(15)] ÷ 5
We first look at Parentheses.
The first case is 6(20)
6(20) = 120
We have [120 + 3(15)]÷ 5
We solve 3(15) as its the next parentheses
3(15) = 45
We have [120 + 45] ÷ 5
Then we solve for [120 + 45] as it's in brackets.
[165] ÷ 5 = 31
The answer is 31.
Answer:
= 30.144 km²
Step-by-step explanation:
Area of a sector is given by the formula;
θ/360 × πr², where θ is the angle subtended by the arc to the center of the circle, and r is the radius.
Area = 54/360 × 3.14 × 8 × 8
= 30.144 km²