Answer:
35i+13j
Step-by-step explanation:
Vector a = 9i+9j
Vector b = -4i+7j
We need to find the value of 3a-2b.
3a = 3(9i+9j) = 27i+27j
2b = 2(-4i+7j) = -8i+14j
3a-2b = 27i+27j-(-8i+14j)
= 27i+27j+8i-14j
= 35i+13j
Hence, the required vector is equal to 35i+13j.
Given a N quantity of numbers, the Geometric Mean is equal to the N-th root of product of the N numbers
In this case, we have two numbers, then we need to multiply them and take square root:
The answer is:
10√6
Rounded is Approximately 24.5
Answer:
$170
Step-by-step explanation:
Let's say that x represents the amount of hours, so therefore, x will be replaced by 3:
y = (40 * 3) + 50
So, solve inside the parentheses:
y = (40 * 3) + 50
y = 120 + 50
Solve:
y = 120 + 50
y = 170
So, a jet ski would cost $170 to rent for 3 hours
Hope this helps :)