Answer:
23
Step-by-step explanation:
By definition of dot-product
sum the corresponding products.
u * v = <9, 4> *<3, -1> = 9*3 + 4*(-1) = 27 -4 = 23
Answer:
The correct answer is b) 1100 adults and 1400 students.
Step-by-step explanation:
To find this, set up a system of equations in which x is the number of students who attend and y is the number of adults who attend.
First start by creating an equation for money made.
5x + 10y = 18,000
Now write an equation for the amount that attend.
x + y = 2,500
Now multiply the bottom equation by -5 and add the equations together.
-5x - 5y = -12,500
5x + 10y = 18,000
5y = 5,500
y = 1,100
Since this is the number of adults, we can plug into an original equation to find the number of students.
x + y = 2,500
x + 1,100 = 2,500
x = 1,400
Answer:
Part A would be C because divided 30 by 5 to get the unit rate.
Part B would be B
Answer:
0.1 * 10^-2
Step-by-step explanation:
Answer:
the answer is y = 3/4x - 9/2
