Functions
Solve the system of equations below by graphing
3x+2y=8
x+2y=4
(2,1)
Select all of the expressions are equivalent to 93/2
A. 33
B. 63A and C
Use the function f(x)=2x -3 to complete the table
x y
0
2
7
x y
0 -3
2 1
5 7
A total of 330 children and adults attended a school play. There were 21 times as many children in attendance as there were adults.
This situation is modeled by the given system of equations, where a represents the number of adults and c represents the number of children.
c=12a
a+c=330
How many children attended the play?
315
Which statistical measure would NOT changes when ever number in a data set is increased by 5
A. range
B. mean
c. mode
A. range
On a windy morning, a hot air balloon starts ascending and flying away from the top of a hill.
The altitude, h , in feet, of the balloon xx hours after starting its ascent from the hill can be modeled by the function
h(x)=-16x2+64x+80
When the balloon reach its maximum altitude, at what height is the maximum altitude obtained
144 ft
What two numbers have a sum of 49 and a difference of 25
37 and 12
Energy and mass are related by the formula E=mc2
solve the formula for m
m=E/c2
Which correctly factored form of the function f(x)=x2+2x-15 can be used to identify the zeros
A. f(x)=(2x+1)(x-3)
B. f(x)=(x-3)(x+5)
C.f(x) = (x+2)(x-3)
B
A ticket to a concert costs either $ 12 or $15. A total of 300 tickets are sold, and the total money collected is $4140 . The number of $12 tickets sold are
120
An expression is shown
(12s4-6s2+4s)+(6s2-4s+27)-(4s4+s2+12)
Which expression is equivalent to the given expression
A. 10s4-7s2-15
B. 14s3+7s2+15
C. 14s4-7s2+15
C