A rocket burns up at the rate of
tons/min after falling out of orbit into the atmosphere. If the rocket weighed
tons before reentry, express its weight was a function of the time t, in
minutes, of reentry. 3 5600
The weight of the rocket decreases at a ra
Solve.
7.4x 14.8 > 63.6 4.8x
First add 4.8x to both sides.
7.4x 14.8 > 63.6 4.8x
7.4x 14.8 4.8x > 63.6 4.8x 4.8x
12.2x 14.8 > 63.6
Subtract 14.8 from both sides.
12.2x 14.8 14.8 > 63.6 14.8
12.2x > 48.8
Divide by 12.2 on both sides.
The solution is x >
If x , find the function value .f (x)=7 1 f(3) The notation
means to replace x with in x and find the resulting function value. f(3) 3 f(x)=7
1 First, replace x with . 3 = f (3) 7 ( )1 3 Now find the resulting function value.
f(3) = 7 ( )1 3 = 211 Multipl
Let x the number of coachclass seats and y the number of firstclass seats.
Translating the first statement into an equation:= = x y + = 126
Translating the second statement into an equation: x y = 9 +6
Now you have a system of equations.
Since a variable
Find the domain and range of the given function. f(x)=x+16
First find the domain of the given function. The domain of the function is the comple
te set of possible values of the independent variable of the given function.
Note that the function f(x) is de
Find the domain and range of the given function.
y= I x17 I
First find the domain of the given function. The domain of the function is the comple
te set of possible values of the independent variable of the given function.
Note that the function is define
Find the measure of the least positive angle that is coterminal with the angle given.
Then find the measure of the negative angle
that is nearest to and is coterminal with the angle of 99
Remember, coterminal angles differ by a multiple of 360
These multi
Three vertices of a rectangle are ( 3,5), (4,5), and (4,2).
What are the coordinates of the fourth vertex?
First, plot all three points on the rectangular coordinate system and connect them w
ith straightline segments. Let (3,5) be the point A, (4,5) be t
Evaluate the function at the given values of the independent variable and simplify.
f(r)= +11 r+4
a. b. c. f (4) f(45) f(x4)
If an equation in r and y gives one and only one value of y for each value of
r, then the variable y is a function of the variable
Plot the given points and then join these points, in the order given, by straightline segments. Name the geometric figure formed.
A (1,3), B(4,3), C(4,5), D(1,5) ,
First, locate the point on the rectangular coordinate system.
The coordinates mean that the
The World War 2
Memorial
Kelsey Walton and Victor Strauss
Design of the
Memorial
The memorial design
creates a special place
within the vast openness of
the National Mall to
commemorate the sacrifice
and celebrate the victory of
WWII, yet remains
respectf
The problem in the math problem 1/3+1/5 = 8/15. This problem stated that we are trying to
solve the problem of 1/3 + 1/5. This is an important to be able to solve, because it can be used
to solve many problems of everyday life. To solve this problem, the
Q Practice Midterm
Online 220
This is a practice midterm to help you prepare for the face-to-face midterm and it is not for a grade. The
Hawkes system was used to create this practice and the Hawkes system was used to create the face-to-face
midterm. That
Idalia Myers
Bria Abdu
HSC 235
Health Planning Document Description
1. The designated audience for the health concept is teens from ages 13-19
2. The topic being addressed is the use misuse and abuse of prescription drugs
3. The student will therefore be
Section 4.2 cont.
Formulas for Compound Interest
For n compounding periods per year:
For continuous compounding:
A=
P=
t=
r=
n=
Find the future value and interest earned if $2500 is invested for 5 years at 6% compounded quarterly.
Find the future value an
Sect 3.1 cont.
Assume that the revenue, R, for a certain product is determined by the following equation:
a.) Find the number of units, x, that produces a maximum revenue.
b.) Find the maximum revenue.
A ball is projected directly upward from an initial h
Exam 3 Review (Ch 5, 6, 7)
Name: _
1. The following data represents the number of days to maturity for short-term investments.
53
Using four classes, draw a frequency histogram or relative frequency histogram.
Create a stem-and-leaf plot of this data.
Cal
138 Exam 2 - Practice
Graphing (non-calculator) Portion of Exam
1. Consider the following graph:
a. On what intervals (if any) is the graph
increasing?
decreasing?
constant? none
b. Is y a function of x? Explain your reasoning.
Yes because each x-value is
MATH 144 Spring 2012
Exam 1 Review
Name:
1. Find the following limits:
(a) lim (x2 4x + 2)
x 2
Solution: 2
x2 9
x3 x 3
(b) lim
Solution: 6
x2 3x + 10
x 1
x3 1
(c) lim
Solution: DNE
2. Use the graph of f (x) in problem 6 in section 9.1 of your textbook to