38 Answered Questions for the topic Pre Cal
Pre Cal
08/20/18
Determine the domain for the function. f(x)= square root x+3 over (x+8)(x-2)
please help me asap :)
Pre Cal
07/28/18
If COS theta = 2/3 what are all the possible angles
I need to know all the possible angles if cos theta = 2/3
Pre Cal Pre Calculus
03/10/18
You need 2 pounds of peaches in order to make peach ice cream. You bag of peaches weighs 19 ounces. How many pounds of peaches do you need to purchase?
recall their our 16 ounces in a pound
Pre Cal Pre Calculus
01/19/18
An architectural engineer is designing a parabolic dome that will be 200 feet in diameter with a maximum height of 50 feet
Find the equation of the cross sectional parábola of the dome
Pre Cal
01/17/18
F(×)= mx, then f(a +b) = f(a)+f(b) for all a an b
1 True 2 false 3not enough information or 4 none need steps please
Pre Cal
01/17/18
True/false If f is a linear function then f(r+s)= f(r)+f(s)
True false not enough information . Need steps please
Pre Cal
10/30/17
interest rate question
Suppose one bank account pays 7% annual interest compounded once per year, and a second bank account pays 7% annual interest compounded continuously. If both bank accounts start with the same...
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Pre Cal Math
10/27/17
Find all real numbers θ in [0, 2π] such that sec θ = −2.
I am not sure how to solve this problem even when looking at it's graph.
10/08/17
Is C=2pi(r) a power function?
Is C=2Πr an example of a power function? If so can you state the power and constant of variation, and state it in the form of f(x)=k*x^a?
Pre Cal Pre Calculus
09/28/17
F(x)=x^2+9 find the value of the function
I really want to understand what I am doing during class
Pre Cal
08/16/17
Word Problem
Roger can run one mile in 8 minutes. Jeff can run one mile in 6 minutes. If Jeff gives Roger a 1 minute head start, how long will it take before Jeff catches up to Roger? How far will each have run?
Pre Cal
08/16/17
Word Problem
A motorboat can maintain a constant speed of 40 miles per hour relative to the water. The boat makes a trip upstream to a certain point in 33 minutes; the return trip takes 22 minutes. What is the...
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Pre Cal
08/16/17
Word Problem
How many gallons of a90% antifreeze solution must be mixed with 6060 gallons of 20% antifreeze to get a mixture that is 80% antifreeze? Use the six-step method.
Pre Cal
08/16/17
Word Problem
How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 95% antifreeze?
Pre Cal
08/16/17
Word Problem
.7.23 Question Help The manager of a store that specializes in selling tea decides to experiment with a new blend. She will mix some Earl Grey tea that sells for $5 per pound with some Orange Pekoe...
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Pre Cal
07/29/17
Complete the general form of the equation using rectangular coordinates
Write the given equation using rectangular coordinates (X,Y)
r= (3)/(1-cos theta)
0=?
Pre Cal
07/20/17
((Sin pheta+ cos pheta)/(sin pheta))-((cos pheta-sin pheta)/(cos pheta))
Rewrite over a common denominator. write your answer in terms of sine/or cosine.
Pre Cal
07/20/17
(Cot a+ Csc B)/(tan a+ sinB) = cot a Csc B
use the receprocal identities to write the trignkmetric functions in the denominator of the left side.
add the fraction in the denominator of the previous step...(left side)
the fraction from...
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Pre Cal
07/20/17
(Cos theta) / (cos theta -sin theta)= (1/1-tan theta)
establish the identity.
write the left side as an equivalent expression with 1 in the numerator
Pre Cal Math Word Problem
12/19/16
amber worked 15 hours more than chance last month. If amber worked 6 hours for every 3 hour that chance worked how many hors did th each work
amber worked 15 hours more than chance last month. If amber worked 6 hours for every 3 hour that chance worked how many hors did th each work
Pre Cal
12/08/16
A piece of wire 10 m long is to be cut into two pieces.
A piece of wire 10 m long is to be cut into two pieces. One piece is to be bentinto a square and the other is to be bent into a circle. How should the wire be cut sothat the total area enclosed is...
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Pre Cal
12/04/16
what is the minimum possible product of two numbers whose difference is 44?
what is the minimum possible product of two numbers whose difference is 44?
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