4,335 Answered Questions for the topic College Algebra

College Algebra Algebra 2

04/09/20

How long will it take before they are 500 kilometers apart?
A train leaves Little Rock, Arkansas, and travels north at 60 kilometers per hour. Another train leaves at the same time and travels south at 65 kilometers per hour. How long will it take before... more
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College Algebra Algebra 2

04/09/20

How do I solve this problem?
If a hood range removes contaminants at a flow rate of F liters of air per second, then the percent P of contaminants that are also removed from the surrounding air can be modeled by P=1.16F+31.23,... more
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College Algebra Algebra 2

04/09/20

How much was invested?
An actor invested some money at 5% simple interest, and $41,000 more than four times the amount at 9%. The total annual interest earned from the investment was $35,260. How much did he invest at... more
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College Algebra

04/08/20

HELP ME PLEASE !
A teacher is constructing a test of 15 questions. She will use a test generator that has a pool of questions for each topic. TOPIC NUMBER # of Questions to Choose From Number of Questions... more
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College Algebra

04/08/20

College Algebra
help please Write a rule for the nth term of the geometric sequence if r = 5 and a4 = 375.an =
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College Algebra Algebra 1 Algebra 2 Precalculus

04/07/20

Finding and verifying an inverse
Find the inverse of f(x) and then verify your result using (𝑓 ° 𝑓^−1)(𝑥) = 𝑥 and (𝑓^−1 ° 𝑓)(𝑥) = 𝑥. F(x)=1/x-3
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College Algebra

04/07/20

College algebra

Determine whether the sequence is arithmetic, geometric or neither.1/9, 1/45, 1/225, 1/1125, 1/5625 ...If the sequence is geometric, what is the common ratio?
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College Algebra Math Algebra 2 Calculus

04/07/20

Solve using elimination, substitution or by graphing. Click question to see the system!
X2 + y = 8ex - y = 0
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College Algebra

04/07/20

n=3 4 and 5i are zeros; f(1)=-234
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College Algebra

04/06/20

Help Please!!!!!
A dice is rolled twice.  Match the description with its probability.       -       A.       B.       C.       D.       E.     Find the probability that the product of the two rolls is... more
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College Algebra

04/06/20

Speed and miles

Part 2: Police departments find it very useful to be able to approximate driving speeds in skidding accidents. If the road surface is wet concrete, the function S(x)= √10.5x is used, where S(x) is... more
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College Algebra

04/06/20

Area and perimeter

Part 1: Find the area and the perimeter of the rectangle with length 3√45 ft and height  √125 ft.
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College Algebra Math Algebra 1 Algebra 2

04/06/20

determine if this function is odd, even or NEITHER
is 2x^7-x^3+2 an even, odd or neither function?
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College Algebra Algebra 1 Algebra 2 Algebra

04/06/20

𝑃(𝑡) = 60𝑡+80 .05𝑡+1
80,000 fish are released into a lake. After t years, the population P(t) of fish (in thousands) is given by 𝑃(𝑡) = 60𝑡+80 .05𝑡+1 a. After how many years will the population of fish be 1100... more
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College Algebra Algebra 1 Algebra

04/06/20

find all zeroes
Find all zeros of the function f(x) = x^3 – 5x 2 – 4x + 20. Give exact values, not decimal approximations
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College Algebra Algebra 1 Algebra 2 Precalculus

04/06/20

Write the complete factored form

Write the complete factored form and expanded form of the polynomial with leading coefficient -3 and zeros 4, -2 and 2.
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College Algebra Algebra 1 Algebra 2 Precalculus

04/06/20

determine if -4 is a zero
Determine whether x = –4 is a zero of the polynomialf(x) = x^3 – 2x^2 – 5x + 6
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College Algebra Algebra 1 Algebra 2 Algebra

04/06/20

determine if function
. f(x) = 2x^7 – x^3 + 2 determine if function is odd or even or neither
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College Algebra Algebra 1 Algebra

04/06/20

what pressure has to be applied
The volume V of a gas varies inversely as the pressure P on it. If the volume is 250cm3 under pressure of 35kg/cm2 , what pressure has to be applied to have a volume of 175cm3?
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College Algebra Precalculus Trigonometry

04/06/20

Find b and c of the equation
Find b and c so that y= -12x^2 +bx+c has the vertex (-5,-8)
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College Algebra Math Algebra Quadratic Formula

04/06/20

please help by answering and showing work!
1. Use the vertex formula to find the vertex. Find all intercepts and then sketch. Dot in the line of symmetry.f(x) = x2 – 6x + 5Vertex: ( , ) y-intercept: ( , )x-intercepts: ( , ) , ( , )equation... more
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College Algebra Algebra 2

04/05/20

A car was valued at $36,000 in the year 1990.

The value depreciated to $15,000 by the year 2007. A) What was the annual rate of change between 1990 and 2007? r =  Round the rate of decrease to 4 decimal places.B) What is the correct answer to... more
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College Algebra Algebra 2

04/05/20

If f={(-2,3), (0,5), (-1,10), (-5,2)} then what is f(-2)
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College Algebra

04/05/20

HELPPP Im stuck on this question
The function f defined by the given equation is one-to-one on the given domain. Find f −1(x).f(x) = x2 − 3    (x ≤ 0)
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College Algebra

04/05/20

I invest $6100 with 3.1% interest compounded monthly. What’s my value in 7 years?

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