3,398 Answered Questions for the topic College Algebra

College Algebra

1d

The Cunninghams are moving across the country. Mr. Cunningham leaves 3.5 hours before Mrs. Cunningham. If he averages 55mph and she averages 65mph, how many hours will it take Mrs. Cunningham

The Cunninghams are moving across the country. Mr. Cunningham leaves 3.5 hours before Mrs. Cunningham. If he averages 55mph and she averages 75mph, how many hours will it take Mrs. Cunningham to... more
College Algebra

2d

College Algebra

If x varies directly as y, and x=40 when y=5, find x when y=7.
College Algebra Finite Math Business finance

3d

Finite math help please

A state Motor Vehicle Department requires learners to pass a written test on the motor vehicle laws of the state. The exam consists of twenty true-or-false questions, of which eighteen must be... more
College Algebra

5d

c(x)=105x+70000 r(x)=245x

College Algebra

6d

f ( x ) is a linear function. f ( 6 ) = − 1 and f ( 12 ) = 1 , Find the linear function. How do I find the y value and slope?

f ( x ) is a linear function. f ( 6 ) = − 1 and f ( 12 ) = 1 , Find the linear function. How do I find the y value and slope?
College Algebra

7d

Algebra of functions

Question: Let f(x)= x to the power of 2+3x and g (x)=2x-1. Find the following: (f+g) (x) (f-g) (3) Show your steps using the math type tool and explain your steps in words.
College Algebra

10d

Determine the intersection or union of sets A, B, and C as indicated,

given   A = {5, 10, 15, 20}   B = {25, 30, 35, 40}   C = {10, 20, 30, 40}.Find  A  U  C.
College Algebra Math Finite Math

10d

Let U = {3, 4, 5, 6, 7, 8, 9, 10, 11, 12},

Let U = {3, 4, 5, 6, 7, 8, 9, 10, 11, 12}, A = {3, 5, 7, 9, 11}, B = {4, 6, 8, 10, 12}, and C = {3, 4, 6, 7, 10, 11}.List the elements of each set. (Enter your answers using roster notation. Enter... more
College Algebra Mathematics Finite Math

10d

List the elements of each set.

Let U = {3, 4, 5, 6, 7, 8, 9, 10, 11, 12}, A = {3, 5, 7, 9, 11}, B = {4, 6, 8, 10, 12}, and C = {3, 4, 6, 7, 10, 11}.List the elements of each set. (Enter your answers using roster notation. Enter... more
College Algebra

11d

Eight less than twice a number

College Algebra Math Finite Math

11d

If n(A) = 9, n(A ∪ B) = 12, and n(B) = 8, then what is n(A ∩ B)?

If n(B) = 16, n(A ∪ B) = 21, and n(A ∩ B) = 6, find n(A).If n(A) = 9, n(A ∪ B) = 12, and n(B) = 8, then what is n(A ∩ B)?
College Algebra Math Finite Math

11d

Let A and B be subsets of a universal set U and suppose n(U) = 300, n(A) = 150, n(B) = 120, and n(A ∩ B) = 60. Compute:

Let A and B be subsets of a universal set U and suppose n(U) = 300, n(A) = 150, n(B) = 120, and n(A ∩ B) = 60. Compute:(a)     n(Ac ∩ B) (b)     n(Bc) (c)     n(Ac ∩ Bc)
College Algebra

12d

College algebra 1

Solve the quadratic equation by completing the square.x^2- 6x -5=0Choose the correct form and fill in the blanks with the correct numbers .Form:(x + )^2 = (x - )^2 = and solve the equationx=
College Algebra Algebra 2

17d

Give a third degree polynomial that has zeros of 3, 3i, and −3i, and has a value of −13 when x=2. Write the polynomial in standard form

The 3 zeros are given but how is this expressed in standard form? And how can I prove that the function has a value of -13?
College Algebra Math Algebra 1 Algebra 2

24d

The following function models the average typing speed S, in words per minute, of a student who has been typing for t months

The following function models the average typing speed S, in words per minute, of a student who has been typing for t months.S(t) = 4 +31 4ln(t + 1),    0 ≤ t ≤ 16(a) What was the student's average... more
College Algebra Math Algebra 1 Algebra 2

24d

If f is a one-to-one function and f(0) = 3, f(1) = 1, and f(2) = 2, find the following:

(a) f-1(1)f-1(1)=?(b) f-1(2)f-1(2)=?
College Algebra Math Algebra 1 Algebra 2

25d

Find f^-1(x) and state the restrictions

f(x)= 8x/x-2, x= is not equal to 2f-1(x)=?State any restrictions on the domain of f-1(x). x > 2 x>8 X= NOT EQUAL TO 8 X= NOT EQUAL TO 2 There are no restrictions on the domain
College Algebra Math Algebra 1 Algebra 2

25d

Please Find f^-1(x)

f(x)= 8x/x-2, x= is not equal to 2f-1(x)=?State any restrictions on the domain of f-1(x). x > 2 x>8 X= NOT EQUAL TO 8 X= NOT EQUAL TO 2 There are no restrictions on the domain
College Algebra Math Calculus Geometry

25d

Evaluate the exponential function for the given x-values.

h(x)= (1/3)x ; x=2 and x=-3h(2)=?h(-3)=?
College Algebra Math Algebra 1 Algebra 2

25d

If f is a one-to-one function and f(0) = 3, f(1) = 1, and f(2) = 2, find the following.

(a) f-1(1)f-1(1)=?(b) f-1(2)f-1(2)=?Show your work
College Algebra Math Algebra 1 Algebra 2

27d

Use a calculator to find the value of A. ( A= Pert) and fill in the question marks

P= 2,000r= 5%t= 4A= 2,000(?)0.2= 2,000(?)=?Because A represents money, apply the standard rules of rounding to round to the nearest hundredth.Thus, the balance in the account at the end of 4 years... more
College Algebra Math Algebra 1 Algebra 2

27d

find the inverse of the given notation and fill in the question marks.

x=1/5y+6x-? =1/5y+6-6x-? =1/5y5(x-? )= 5(1/5y)5(x)-5(?)=y5(x)-5(?)=y5x-?=yf-1(x)=?
College Algebra Math Algebra 1 Algebra 2

27d

Use a calculator to find the value of A. ( A= Pert)

P= 2,000r= 5%t= 4A= 2,000(?)0.2= 2,000(?)=?Because A represents money, apply the standard rules of rounding to round to the nearest hundredth.Thus, the balance in the account at the end of 4 years... more
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