Mark M.

12/31/15

Food for thought: Need help with this story problem

Matt bought 2 cantaloupes and 8 pears at the local supermarket for a total of $38.20. Alberta bought 10 cantaloupes and 8 pears at the same store for a total of $50.20. If this is the case, how... more

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Other

12/31/15

How do I create a graph using linear equations?

Hello my name is Noah,I'm a senior in Algebra function and I have a project over break on creating a graph using at least 20 linear or parabolic functions based on the parent functions of Y=X and... more

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Calculus

12/31/15

Reverse function 10^x+5^x+1 ?

10^x+5^x+1

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Factoring Polynomials

12/30/15

Explain how a polynomial can have roots that are not complex conjugates

Question: The roots of (x-1)(x+i) = 0 are obviously 1, -i. These are not complex conjugates. How do you explain this? Note that 'i' represents the imaginary number i.

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Factoring Polynomials

12/30/15

Prove that 2x^4 + x^2 - x + 1 has no rational zeros.

I understand that the above polynomial has no rational roots, but I'm too sure on how to prove this. Originally I just tested P(2), P(1) and P(1/2), and none of them gave the answer of zero - thus... more

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Factoring Polynomials

12/30/15

If ax^3 - bx + c = 0 has a double root, find the relationship between a, b and c.

Given that the above equation has a double root (two equal roots), it is implied that there is a relationship between the coefficients of x^3 and x, as well as the constant (a, b and c). Note... more

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Ratios And Proportions

12/30/15

IF SUM OF a/band its reciprocal is 2 and a is not equal to 0,b is not equal to 0 then find the value of a cube+b cube/asquareb+ab square

IF THE SUM OF A/B AND ITS RECIPROCAL IS 2 AND A≠0,B≠0 THEN FIND THE VALUE OF A3+B3/A2+B+AB2

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Math Calculus

12/29/15

Evaluate the indefinite integral. (Remember to use ln(|u|) where appropriate.)

Evaluate the indefinite integral. (Remember to use ln(|u|) where appropriate.) ∫ dx/(tx+k) t≠0

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Math Calculus

12/29/15

Suppose that a volcano is erupting and readings of the rate r(t) at which solid materials are spewed into

Suppose that a volcano is erupting and readings of the rate r(t) at which solid materials are spewed into the atmosphere are given in the table. The time t is measured in seconds and the units for... more

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Math Calculus

12/28/15

Find f. f?''(x) = 20x^3 + 12x^2 + 6, f(0) = 3, f(1) = -1

Find f. f ''(x) = 20x^3 + 12x^2 + 6, f(0) = 3, f(1) = −1

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What Are The Answers?

12/28/15

Find all open intervals on which f(x)=x/x^2+x-2 is decreasing.

What are the answers? I know the answers ,but I don`t know how to attempt the problem to get them. What is the difference between a closed and an open interval for this problem? Thanks.

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Math Calculus

12/27/15

Find the number c that satisfies the conclusion of Rolle's Theorem.

Find the number c that satisfies the conclusion of Rolle's Theorem. f(x) = x^1/2 - x/7 [0, 49]

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Algerbra Word Problem Grade 10

12/27/15

pick a negitive number, then add 3, then divide by the original number. Add the reciprocal of this expression. The result is equal to 29/10. What is the origina

pick a negitive number, then add 3, then divide by the original number. Add the reciprocal of this expression. The result is equal to 29/10. What is the original number

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Answers •1

Math

12/27/15

Domain math problem

What is the domain of the 6th root of t^4-9

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Answers •2

Word Problems

12/27/15

Maths word problems

Rectangular floor measurements: Length= 9mWidth= 4.5'Toji is going to cover the floor with floor boards.Each floor board is 0.1 wide, and 1.5m long.Work out the smallest number of floor boards Toji... more

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Answer Asap

12/26/15

prove f(x,y)=(e^y-Ye^x)i+(xe^y-e^x)j is conservative field find potential function for this field

answer asap

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Math Calculus

12/26/15

If F(x) = f(xf(xf(x))), where f(1) = 5, f(5) = 6, f '(1) = 3, f '(5) = 4, and f '(6) = 5, find F '(1).

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Math

12/26/15

Suppose that f(5) = 1, f '(5) = 7, g(5) = -5, and g'(5) = 2. What is fg'(5), f/g'(5) and g/f'(5)

Suppose that f(5) = 1, f '(5) = 7, g(5) = −5, and g'(5) = 2. What is fg'(5), f/g'(5) and g/f'(5)

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Math Calculus

12/25/15

Find the values of a and b that make f continuous everywhere.

f(x) = (x2 − 4)/(x − 2) if x < 2 ax2 − bx + 3 if 2 ≤ x < 3 2x − a + b if x ≥ 3

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Math Calculus

12/25/15

Show that the following limit is true:

lim(x->0) x8 sin(1/x) = 0 I said we can't set it up lim(x->0) 0^8 and lim(x->0) sin(1/0) because that leaves us with something undefined However, since -1 ≤ sin(1/x) ≤ 1, we... more

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Equations

12/25/15

Question in maths

How can I solve 6 degrea equation?

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Linear

12/23/15

Linear Function

Write a rule for a linear function y=f (x), given that f (0) =-5 and f (-5) =-6. Write answers using fractions or integers. The function rule is f(x) =

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Calculus

12/23/15

What is the linear approximation to f(x) = 2cos x, near x = pi/2?

1. What is the linear approximation to f(x) = 2cos x, near x = pi/2? 2. What is the linear approximation to f(x) = 5 ln (1 + x)2 at (0, 0)? 3. What is the derivative of f(x) = ex ln... more

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Average Speed

12/21/15

Average rate

A car and a bus both completed a 240 mile trip. The car averaged 10mph faster than the bus and completed the trip in 48 minutes less time than the bus. Find the average rate in miles per hour of... more

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Trigonometry

12/21/15

5 sin theta + 12 cos theta. find all the value of theta

5 sinθ + 12 cosθ = 1. find all the value of θ

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Food for thought: Need help with this story problem

How do I create a graph using linear equations?

Reverse function 10^x+5^x+1 ?

Explain how a polynomial can have roots that are not complex conjugates

Prove that 2x^4 + x^2 - x + 1 has no rational zeros.

If ax^3 - bx + c = 0 has a double root, find the relationship between a, b and c.

IF SUM OF a/band its reciprocal is 2 and a is not equal to 0,b is not equal to 0 then find the value of a cube+b cube/asquareb+ab square

Evaluate the indefinite integral. (Remember to use ln(|u|) where appropriate.)

Suppose that a volcano is erupting and readings of the rate r(t) at which solid materials are spewed into

Find f. f?''(x) = 20x^3 + 12x^2 + 6, f(0) = 3, f(1) = -1

Find all open intervals on which f(x)=x/x^2+x-2 is decreasing.

Find the number c that satisfies the conclusion of Rolle's Theorem.

pick a negitive number, then add 3, then divide by the original number. Add the reciprocal of this expression. The result is equal to 29/10. What is the origina

Domain math problem

Maths word problems

prove f(x,y)=(e^y-Ye^x)i+(xe^y-e^x)j is conservative field find potential function for this field

If F(x) = f(xf(xf(x))), where f(1) = 5, f(5) = 6, f '(1) = 3, f '(5) = 4, and f '(6) = 5, find F '(1).

Suppose that f(5) = 1, f '(5) = 7, g(5) = -5, and g'(5) = 2. What is fg'(5), f/g'(5) and g/f'(5)

Find the values of a and b that make f continuous everywhere.

Show that the following limit is true:

Question in maths

Linear Function

What is the linear approximation to f(x) = 2cos x, near x = pi/2?

Average rate

5 sin theta + 12 cos theta. find all the value of theta

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