Mark M.

02/02/15

The area of a sector

The area of a sector of a circle with a diameter 0f 8 cm is 16π/3 square cm. Find the measure of the central angle of the sector.

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Select The Solution For (f+g)(x)

02/02/15

select the solution for (f+g)(x)

f(x)=-6x-1 and g(x)=4x^2 select the solution for (f+g)(x)

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College Algebra Word Problem

02/02/15

Antifreeze is a compound added to water to reduce the freezing point of a mixture. In extreme cold (less than -35 F ) one car manufacturer recommends that a mixture of 65% antifreeze be used. How... more

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Word Problem

02/02/15

a solution contains 7% of salt. How much water should be added to 30 ounces of water to make a 2.1% solution?

Word problem

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Math Equations Pre Calculus Math Help For College

02/02/15

Find Equation of line AB, is A(2,4) and B(1,3). Then find the equation of perpendicular to line segment AB

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Applications

02/01/15

Kara's Custom Tees

Kara's Custom Tees experienced fixed costs of $200 and variable costs of $5 a shirt. Write an equation that can be used to determine the total expenses encountered by Kara's Custom Tees. Let x... more

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Math

02/01/15

If a paid $261 to mail 670 letters. Some of the letters needed $0.30 stamps and the rest needed $0.55 how many letters were mailed at each postage rate

Use system of equations to slove the problem

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Percentage

02/01/15

The price of a gallon of unleaded gas has dropped to 2.82 today. yesterday's price was 2.89. find the percentage decrease. round to the nearest tenth

round to the nearest tenth of a percent.

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Radicals in equations algebra 2

01/31/15

Solving equations with radicals and exponents

In Algebra 2, I was given the following problems, with the only directions being "Solve:" 5 - √x2 - 4x + 32√ = x + 5 (The section between the square root signs is under one square root... more

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Word Problem

01/31/15

Two cars leave LA

Two cars leave LA at the same time and travel in opposite directions. If one travels 88 km/h amd the other 62km/h how long will it take them to be 750 km apart?

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Word Problems

01/31/15

A student needs at least 80%

A student needs at least 80% of all points on the test in class to get a B. There are three 100-point tests and one 250-final test. The student's test scores are 72,85 and 78 for the 100 point... more

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Word Problem Help

01/31/15

A chemical stockroom

A chemical stockroom has a 20% alcohol solution and a 50% alcohol solution. How many deciliters of each should be used to obtain 90 deciliters of a 30% solution?

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Word Problem

01/31/15

How many deciliters

How many deciliters of alcohol must be added to 100 deciliters of a 40% accohol solution to obtain a 50% sollution?

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Linear Equations

01/31/15

Between to rental car companies, with a daily rate and per mile charge, what number of daily miles is the second company cheaper?

A rental car company rents a car for $25.24 per day plus .48 per mile. A second rental car company rents the same car for $42.51 per day plus .37 cents per mile. For what number of daily miles is... more

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Trig Identities Precalc

01/31/15

Prove the identity

Cos4x= 1/8 (3 + 4cos2x +cos4x)

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Math

01/31/15

word problems

The Powell family and the Gonzalez family each used their sprinklers last summer. The Powell family's sprinkler was used for 15 hours. The Gonzalez family's sprinkler was used for 20 hours. There... more

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Other

01/31/15

you are going to need $13,000 in 4 years. average of 4.9% APR compounded quarterly over that time, how much would you need to deposit now?

Please give me the answer to this problem as soon as possible

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Algebra Word Problem

01/31/15

invested $8000 in stocks and bonds. Stocks pay 6% annual interest and bonds pay 9% annual interest. Annual interest is $546. How much did he invest in bonds?

invested $8000 in stocks and bonds. Stocks pay %6 annual interest and bonds pay 9% annual interest. Annual interest is $546. How much did he invest in bonds?

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Math Sequences Formulas

01/30/15

Write a formula for the general term

Write a formula for the general term (the nth term) of the arithmetic sequence. Then use the formula for an to find a20, the 20th term of the sequence. 2, 5, 8, 11,.... an = ?

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Math Sequence Geometric Sequence

01/30/15

Write a formula...

Write a formula for the general term (the nth term) of the geomteric sequence. Then use the formula for an to find a7, the seventh term of the sequence. 3, 15, 75, 375 NOTE: The system tells me... more

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Maths Partial Fraction

01/30/15

Find the partial fraction of the following:

I have worked this out myself but it's not the same as my friend is getting so we need someone else to give it ago please, again please show your steps: Find the partial fraction of the... more

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Average

01/29/15

Greg bats seven cricket matches. In the eighth match he makes 9 runs and his average decreases by one. How many runs has he made in all?

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Money Math

01/29/15

How much did the gift cost?

In order to buy a gift, a group of people each provided $1.90, but they were $19 short of the total. They then each provided $2.75, and this time they had $15 too much. How much did the gift cost?

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Pre Calculus

01/28/15

Find the indicated limit, if it exists. lim x->-2 (4-x squared/2x squared+ x cubed).

Here is the equation again. ((4-x2)/(2x2+x3)) find the limit if it exists the number to plug into the equation is -2.

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Algebra 2 Algebra 2 Question Algebra 2 Help

01/28/15

Questions like this are going to be on my next exam and I have no idea how to do this..

Classify f(θ) of these trigonometric functions as less than, greater than, or equal to zero. A. f(θ)=sinθ, θ is in quadrant III B. f(θ)=tanθ, θ is in quadrant II C. f(θ)=cosθ, θ in quadrant... more

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The area of a sector

select the solution for (f+g)(x)

Word problem

a solution contains 7% of salt. How much water should be added to 30 ounces of water to make a 2.1% solution?

Find Equation of line AB, is A(2,4) and B(1,3). Then find the equation of perpendicular to line segment AB

Kara's Custom Tees

If a paid $261 to mail 670 letters. Some of the letters needed $0.30 stamps and the rest needed $0.55 how many letters were mailed at each postage rate

The price of a gallon of unleaded gas has dropped to 2.82 today. yesterday's price was 2.89. find the percentage decrease. round to the nearest tenth

Solving equations with radicals and exponents

Two cars leave LA

A student needs at least 80%

A chemical stockroom

How many deciliters

Between to rental car companies, with a daily rate and per mile charge, what number of daily miles is the second company cheaper?

Prove the identity

word problems

you are going to need $13,000 in 4 years. average of 4.9% APR compounded quarterly over that time, how much would you need to deposit now?

invested $8000 in stocks and bonds. Stocks pay 6% annual interest and bonds pay 9% annual interest. Annual interest is $546. How much did he invest in bonds?

Write a formula for the general term

Write a formula...

Find the partial fraction of the following:

Greg bats seven cricket matches. In the eighth match he makes 9 runs and his average decreases by one. How many runs has he made in all?

How much did the gift cost?

Find the indicated limit, if it exists. lim x->-2 (4-x squared/2x squared+ x cubed).

Questions like this are going to be on my next exam and I have no idea how to do this..

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