338 Answered Questions for the topic College Math

10/19/17

#### Help with a word problem

A total of $12,000 is invested in two funds paying 9% and 11% simple interest. If the yearly and trust is $1180, how much of the $12,000 is invested at each rate?

10/19/17

#### Solve the systems of equations

4x+3y=-13
3x-5y=12
I have done this problem and cannot figure out what the answer is.

10/19/17

#### Find the equation of the line through the points (5,-6) and (-4,-6).

I got y=0/-9x-6 but it does not seem right.

10/19/17

#### Find the equation of the line with slope -3 and going through the point (3,11).

I got y=3x+20 and was wondering if it is right.

College Math College Algebra

10/17/17

#### what is the domain and range and wether y is a funtion of x? y= - |3x| also what would i put for a list of ordered pairs that satisfy the equation???

please help ive been struggling all day on this homework problem.

10/17/17

#### what is the range and the domain of " y= x-7 <---and x-7 is in a square root thing

pleaseee help

10/17/17

#### Unsure how to solve this word problem and how to get the answer.

A square and a triangle have the same area. The base of the triangle is 3 feet more than the side length of the square. The height of the triangle is 1 foot less than the base of the triangle....
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College Math Percents

10/15/17

#### 14.37% to a decimal then a fraction

what is it in a decimal and a fraction

College Math

10/11/17

#### my question is attached in the description

A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 lower than in the first. The tax in the first city was 6%, and the tax in the second city...
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10/10/17

#### Transformation: Given the function f(x) PLEASE HELP

om the other.a) f(x) + 2b) f (x + 2)c) f(x) + f (2)Unit 6 DQ Follow-up #1: VariationUnit 6 DQ Follow-up # 1 question: If y varies directly as , explain why doubling x would not cause y to be...
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College Math Trigonometry

10/10/17

#### Find cos2x if sin(X)= 9/41.

Can you please show every step? Thanks!

College Math

10/06/17

#### how do i get the actual economy shrinkage?

If the national economy shrank at an annual rate of 4% per year for four consecutive years, then the economy shrank by 9% over the four-year period.
The actual question is looking for a true or...
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10/05/17

#### A newspaper carrier has 5.50 in change.He has 5 more quarters than dimes but 3 times as many nickels as quarters.How many coins or few have type does he have?

Please explain how to do this in the easiest to understand way you can.

10/04/17

#### what is tan(sin^-1(3/7)+cos^-1(4/5))?

I get confused when I have to do the tangent part of the equation.

10/03/17

#### Find the exact value of cos 15 degrees= sqrt(A)(sqrt(B)+1)/4...what is A and what is B?

I know how to get the answer, but for some reason, they want it in this format and I'm not sure how to do it this way.

10/03/17

#### Am I doing this right?

Kai takes off from parking structure 1 at 3:00 PM, driving north. One hour later, Jacob takes off from parking structure 1, too, but he had south, and his speed is 15 mph more than Kai's. At...
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10/03/17

#### How to solve and what's the answer to the problem?

Colombian coffee beans cost $5.50 per pound, while Peruvian coffee beans cost $4.25 per pound. We want to mix the beans together so as to produce a 40 pound bag, costing $4.60 per pound. How many...
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09/30/17

#### Use C to denote cos(x), and express 1+tan^2(x)=______ in terms of C. Similarly, express (1-sinx)(1+sinx)=____ in terms of C.

Hint: For the first part use the definition of the tangent function. For the second part use the third binomial formula:
(a+b)(a-b)=a^2-b^2
Can you please show clear steps on how you got this?...
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09/29/17

#### implify and write the trigonometric expression in terms of sine and cosine: sec(t)-cos(t) divided by sec(t)=f(t)^2.

Please write in terms of sine and cosine!

09/28/17

#### If P(B)=0.4, P(A|B)=0.5, P(B′)=0.6, and P(A|B′)=0.7, what is P(B|A)?

Statistics probability problem.
I could really use some help figuring out how to solve this.

College Math College Algebra

09/26/17

#### Factor the following polynomial by grouping. " wya + d - y - wda =

please helppppppppp

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