1,070 Answered Questions for the topic Math Equations

Math Equations

04/26/13

#### Determine rather the expression is a polynomial.

If it is, state how many terms and variables the polynomial contains. Than state its degree.

Math Equations

04/25/13

#### Find the Cartesian equation for the curve?

Find the Cartesian equation for the curve described by the polar equation r=1/(1-sin(theta)).

Math Equations

04/25/13

#### What is the y-component of r(pi/2)?

If r'(t)=<sin(t), -cos(t), 2t> and r(0)=<1, 1, 2>. What is the y-component of r(pi/2)?
r(t)=<-cos(t), -sin(t), t^2>
r(pi/2)=-1
So -1 is the answer?

Math Equations

04/25/13

#### scientific form

place 2 x10 to the 3rd power x 923 in scientific form with correct significant digits

Math Equations

04/25/13

#### FIND THE 7TH ELEMENT

IF THE INITIAL VALUE OF A SEQUENCE IS 6 AND THE COMMON DIFFERENCE IS 6, WHAT IS THE 7TH ELEMENT?

Math Equations

04/24/13

#### Do you always use the property of distribution when multiplying monomials and polynomials?

Explain why or why not. In what situations would distribution becomeimportant?

Math Equations

04/24/13

#### How would you define a polynomial expression?

What are some of the characteristics and types of polynomials? Why arepolynomials used to describe many real world applications? Find and share someexamples from your personal experience, textbook...
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Math Equations

04/24/13

#### I need help on these two equations please?

the first one is: x+x+2+2x=-2
the second one is: 3x-9x+7-3=-8

Math Equations

04/18/13

#### Use the method of substitution to solve the system of linear equations.

7a=6-b
7a=4-b
Select the correct choice below and if letter a is chosen type an ordered pair.
(a) There is one solution.
(b) There is infinitely many solutions.
(c) There are no solutions.

Math Equations

04/18/13

#### Solve the equation and check the solution.

-5(t-6)-(t+8)=2
The solution is t= what ? (Type an integer or simplified fraction.)

Math Equations

04/18/13

#### Solve the linear inequality.

1-8/7x>8
The solution set is? (Type an inequality. Use integers or fractions for any numbers in the expression.)

Math Equations

04/18/13

#### In 1980, median family income was about $19,000, and in 2000 it was about $41,000.

(a*) Find the slope of the line passing through the points (1980,19000 and (2000,41000). M=?
(b*) Interpret as a rate of change. Choose the correct answer below.
(a) The median family...
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Math Equations

04/18/13

#### A certain region is losing about 24 million acres of rain forest each year.

(a) Find a linear function f that calculates the change in acres of rain forest in millions in x years. Type an expression using x as the variable f(x)=? (Type an expression using x as the...
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Math Equations

04/17/13

#### When the cost of a car is multiplied by 0.08 the result is $1740.

Find the cost of the car.
The answer is what in dollars? (Round to the nearest whole number as needed.)

Math Equations

04/17/13

#### Find the value of y for the given values of x and z.

y= x+z
x=2
z=13
The value is y=?

Math Equations

04/17/13

#### The perimeter of a rectangle is 36 ft. The length is 10 ft. longer than the width.

Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width.
The first equation 2x+2y=?
The second equation x=y+?
What is the...
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Math Equations

04/17/13

#### A family refers to a group of two or more people related by birth, marriage, or adoption who reside together.

In 2000, in Country A, the average family net worth was $380,000, and there was about 9.7 x 10^7 families. Calculate the total family net worth in Country A in 2000.
Country A's total family net...
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Math Equations

04/17/13

#### Find the area of a triangle.

With a base of 2 3/4 yards and height of 4/9 yards.
The area is ? (Type a whole number or simplified fraction.)

Math Equations

04/17/13

#### A tugboat goes 160 miles upstream in 20 hours. The return trip downtown takes 10 hours.

Find the speed of the tugboat without a current and the speed of the current.
The speed of the tugboat is what in mph? And what is the speed of the current in mph? (Simplify your answer.)

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