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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

4.15 times 6.3

4.15 times 6.3
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... more
Math Equations

04/24/13

solve for x

this equation if from my geometry homework.
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

Simplify the given expression

6+2^2=? (Simplify the given expression.)
Math Equations

04/18/13

Simplify (2p)^-4=?

(2p)^-4=? (Use positive exponents only.)
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

Solve D=ABC for A

A=? Solve D=ABC for A
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... more
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... more
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

Multiply and write the answer without exponents.

(2 x 10^4) x (4 x 10^5=?
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... more
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... more
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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