1,090 Answered Questions for the topic Math Equations
04/06/15
solve by the substitution method
r-9s=0
9r-3s=390
what is the solution of the system. _ (type an ordered pair)
04/06/15
solve the following system of equations using the substitution method
x=y+7
2x+y=5
the solution is. _ (type an ordered pair)
solve by elimination method
8x-y=67
x+7y=44
determine the solution of the system. select the correct choice below and, if necessary, fill in the answer box to complete your choice.
a) _ (type ordered pair)
b) there...
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Math Equations
04/02/15
Three pounds of butter at $n per pound cost $3.85
Math help
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Math Equations Math Help
04/01/15
Please help me solve math problem step by step
The U-Drive Rent-A-Truck company plans to spend $14 million on 260 new vehicles. Each commercial van will cost $45,000, each small truck $70,000, and each large truck $60,000. Past experience shows...
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Math Equations
03/31/15
solve this linear equation 2x+3y=7
I need help with this for my homework please. ♥♥♥♥
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Math Equations
03/31/15
getting equations from coordinates
what is the equation you get from the coordinates (0,-2) (2,0) (4,2)
Math Equations
03/29/15
function increasing
f(x) = x^2 +6x +17
On what interval is the function increasing?
Math Equations Math
03/28/15
find the ordered pair
I need to find the ordered pair for this equation 2y=5x-4
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Math Equations
03/27/15
The sum of 5 consecutive integers is 500. What is the third number in this sequence?
a math question
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Math Equations
03/26/15
if betty ran for 8 minutes and burned 50 calories, how long should she run if she wants to lose 325 calories
Try and solve the question. My kid says its a trickster!
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Math Equations
03/26/15
How fast is this is miles per hour? Round to the nearest whole number
While in Mexico, Frank looks at his speedometer and sees his dad is driving 100 kilometers per hour!
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03/26/15
z1 = 4 (cos 45° + i sin 45°) and z2 = 2 (cos 30° + i sin 30°)
Please solve: "z1 = 4 (cos 45° + i sin 45°) and z2 = 2 (cos 30° + i sin 30°). What's z1 * z2? What's z1/z2?" Did it myself but got it wrong, so please post steps so I can see where I went...
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Math Equations
03/26/15
Math - System of Equations
Bob is trying to guess the two numbers his friend is thinking of. His Friend tells him the sum of the two numbers is 25. He also tell him that the bigger number is 5 more than the smaller number....
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03/26/15
z1 = 4 (cos 45° + i sin 45°) and z2 = 2 (cos 30° + i sin 30°)
Please solve:
"z1 = 4 (cos 45° + i sin 45°) and z2 = 2 (cos 30° + i sin 30°).
What's z1 * z2?
What's z1/z2?"
Did it myself but got it wrong, so please post steps so I can see where...
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Math Equations
03/25/15
How many crayons can be made with 7,700 kilograms of wax if each crayon mold holds 5 grams of wax?
Please try to give me an answer with shown work. And if you can explain what i can do to get the answer multiply,add,divide,or subtract.
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Math Equations Math Word Problem
03/25/15
Write an inequality that represents the criteria to receive foreign aid. Let x represent the population and y represent the number of people in poverty.
The U.N. decides to give help to countries in poverty. It was decided that only countries in which the number of people in poverty is more than one-half of its total population would receive...
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03/25/15
Write an equation and solve it to find out how many Kurds live in Turkey.
Turkey has a population of 66 million people and its made up almost entirely of two ethnic groups: Turks and Kurds. There are four times more Turks than Kurds.
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Solve the equation z2 + 2z + 2 = 0
Solve the equation z2 + 2z + 2 = 0Please post steps so I can follow!Thanks a bunch!!!
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Given that z1 = 4 (cos 45° + i sin 45°) and z2 = 2 (cos 30° + i sin 30°)
Given that z1 = 4 (cos 45° + i sin 45°) and z2 = 2 (cos 30° + i sin 30°).Whats 1. z1 * z2
2. z1/z2Please post steps! Thanks!!!!!!
03/23/15
Decide |z|, arg ??¯,Re z, Im ??¯ for z = 1 - i
Decide |z|, arg ??¯,Re z, Im ??¯ for z = 1 − i
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calculate the integral (2x - 4x3) dx
Can you help me calculate the integral ∫²1 (2x - 4x3) dx ?And show me the steps to get there? Thanks!
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03/23/15
Solve the equation tan(x-0.5) = 1 answer in radians with two decimals
Solve the equation tan(x-0.5) = 1 answer in radians with two decimalsPlease write out the steps also so I understand how to think!A billion thanks for the help
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Math Equations
03/22/15
Regression equation?
State the type of mathematical relationship that exists. Once you've recognized the type of relationship (linear, quadratic, or exponential determine the regression equation for this relationship?...
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Math Equations Math
03/20/15
the length of the rectangle is twice the width, and the perimeter of the rectangle is 78 inches. what are the length and width of the rectangle? (note:p=2l+2w)
just need the answer
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