4,511 Answered Questions for the topic prealgebra

Prealgebra Math Algebra 1 Algebra 2

03/24/22

For the values in each table, determine if direct variation exists between the variables. If it does, state the constant of variation.
a). x y -1 -1 4 14 8 26 20 62b). x y -3 3/2 2 -1 15 ... more
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Looking Forward, Looking Back, Simplify.
a). (10x3)(5x2)b). (10x3)2c).10x3/5x2
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Simplify each expression using exponent rules. Write each answer in scientific notation.
a). (3x104)(6x106)(2x108)b). (1x1011)(7x105)2/7x104
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Answer true or false for each statement.
a). If a number in scientific notation has a negative exponent, then the number is negative.b). A number that is at least 1 but less than 10 cannot be written in scientific notation.c). A negative... more
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Convert to scientific notation.
Convert to scientific notation.a). -0.0001b). 52x104
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Please help me to solve this.
a). Convert $1 from U.S. dollars to euros to pounds to yen.b). Convert $1 directly (in one step) from U.S. dollars to yen.c). Are answers from parts a and b exactly equal? If not, what could... more
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Convert 25 cubic yards to cubic inches.
Convert 25 cubic yards to cubic inches.
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Prealgebra Math Algebra 1 Algebra 2

03/24/22

Convert 20 mph to kilometers per minute.
Convert 20 mph to kilometers per minute.
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

Simplify the expression using exponent rules. Write the answer in scientific notation.

Simplify the expression using exponent rules. Write the answer in scientific notation.(6x107)(8x106)(9x108)
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

Assume an exponential function has a starting value of 13 and a growth rate of 0.35%. Write an equation to model the situation.

Assume an exponential function has a starting value of 13 and a growth rate of 0.35%. Write an equation to model the situation.
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

Convert the following:
Convert the following:a). 75 miles per hour to kilometers per hourb). 1500 square yards to square metersc). 25 cubic yards to cubic centimeters
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

Solve the following equations for the unknown variable:
Solve the following equations for the unknown variable:a). 4x2=1600b). 1/2x=12c). square root of x=7d). 3x=81
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

Please help me to solve this.
Solve for h: A=1/2hb1+1/2hb2
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

Imagine a road on which you lose 275 feet in elevation for every mile driven. There are 5,280 feet per mile.

Imagine a road on which you lose 275 feet in elevation for every mile driven. There are 5,280 feet per mile. a). Draw a triangle that demonstrates this situation. Label the sides.b). Find the slope... more
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Prealgebra Math Algebra 1 Algebra 2

03/22/22

1. A certain stock started at $55 per share, it is losing 12% of its value every week. Complete the following:

1. A certain stock started at $55 per share, it is losing 12% of its value every week. Complete the following: a). Fill out the table: Week Value 1 ... more
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Prealgebra Math Algebra 1 Algebra 2

03/20/22

Write the function for the following machine given the three pairs of inputs and outputs:
Write the function for the following machine given the three pairs of inputs and outputs: x=1 x=2 x=3 I ... more
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Prealgebra Math Algebra 1 Algebra 2

03/20/22

Please help me to solve this.
Find x such that f(x)=0 for f(x)=-2x2-x
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Prealgebra Math Algebra 1 Algebra 2

03/20/22

Please help me to solve this.
Find f(-1) if f(x)=-2x2-x
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Prealgebra

03/20/22

a.) Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? b.) How high above sea-level does the rocket get at its peak?
NASA launches a rocket at t = 0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t) = − 4.9t^2 + 220t + 262.
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Prealgebra Math Algebra 1 Algebra 2

03/20/22

Your friend has loaned you $2500. Each week, you pay back $75 to this friend.
Your friend has loaned you $2500. Each week, you pay back $75 to this friend.a). Complete the following table, where m = number of months and d = debt owed. m d ... more
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Prealgebra Math Algebra 1 Algebra 2

03/20/22

Please help me to solve this.
At a particular gas station gas costs $3.35 per gallon, but if you buy a $4.50 car wash gas only costs $3.05 per gallon. Let C represent cost and g represent the number of gallons.a). Write an... more
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Prealgebra Math Algebra 1 Algebra 2

03/19/22

Assume an exponential function has a starting value of 5 and decay rate of 13%. Write an equation to model the situation.
Assume an exponential function has a starting value of 5 and decay rate of 13%. Write an equation to model the situation.
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Prealgebra Math Algebra 1 Algebra 2

03/19/22

If a staircase has 8 inches of rise for every 12 inches of tread, what is the slope of the staircase?
If a staircase has 8 inches of rise for every 12 inches of tread, what is the slope of the staircase?
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Prealgebra Math Algebra 1 Algebra 2

03/19/22

Factor the following expressions.
Factor the following expressions.a). 4x3y2-8xy2+32x3y3b). -2m2n-34mn-144nc). 9x2-25y2
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Prealgebra Math Algebra 1 Algebra 2

03/19/22

Fill in each blank with the appropriate word or phrase.
Fill in each blank with the appropriate word or phrasse.a). When solving systems of two equations you can have ___, ___, or ___ numbers of solutions.b). Rate of change is another name for... more
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