19,179 Answered Questions for the topic Algebra

Algebra

12/06/21

Worded Problems Involving Inequalities

John wants to have at least an 80% grade average in his math class. His quarterly grades so far are 85, 75, and 78. What is the lowest he can make on his fourth-quarter grade and still have an 80%... more
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Algebra

12/06/21

How do I solve the problem without Logarithms
log (x+8) - log (x+1)=log 6
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Algebra

12/06/21

I need your help with my math homework
A new cruise ship line has just launched 3 new​ ships: the Pacific​ Paradise, the Caribbean​ Paradise, and the Mediterranean Paradise. The Caribbean Paradise has 38 more deluxe staterooms than the... more
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Algebra

12/06/21

Algebra help; line problems
I need to find the parallel line equation for y = 6 / 1 + 6
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12/06/21

Please see description for some reason it wouldn't let me type it in here :) PLEASE
a dinner meal is made up of an appetizer a main course a dessert and a drink The choices for the appetizer are soup or salad for the main course are chicken, fish, steak or lobster; for the... more
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Algebra

12/06/21

How do you solve the system 6x+3y=54, and 2x+y=18 using substitution?
How do you solve the system 6x+3y=54, and 2x+y=18 using substitution?
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Algebra Math Geometry

12/06/21

What is the distance from point (-10, -4) to the given line 5x - y = 6?
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Algebra Math Geometry

12/06/21

What is the distance from point (-10, -4) to the given line 5x - y = 6?
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Algebra Algebra 1

12/05/21

The Phillips family and tanaka family each used their sprinklers last summer.

The Phillips family’s sprinkler was used for 20 hours. The tanaka family’s sprinkler was used for 35 hours. There was a combined total output of 2000 L of water. What was the water output rate for... more
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Algebra

12/05/21

quadratic equation of the parabola that goes through the points (-1,0)(4,0)(-0,-1)
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Algebra

12/05/21

Algebra age word problem
Pepay's age is one more that twice Nikk'si age. If the sum of their ages four years ago is seventeen, how old is Nikki and Pepay? ​
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Algebra

12/05/21

I cant seem to figure this one out
The polynomial −2t2−7t+3 gives the height, in feet, of a ball t seconds after it is tossed into the air, from an initial height of 3 feet. Find the height after t=3 seconds.
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12/04/21

Find the discriminant and determine the number of​ x-intercepts
f(x) = 2x2 + 2x - 4I got that the discriminant is 36The x-intercepts are (1,0), (-2,0) does that mean the number of x-intercepts is 2 or 3?
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12/04/21

Find a safe speed limit x for an airport taxiway curve with the given radius R by using R = 1/2 times x^2
R = 481 feetSimplify your answer. Round your answer to the nearest integer as needed.I got 481 = 1/2 times x2 = 31 or -31 but I also got square root of +/- 962I don't know which answer is correct.
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12/04/21

Past and future carbon emissions in billions of metric tons during year x can be modeled by...
C(x) = 1/225 times x2 - 1331/75 times x + 443,034/25, where 1989 </ x </ 2019a) Evaluate C(1989). Interpret your answer.(Do not round until the final answer. Then round to two decimal places... more
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12/04/21

Find the minimum​ y-value on the graph of y = f(x)
f(x) = x2 + 2x - 9
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Algebra

12/04/21

A certain forest covers an area of 2200 km2. Suppose that each year this area decreases by 4.75%. What will the area be after 10 years?
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Algebra

12/04/21

mixing solutions

how many liters of 30% alcohol solution must be mixed with 20 liters of a 50% solution to get a 40% solution?
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12/04/21

Given the triangle ABC, if side b is 33 ft., side c is 18 ft., and angle A is 52 °, find side a. Please round to one decimal.
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Algebra

12/03/21

how to convert a quadratic function in general form into standard form
please provide examples
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12/03/21

Solve Quadratic Equations by Quadratic Formula
The height in feet h of an object shot upwards in to the air with initial velocity v0 after t seconds is given by the formula h(t) = −16t^2 + (v0)tA firework is shot upwards with an initial... more
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Algebra

12/03/21

diagonal of a rectangle
The width of a rectangle is 5 less than twice its length. If the area of the rectangle is 193 cm^2, what is the length of the diagonal?
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Algebra

12/03/21

After two minutes of cooling, it was at 178 degrees and after five minutes of cooling it was at 154 degrees. At what temperature did the liquid start cooling? Show how you arrived at your answer.
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Algebra

12/03/21

After two minutes of cooling, it was at 178 degrees and after five minutes of cooling it was at 154 degrees. At what temperature did the liquid start cooling? Show how you arrived at your answer.
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Algebra

12/03/21

How to convert quadratic function in General form into standard form.

Can you give an example
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