573 Answered Questions for the topic Math Answers
08/06/16
Determine all non permissible values
Determine all the non-permissible values of
f(x)= (x^2-1)/(x^2-x-6)
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08/04/16
The Valentines day mix
The Valentines day mix of 400 candies in a 1pound bag. 160 of the M&M's are red.What percentage of the Valentine's Day M&M's are red?
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07/25/16
Rational expressions and equations
Two buckets are used to fill a large bathtub with water. Bucket A is larger, and by itself it can fill the bathtub in 20 minutes. Bucket B is smaller, and by itself it can fill the bathtub in 50...
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07/25/16
Find value of x
A soccer ball is kicked with some initial velocity v at some angle θ such that its path in the air follows the equation
y=1.0+1.73x-1.225x^2
where (x,y) is the coordinate of the ball along...
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07/25/16
Find roots of function
Find roots of the function
f(x)=112x^2-5x+1 -1
Express answer in exact form.
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07/25/16
Find two standard angles between 0° and 360°
Find two standard angles between 0° and 360° whose cosine value is -0.7.
Round answer to 1 decimal place.
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07/25/16
Derive an expression for the sum of the reciprocals of two consecutive odd integers
Derive an expression for the sum of the reciprocals of two consecutive odd integers 2m-1 and 2m+1.
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07/25/16
Solve for x
The perimeter of a triangle is 10 (that is, a+x+(x+1)=10).
Use this and the cosine law to solve for x. Round answers to 2 decimal places.
Triangle:
<BAC: 60degrees
line BA: x
line AC:...
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07/25/16
For what value(s) of k does the system of equations
For what value(s) of k does the system of equations
y=x^2-3x+5
y=kx
have only 1 solution? Leave answers in exact form.
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07/25/16
Find the length of the part of the line y+x+6 'inside'......
Find the length of the part of the line y=x+6 'inside' (or above) the curve y=x^2. Leave answer in exact form.
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07/25/16
Find the coordinates of intersection
The equation of a circle of radius r with its center at the point (h,k) is given by (x-h)^2+(y-k)^2=r^2
Find coordinates of intersections of the following...
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07/24/16
The x and y-intercepts of a quadratic function in the form
y=a(x-h)^2+k
are (2,0), (-4,0), (0,16).
Solve for a, h, and k.
Present answer in form y=a(x-h)^2+k.
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Math Answers
06/16/16
A certain car rental agaency charges 15.00 per day plus 0.30 per mile that the car is driven.
A certain car rental agaency charges 15.00 per day plus 0.30 per mile that the car is driven. Which of the following is an expression for the total charge in dollars of renting a car for 1 day...
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Math Answers
06/16/16
If 2% take 4% what is the take rate between the 2% and the other 98%?
If at a party 2% of the guests eat 4% of the food what is the consumption rate between the 2% and the other 98%?
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Math Answers
06/14/16
Which of the following situations can be modeled by the expression -8 + 35?
When Shawn woke up, the temperature was -8°F. By noon, the temperature had increased by 35°F. What was the temperature at noon? When Shawn woke up, the temperature was -8°F. By noon, the...
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06/14/16
which situations can be modeled by the eexpression -4+(-7)
Elsa lost four points on the last math quiz, and Marc lost seven points. How many more points did Marc lose than Elsa? Elsa lost seven points on the last math quiz, and Marc lost four points. How...
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Math Answers Math Problem
06/13/16
what is 11/13 rounded to the nearest hundredth
i need help i don't know how to round fractions and i'm struggling and i hear this is the best site for help so can help me i would really appriciate it
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Math Answers
06/01/16
12 less than triple the difference of x and 10 is 24. Find the value of x.
Need help solving this
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Functions Word Problem
Jerry plans to begin saving money for a trip by putting $1 in a savings account the first month and then adding enough to double the amount in the account each following month.After he finishes...
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05/25/16
Use the tangent plane approximation to find f(33,4).
The number of minutes taken for a chemical reaction if f(t,x). It depends on the temperature t degrees celcius, and the quantity, x grams, of a catalyst present. When the temperature is 30 degrees...
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05/25/16
Express the total cost of the box & find the least costly dimensions.
A rectangular box must have a volume of 2 cubic meters. The material for the base and top costs $ 2 per square meter. The material for the vertical sides costs $ 64 per square meter.(a) Express the...
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05/25/16
What are the x & y values at the minimum?
Find the x and y values at the minimum off(x)=2x2+xy+2y2+6y+7
I have tried this multiple times but I keep getting marked wrong. I'm not really sure how to approach this correctly so it would be...
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05/23/16
What is F_R?
The gravitational force of attraction between two masses m and M at a distance apart of R is F=(GmM)/R2Where G is the universal gravitational constant. Suppose that m is the mass of a rocket which...
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