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234773 Questions
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193
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Help algebra
What is the smallest integer value of c such that the function f(x) = (2x^2 + x + 5)/(x^2 + 14x + c) has a domain of all real numbers?
Guest
Aug 22, 2021
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410
1
I don't know what to do :((
Find all positive differentiable functions that satisfyfor all real numbers .
I am very new to integration and I have no idea how to approach this problem. Help will be greatly apreciated!!!
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Guest
Aug 22, 2021
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260
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HALP
Find the constant term in the expansion of $\Big(x^2+\frac{1}{x}\Big)^4$.
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Guest
Aug 22, 2021
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351
3
PLZ HELP
Find the constant term in the expansion of \[\Big(2z - \frac{1}{\sqrt{z}}\Big)^9.\]
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Guest
Aug 22, 2021
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369
1
You forgot to answer (you guys ignored)
Answer this question! https://web2.0calc.com/questions/please-help-thank-you_61
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Guest
Aug 22, 2021
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274
1
Geometry Help!!
A rectangular fence is to be built with a division cutting it in half. If 300 total feet of fencing is available to make the perimeter and the inner division, what is the maximum total area, in square feet, that can be enclosed?
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Guest
Aug 22, 2021
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264
1
Help needed!!
A rectangle is placed in the first quadrant so that two of its sides align with the x- and y-axes, and its upper-right vertex lies on the graph of y = e^{-(x^2)/2}. Find the maximum area of the rectangle.
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Guest
Aug 22, 2021
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208
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Math help!!
Find the maximum volume of a cone that can be inscribed in a sphere with radius 18.
Guest
Aug 22, 2021
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180
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Help variables
If 1/x + 1/y = 3 and 1/x - 1/y = 7, what is the value of x + y? Express your answer as a common fraction.
Guest
Aug 22, 2021
Aug 21, 2021
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213
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Floor Function
If y >0 , find the range of all possible values of y such that $\lfloor y \rfloor = 42$. Express your answer using interval notation.
Guest
Aug 21, 2021
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202
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Algebra
Let a and b be real numbers such that a + b = -1. Compute -a^2 - 2a + b^2.
Guest
Aug 21, 2021
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363
1
Parabola
The graph of y=ax^2+bx+c is given below, where a, b, and c are integers. Find a-b+c.
read more ..
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Guest
Aug 21, 2021
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254
2
help with circles
Points T and U are on circle K such that K is 2 units from TU. If TU = 17, what is the radius of the circle?
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Guest
Aug 21, 2021
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273
1
Coordinates
Suppose P is the point (5,3) and Q is the point (8,6) . Find point T such that Q is the midpoint of segment PT.
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Guest
Aug 21, 2021
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402
2
Answer this
https://web2.0calc.com/questions/help_74185
Funny thing, this has been here since 2020 and has been seen by over 300 people but no one has solved it so someone please do that.
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Guest
Aug 21, 2021
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255
1
help algebra
Find three consecutive odd integers such that the sum of the first, two times the second and three times the third is 34.
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Guest
Aug 21, 2021
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186
0
help with sum
Find the value of the sum $\binom{99}{0} + \binom{99}{2} + \binom{99}{4} + \dots + \binom{99}{98}.$
Guest
Aug 21, 2021
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189
0
Counting question
How many positive integers, not exceeding 100, are multiples of 2 or 3 but not 4 or 5?
Guest
Aug 21, 2021
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252
1
help with geometry
In triangle ABC, through the midpoint of AC isdrawn PQ I| AB. The altitude CD = 6 cm. If PQ is 8 less than AB, find PQ and the area of PCQ.
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Guest
Aug 21, 2021
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418
1
+197
Help please!
If for all , then what line is necessarily an axis of symmetry of the graph of ? (Give the simplest equation of this line.)
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icecreamlover
Aug 21, 2021
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252
0
a fifth of the sum of number a and 34. Write as an algebraic expression
a fifth of the sum of number a and 34.
Write as an algebraic expression
Guest
Aug 21, 2021
0
193
0
You forgot to answer this question
https://web2.0calc.com/questions/please-help-thank-you_61
Guest
Aug 21, 2021
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355
1
Rate problem
Elaine drives her car 180 miles and has an average of a certain speed. If the average speed had been 5mph more, she could have traveled 200 miles in the same length of time. What was her average speed?
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Guest
Aug 21, 2021
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274
2
Help needed ASAP
The graph of y=f(x) is shown below:
For each point (a,b) that is on the graph of y=f(x), the point (3a-1,b/2)
read more ..
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Guest
Aug 21, 2021
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212
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Algebra
at the snack shack, students attending the football game can buy sodas for 1 dollar and slices of pizza for 3 dollars. At fridays game, the snack shack made 250 dollars by selling a total of 180 items. How many sodas were sold? How many pizzas were sold?
read more ..
Guest
Aug 21, 2021
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