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Post New Question
All Questions
+0
230858 Questions
0
332
1
minimum value
What is the minimum value of the expression 2x^2 + 3y^2 + 8x - 10y + 62 for real x and y?
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Guest
May 29, 2021
0
345
1
Quadratic
When the expression -5x^2 + 20x - 17 + 3x^2 + 12x - 8 is written in the form a(x + d)^2 + e, where a, d, and e are constants, then what is the sum a + d + e?
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Guest
May 29, 2021
0
366
1
Polynomials
Let f(x)=-3x^2+x-4, g(x)=5x^2-3x-8, and h(x)=5x^2+5x+1. Express f(x)+g(x)+h(x) as a single polynomial, with the terms in order by decreasing degree.
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Guest
May 29, 2021
0
341
1
Absolute value
If a is less than b, what is the value of |a-b|-|b-a|?
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Guest
May 29, 2021
0
416
2
Polynomials
What is the coefficient of x^3 in (x^4 + x^3 + x^2 + x + 1)^5?
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Guest
May 29, 2021
+1
452
3
+62
HELP ASAAAAAP Sorry for so many Questions :/
How many ways are there to put 4 distinguishable balls into 2 indistinguishable boxes?
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Derekshakk
May 29, 2021
0
404
1
Polynomials
What is the coefficient of x in (x^4 + x^3 + x^2 + x + 1)^5?
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Guest
May 29, 2021
0
351
1
Polynomial
There is a polynomial which, when multiplied by x^2 + 2x + 3, gives 2x^5 + 3x^4 + 5x^3 + 2x^2 + 9x + 9. What is that polynomial?
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Guest
May 29, 2021
0
430
1
update: i'm still confused :(
https://web2.0calc.com/questions/suppose-that-for-some-a-b-c-we-have-a-b-c-6-ab-ac
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Guest
May 29, 2021
0
369
2
Complex series
Evaluate 1 + i/2 + 1/4 + i/8 + 1/16 + i/32 + ... (where i is the imaginary unit). Express your answer in the form a+bi, where a and b are real.
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Guest
May 29, 2021
0
395
2
Suppose that for some $a,b,c$ we have $a+b+c = 6$, $ab+ac+bc = 5$ and $abc = -12$. What is $a^3+b^3+c^3$?
thanks :)
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Guest
May 29, 2021
+5
456
1
+428
quick question x2
The GCD of n and 216 is 24 and their LCM is 864. Find n.
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Dennis070sinneD
May 29, 2021
+1
329
1
Math problem
Note that
1111111=10^6+10^5+10^4+10^3+10^2+10+1
and
909091=10^6-10^5+10^4-10^3+10^2-10+1.
read more ..
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Guest
May 29, 2021
+2
454
2
+428
quick question
The larger of two integers is 8 times the smaller. Explain why they can’t both be perfect squares.
ElectricPavlov
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Dennis070sinneD
May 29, 2021
+1
316
1
Help with sums
Simplify (1+3+5+...+199+201+203)/(2+4+6+...+200+202+204).
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Guest
May 29, 2021
+1
338
1
3d geometry
Jimmy owns a cube-shaped container that measures 10 inches on each side. He fills this container with water until it is half full. Then he throws ten giant ice cubes that measure 1 inch on each side into the container. In inches cubed, how much of the container
read more ..
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Guest
May 29, 2021
+2
514
4
+514
Find the area of the following irregular shape.
Find the area of the following irregular shape.
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mworkhard222
May 29, 2021
+1
424
1
+514
Jane alone can do the work in 15 days and John alone can do it in 10 days. How many days are needed if Jane and John work together?
Jane alone can do the work in 15 days and John alone can do it in 10 days. How many days are needed if Jane and John work together?
ElectricPavlov
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mworkhard222
May 29, 2021
+1
244
1
3d geometry
Rectangle ABCD is the base of pyramid PABCD. If AB = 8, BC = 4, and the height of the pyramid is 6, then what is the volume of PABCD?
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Guest
May 29, 2021
+1
389
2
+514
SPEED
Two cars are traveling in the same direction: one at 45 miles/hr and the other at 60 miles/hr. If the slower car is 30 miles ahead of the faster car, how long does it take the faster car to catch up with the slower car?
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mworkhard222
May 29, 2021
+1
325
1
3d geometry
A regular tetrahedron is a triangular pyramid in which each face is an equilateral triangle. If the height of a regular tetrahedron is 20 inches then what is the volume of the tetrahedron?
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Guest
May 29, 2021
0
331
1
3d geometry
A spherical soap bubble lands on a horizontal wet surface and forms a hemisphere of the same volume. Given the radius of the hemisphere is 3 cm, find the radius of the original bubble.
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Guest
May 29, 2021
0
525
5
+75
ASAP :)
Of the 30 students in my class, 11 practice taekwondo, 11 play piano, and 20 take lessons at MS. 4 students play piano and go to MS, 3 students do taekwondo and play piano, 5 students go to MS and practice taekwondo, and 3 students do none
read more ..
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szastan
May 29, 2021
0
322
2
3d geometry
The solid shown was formed by cutting a right circular cylinder in half. If the base has a radius of 6 cm and the height is 10 cm, what is the volume, in terms of pi, of the solid?
read more ..
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Guest
May 29, 2021
0
373
1
Complex Numbers
Let be real numbers, none of which are equal to , and let w be a complex number such that and
If , then find .
read more ..
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Guest
May 29, 2021
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