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All Questions
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237665 Questions
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Trigonometry
The value of is
Thank you.
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amygdaleon305
Jun 15, 2021
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444
1
Hello
Hi everyone, I was thinking about starting a thread on webcalc so we can just talk. and share some math tips with each other!
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Guest
Jun 15, 2021
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537
1
help pls!!!! urgent!!
Sean has 12 cylindrical containers filled with sand, each of which has a radius of 4 centimeters. He wants to transfer his sand into some new cylindrical containers, which are the same height but have a radius of 8 centimeters. How many new containers will
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Guest
Jun 15, 2021
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429
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I need help
20 inches to 2 feet hint you'll need to make these the units for a reasonable comparison
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Guest
Jun 15, 2021
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388
1
Help with number theory
In the equation 1/j + 1/k = 1/8, both j and k are positive integers. What is the sum of all possible values for k?
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Guest
Jun 15, 2021
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544
2
Como resolver essa função?
No dia 21 de fevereiro, desembarcava no Brasil, mais especificamente na cidade de São Paulo, um homem de 61 anos que tinha ido a trabalho na Itália. Após apresentar os sintomas do novo coronavírus (febre, dor de garganta, coriza e tosse), dirigiu-se ao
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Guest
Jun 15, 2021
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414
1
Coordinates
A line through the points (2, -9) and (j, 17) is parallel to the line 2x + 8y = 21. What is the value of j?
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Guest
Jun 15, 2021
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436
2
amogus
A piece of wire 72 cm long is cut into two equal pieces and each is formed into a circle. What is the sum, in square centimeters, of the areas of these circles?
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Guest
Jun 15, 2021
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493
3
helepeplepleplplelpepll
hbuqwrbhisdasa
ElectricPavlov
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Guest
Jun 15, 2021
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274
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An elliptic curve problem
An elliptic curve has integer solutions of (2, 3) and (0, 1). What is the constant?
Guest
Jun 15, 2021
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432
1
Inverse Functions
If h(y) = (1 + y)/(2 - 2y), then what is the value of $h^{-1}(5)$? Express your answer in simplest form.
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Guest
Jun 15, 2021
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336
1
Help algebra problem
When a polynomial is divided by -3x^3 + 10x - 11, what are the possible degrees of the remainder? Enter all the possible values, separated by commas.
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Guest
Jun 15, 2021
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490
3
Algebra
If a + b + c = -3, a+3b+c = 9, a+b+3c = -19, then find abc.
FeedMePi
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Guest
Jun 15, 2021
0
477
2
+50
final exam review day 4
divide: 14/x divided by 2/5x
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kirstenday51704
Jun 15, 2021
0
413
1
Need help
If x and y are positive integers for which 3x + y + xy = 115, then what is x + y?
catmg
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Guest
Jun 15, 2021
0
407
1
Algebra
Find 1/(a - 1) + 1/(b - 1), where a and b are the roots of the quadratic equation 2x^2 - 9x + 2 = 0.
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Guest
Jun 15, 2021
+2
550
4
+50
final exam review day 4
x2+6x-27/x-3 multiplied by 3x/x+9
multiply
i know the answer is possibly 3x but i dont know how to show my work
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kirstenday51704
Jun 15, 2021
0
401
1
help geometry
Two lines p and q intersect at X at an angle of 36 degrees. Let A be a point inside the 36 degrees angle formed by p and q Let B the reflection of A through line p and Let c be the Reflection of A through line q. Find angle BAC.
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Guest
Jun 15, 2021
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457
5
Arithmetic series
Let a1, a2, a3, ... be an arithmetic sequence. If a2/a4 = 3, what is a5/a3?
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Guest
Jun 15, 2021
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492
2
+81
Hi guys help plssss
1)How many perfect squares are there between 20 and 150?
2)How many ways can we put 3 math books and 5 English books on a shelf if all the math books must stay together and all the English books must also stay together? (The math books are all different
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IMAGODLYNOOB
Jun 15, 2021
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337
1
Number Theory
x,y, and z are positive integers such that gcd(x, y, z) = 14 and lcm(x, y, z) = 630 and y = 3x. What is the smallest possible value of x + y + z?
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Guest
Jun 15, 2021
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447
1
Help with geometry
Let A_1 A_2 A_3 ... A_{10} be a regular polygon. A rotation centered at A_1 with an angle of a takes A_2 to A_{10}. Given that a < 180 degrees, find a, in degrees.
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Guest
Jun 15, 2021
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326
1
Number Theory
Determine the largest possible integer n such that 942! + 120! is divisible by 60^n.
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Guest
Jun 15, 2021
+1
625
0
PPL pls stop doing this
stop asking people multiple questions like did you even try to understand. Just BC everyone is doing distance learning does not mean you can cheat on your test. I mean come on if you are posting so many questions at once how do expect the top users to help
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Guest
Jun 15, 2021
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456
2
math problem
A ball dropped 250 feet. Each time it hits the fround, it bounces back up 1/2 the height it has fallen. Find the total distance, in feet, traveled when the ball hits the ground for the 6th time.
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Guest
Jun 15, 2021
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