Register
Login
Information
This feature requires your approval of cookies
You can approve cookies in the notification bar at the top of this window
Information
This feature requires your approval of cookies
Home
Forum
^{+0}
Widgets
Formulary
Maths
Help
Complex Numbers
Integral Calculus
Differential Calculus
Equations
Graphs
Linear Algebra
Number theory
Percent
Standard Functions
Statistics
Trigonometry
Unit Conversion
Units
About
Imprint
Privacy Policy
Terms of Service
Credits
Google+
Facebook
Contact Email
Yes I am 16 or older
Cookie Consent
I accept third party cookies used to show me
personalized
ads. I also accept that these cookies are used to share information about my use of this site with advertising providers who may combine it with other information that I have provided to them or that they’ve collected from my use of their services.
I accept strictly necessary cookies that guarantee functions without which I could not use this website as intended.
Configure
I accept all cookies
unlimited
sponsored calculations per hour
All Questions
^{+0}
169501 Questions
0
94
1
pls help btw yall are amazing for answering
Give the exact value for each / show work
a. (tan900°+sec135°) / csc(-90°)
read more ..
●
Guest
Feb 20, 2020
0
50
0
A theater sold 4 adult tickets and 3 child tickets for 156 dollars they also sold 3 adult tickets and 4 child tickets for 145 dollars. How m
A theater sold 4 adult tickets and 3 child tickets for 156 dollars they also sold 3 adult tickets and 4 child tickets for 145 dollars. How much are adult and child tickets
Guest
Feb 20, 2020
0
74
1
help
If 1qt of paint covers 120ft^2, how many square feet does 2 gal cover?(1 gal=4 qt.)
●
Guest
Feb 20, 2020
-1
195
1
Please help, as soon as possible!
1)Donatello starts with a marble cube of side length $10.$ He then slices a pyramid off each corner, so that in the resulting polyhedron, all the edges have the same side length $s.$ Find $s.$
[asy] import three; size(7cm); unitsize(1
read more ..
●
Guest
Feb 20, 2020
0
86
1
help
Airline fares for a flight from Dallas to Austin are $30 for first class and $25 for tourist class. If a flight had 52 passengers who paid $1360,how many first class and tourist class passengers were there?
●
Guest
Feb 20, 2020
0
88
1
please help
Carolyn received a check last week . She invested part at 15% and 1000 more than this amount at 16%. If she will earn $780 in interest in a year, how much was invested at each rate?
●
Guest
Feb 20, 2020
0
71
1
help
Matt wants to measure the height of a tree. He walks exactly 100 feet away from the base of the tree and looks up at it. The angle from his eyes to the top of the tree is 35.
If his eye level is 5 feet from the ground what is the height of the tree.
read more ..
●
Guest
Feb 20, 2020
0
171
1
I NEED HELP DESPERATELY!
For an integer n, the inequality x^2+nx +15<0 has no real solutions in x. Find the number of different possible values of n.
●
Guest
Feb 20, 2020
0
74
1
help
A quality control inspector samples 2 computer chips from a box containing 13 computer chips. If the box contains 3 defective chips, in how many ways can he select a sample so that at least one of the chips is defective?
●
Guest
Feb 20, 2020
0
92
1
What is the sum of the first six terms of the series?
What is the sum of the first six terms of the series?
●
Guest
Feb 20, 2020
0
155
2
help
One angle of a right triangle measures 60°. The side opposite this angle measures 15 inches.
What is the length of the hypotenuse of the triangle?
Enter your answer, in simplest radical form
Hypotenuisance
●
●
Guest
Feb 20, 2020
0
94
1
help
The terminal ray of angle β , drawn in standard position, passes through the point (−4, 3√5) . What is the value of cosβ ? Enter your answer, in simplest radical form, in the box. Cosβ = ?
read more ..
●
Guest
Feb 20, 2020
0
77
2
please help
Left on together, the cold and hot water faucets of a certain buthtub take 7 minutes to fill the tub. If it takes the cold water faucet 17 minutes to fill the tub by itself, how long will it take the hot water faucet to fill the tub on its own?
read more ..
●
●
Guest
Feb 20, 2020
0
95
6
T^3 = 27 * R^5 is simplified to T=a*R^b
T^3 = 27 * R^5 is simplified to T=a*R^b
a. Calculate the exact values of a and b
b. If R gets eight times bigger, how many times does T get bigger?
c. The equation for T is simplified to R=p*T^q. Calculate p to one decimal
read more ..
●
●
●
●
●
●
Guest
Feb 20, 2020
0
56
0
a. Solve g(x) = -10 and g(x) > f(x) for the given equations f(x)=x^2 and g(x)=1/(x^3).
a. Solve g(x) = -10 and g(x) > f(x) for the given equations f(x)=x^2 and g(x)=1/(x^3).
b. What is the symmetry axis or point of axis for both graphs.
Guest
Feb 20, 2020
0
71
1
help
Suppose Set A contains 325 elements and the total number elements in either Set A or Set B is 631. If the Sets A and B have 43 elements in common, how many elements are contained in set B?
●
Guest
Feb 20, 2020
0
86
1
help
Martha types a 4−digit code into a keypad to unlock her car doors. The code uses the numbers 1 and 0. If the digits are selected at random, what is the probability of getting a code with exactly three 0's?
●
Guest
Feb 20, 2020
+1
71
1
+41
A number theory question...
In this problem, a and b are positive integers.
When a is written in base 9, its last digit is 5.
When b is written in base 6, its last two digits are 53.
When a - b is written in base 3, what are its last two digits? Assume
read more ..
chenxander
●
chenxander
Feb 20, 2020
0
84
0
alg 2
Based on a poll of 1000 residents, a newspaper article claims that 62% of the residents in town favor the development of a recreational park on the west side of town. A community action group interested in preserving the environment claims that 45% of the
read more ..
Guest
Feb 20, 2020
0
74
1
Another radical question
A rectangle has a width length of 5 sqrt rt 8 inches and a width of 2sqrt rt 8 inches. What is the perimeter of the rectangle?
●
Guest
Feb 20, 2020
+1
115
3
i really need help!!!
Square ABCD has area 12.25.
E is the intersection of BD and the semicircle of diameter AD.
read more ..
●
●
●
Guest
Feb 20, 2020
0
63
1
Math help,,
A square has a length of 6sqtrt 6 inches. What is the area of the rectangle? It's like a radical question
●
Guest
Feb 20, 2020
0
87
2
help
She bought 3 types of fruit for a fruit salad. She paid twice as much for blueberries as for oranges, and $1.50 less for strawberries than for blueberries. If the total cost was 12.25 how much did she spend on each fruit?
IsabelleJ761
●
●
Guest
Feb 20, 2020
0
69
1
please help geometry!!!
Let be a trapezoid with bases and Let and and let be a point on side such that Let be the feet of the altitudes from to respectively.
read more ..
●
Guest
Feb 20, 2020
«
latest
6779
6778
..
6375
6374
6373
6372
6371
..
2
1
»
8 Online Users
Top Users
+111321
CPhill
moderator
+109509
Melody
moderator
+30038
Alan
moderator
+24949
heureka
+23566
ElectricPavlov
+20885
geno3141
+12198
Omi67
moderator
+9457
asinus
moderator
+8956
hectictar
+8258
DragonSlayer554
+7824
MaxWong
Sticky Topics
removed
Loads of fun printable number and logic puzzles
Has your answer tab disappeared ?
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
Filter Issues
How to upload a picture.
If a question is ticked that does not mean you cannot continue it.
Should you consider anything before you answer a question?
Geometry Thread
PUZZLES
LaTex Coding
https://www.desmos.com/calculator/bsh9ex1zxj
@ Is PROCRASTINATION a problem for you ?
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material