Register
Login
Username
Password
Login
forgot your password?
Home
Forum
+0
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
Post New Question
All Questions
+0
237671 Questions
-1
1070
3
What is the vector that results from transforming a⃗ by the transformation matrix?
What is the vector that results from transforming a⃗ by the transformation matrix?
a⃗=[ 3 ] [7 3]
[−1] B= [−6 −4]
<
read more ..
●
●
●
Guest
May 20, 2020
0
487
1
help please
A circle is revolved about a diameter and the sphere obtained has numerically the same volume as the circle had area. Find the circumference of the circle.
●
Guest
May 20, 2020
0
619
0
Consider the series 1/4+1/6+1/9+2/27+4/81+....
Consider the series 1/4+1/6+1/9+2/27+4/81+....
Does the series converge or diverge? Is the series arithmetic, geometric, neither, or geometric with an absolute value of the common ration being greater/ less than 1?
Guest
May 20, 2020
0
1003
1
PLEASE HELP!
Two cards are dealt at random from a standard deck of 52 cards (13 hearts, 13 clubs, 13 spades, and 13 diamonds). What is the probability that the first card is a 6 and the second card is a Queen?
Thank you if you can help!
read more ..
●
Guest
May 20, 2020
0
1714
1
Please Help! I'm having a hard time figuring it out :(
The function f(x)=−6sin(7/3x+1/6)−5 models the average rate of change in temperature of a substance monitored in an experiment. In the function, x represents the number of minutes since the commencement of the experiment and the temperature of the substance
read more ..
●
Guest
May 20, 2020
May 19, 2020
0
511
1
geometry
The differences between the hypotenuse and the other two sides of a right triangle are 8 and 4. Find the perimeter of the triangle.
ElectricPavlov
●
Guest
May 19, 2020
0
663
3
+738
Please help!
Compute the sum of:
Thanks in advance to whoever helps! I'm very grateful! :)
●
●
●
lokiisnotdead
May 19, 2020
0
398
0
please help
Find the largest positive integer that divides any number of the form n(n + 1)(2n + 1), for any positive integer n.
Guest
May 19, 2020
+1
666
0
+614
fun problem
find the amount of money the jar contains.
Jar is a wide mouth Quart Mason Jar Jar is 7” tall Jar is 3.5” wide Jar is 12.5” around Jar Weighs 8 pounds 7.5 ounces Jar contains Quarters, Dimes, Nickels and Pennies
read more ..
off-topic
xxJenny1213xx
May 19, 2020
0
703
1
please help
If x(a + b) + y(a - b) = 2 and ax + by = (a^2 + b^2)/(a^2 - b^2), then express 1/x + 1/y in terms of a and b.
●
Guest
May 19, 2020
0
688
0
What are ALL the solutions of the equation cscxtanx=2√3/3 on the interval [0,2π)?
What are ALL the solutions of the equation csc x tan x=2√3/3 on the interval [0,2π)? List all the correct solutions from the box.
_____
π/6 π/4 π/3 π/2 2π/3 3π/4 5π/6 π
read more ..
Guest
May 19, 2020
0
798
1
The terminal ray of angle θ drawn in standard position passes through (−1,3). What is the value of cscθ?Enter answer in simplest form
The terminal ray of angle θ drawn in standard position passes through (−1,3). What is the value of cscθ? Enter the answer in simplest form
●
Guest
May 19, 2020
+1
601
0
+154
2.help
2.
p and q are complex numbers such that |q|=4√5 and |p+q|=9√2.
On what interval must |p| fall on?
[9√10/20,∞)
read more ..
whatisthis1010
May 19, 2020
0
392
0
Help!
https://web2.0calc.com/questions/help-with-graphing_3
Guest
May 19, 2020
0
516
1
Help
1.In the diagram, sin A = 0.8. Find tanC
https://www.google.com/url?sa=i&url=https%3A%2F%2Fsocratic.org%2Ftrigonometry%2Fright-triangles%2Fsolving-right-triangles&psig=AOvVaw1uDSFJznVKxt4c0zN8CZBN&ust=1590014039069000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCMCpkYT-wOkCFQAAAAAdAAAAABAD
read more ..
●
Guest
May 19, 2020
0
966
1
I need help ASAP PLEASE
The ratio of the number of cups of yellow paint to the number of cups of blue paint that Greg mixed to make a shade of green paint is 2:1.
Part A: Write a sentence to describe the number of cups of yellow paint that Greg mixed with each cup
read more ..
●
Guest
May 19, 2020
0
562
1
help please
Simplify cos(2 arcsec(2)).
●
Guest
May 19, 2020
0
715
4
Help due today
https://web2.0calc.com/questions/help_98409
https://web2.0calc.com/questions/dont-understand
●
●
●
●
Guest
May 19, 2020
0
1
756
1
help
By adding the same constant to each of the numbers 20, 50, 100, we get a geometric sequence. Find the common ratio of the geometric sequence.
●
Guest
May 19, 2020
0
463
0
help physics
1.Predict the frequency of a tuning fork that emits a sound with a wavelength of 0.385 m.
2.A fork displays a reading of 384 Hz. Calculate the wavelength of the sound as it travels through .
How would I solve these questions??
read more ..
Guest
May 19, 2020
0
795
1
help
1.] In ABC, sin A : sin B : sinC = 2 : 3 : 4. Find cos(A + C).
geno3141
●
Guest
May 19, 2020
0
429
1
geometry
Let AB be a diameter of a circle. Let C and D be points on the circle, on opposite sides of diameter AB. If OA = 5, and BC = 6, then find tan angle BDC.
●
Guest
May 19, 2020
0
459
3
help
The circumference of a circle is pi^2. Find the length of a side of a square inscribed in the circle.
●
●
●
Guest
May 19, 2020
0
798
3
+223
Help! All Help Appreciated
Find all complex numbers z such that z^4=-4
Note: All solutions should be expressed in the form a+bi, where a and b are real numbers.Please write your answer in complete sentences.
Thanks in Advance!
●
●
●
CPhilFanboy
May 19, 2020
0
692
5
I need help on this
A hollow iron pipe is 2 m long. Its external diameter is 10 cm and it is 1 cm thick. Calculate the weight of
the pipe if iron weighs 8.2 g/cm3
.
●
●
●
●
●
Guest
May 19, 2020
«
latest
9505
9504
..
6663
6662
6661
6660
6659
..
2
1
»
Post New Question
0 Online Users
Top Users
+130544
CPhill
moderator
+33665
Alan
moderator
+15127
asinus
moderator
+2248
Bosco
+1808
blackpanther
+850
cooIcooIcooI17
+762
history
+448
HiylinLink
+267
CInsbstnkng
+114
ikleyn
+113
thatgirlaj
Sticky Topics
Some guidelines for question askers.
What is Happening 5
Again a number puzzle. Multiply in writing.
Loads of fun printable number and logic puzzles
¤¤¤¤Welcome To Web2.0calc¤¤¤¤
How to display latex properly
Feature Questions 1 - Started 8th May 19
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
/calculator/bsh9ex1zxj
Historical post!
What is happening? Wrap #4
Great Questions to Learn From 2
Great Answers to Learn From
Reference Material
Information for new people.