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
231039 Questions
0
222
2
quadratic
The height (in meters) of a shot cannonball follows a trajectory given by h(t) = -4.9t^2 + 18t - 0.4 at time t (in seconds). As an improper fraction, for how long is the cannonball above a height of 4 meters?
●
●
Guest
Aug 3, 2022
0
197
1
Kite (a quadrilateral with two pairs of adjacent equal sides) has coordinates and What is the area of given
Kite
(a quadrilateral with two pairs of adjacent equal sides) has coordinates
read more ..
tuffla2022
●
Guest
Aug 3, 2022
0
213
1
coordinates
The length of the segment between the points (2a, a - 4) and (4,1) is 2*sqrt(30) units. What is the product of all possible values for a?
Alan
●
Guest
Aug 3, 2022
0
212
1
algebra
Find a monic quartic polynomial with rational coefficients whose roots include x = 1 - sqrt(2) and x = 2 + sqrt(7).
●
Guest
Aug 3, 2022
0
203
2
sequence
The product of the first and the third terms of an arithmetic sequence is 9. If all terms of the sequence are positive integers, what is the fourth term?
●
●
Guest
Aug 3, 2022
0
168
1
function
Let
f(x) = k(x) if x >= 1
f(x) = 2- x if x < 1
read more ..
●
Guest
Aug 3, 2022
0
227
4
function
Given that f(x) = x^{-1} + \frac{x^{-1}}{1+x^{-2}}, what is f(f(-2))? Express your answer as a common fraction.
●
●
●
●
Guest
Aug 3, 2022
0
217
3
+140
Counting and Probability Question
How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are distinguishable?
●
●
●
sherwyo
Aug 3, 2022
0
197
1
binomial theorem
If m and n are odd integers, how many terms in the expansion of (m+n)^8 are odd?
●
Guest
Aug 3, 2022
0
201
1
help plz
On the Saturday of a weekend softball tournament, Team A plays Team B and Team C plays Team D. Then on Sunday, the two Saturday winners play for first and second places while the two Saturday losers play for third and fourth places. There are no ties. One
read more ..
●
Guest
Aug 3, 2022
0
175
1
Math
On a map, 0.4 inches is equal to 5 miles. Robert wants to go from where his house is to a soccer field hosting a tournament that is 2 inches away. How far is the actual distance from his house to the soccer field?
tuffla2022
●
Guest
Aug 3, 2022
0
193
1
Mathematics
Jason has 4 books lined up for reading over the holiday break. How many choices does he have for determining the order in which he can read the books?
tuffla2022
●
Guest
Aug 3, 2022
0
170
1
coordinates
FInd the area of the triangle with vertices (1,6), (1,11), and (7,43).
tuffla2022
●
Guest
Aug 3, 2022
0
213
2
distances
A man walks due west 800 feet, then due north 900 feet, then due east 1500 feet, and finally due south 100 feet. How far is he from his starting point?
●
●
Guest
Aug 3, 2022
0
166
1
digit question
There are many four-digit positive integers in which the product of the digits is equal to 6!. What is the sum of the largest and smallest such four-digit numbers?
●
Guest
Aug 3, 2022
+1
261
4
+248
Compute the range of the function $f(x) = \sqrt{x^2}$.
Compute the range of the function $f(x) = \sqrt{x^2}$.
●
●
●
●
Blizzardshine
Aug 3, 2022
0
220
2
trig
In triangle ABC, cos A = 2/3 and cos B = 2/9. Given the perimeter of the triangle ABC is 24, compute the area of triangle ABC.
tuffla2022
●
●
Guest
Aug 3, 2022
Aug 2, 2022
+1
226
2
+248
The function $f (n) = n^2 + n + 17$ for $0 \leq n \leq 15$ generates prime numbers. What is the value of $f (10)-f (9)$?
The function $f (n) = n^2 + n + 17$ for $0 \leq n \leq 15$ generates prime numbers. What is the value of $f (10)-f (9)$?
●
●
Blizzardshine
Aug 2, 2022
0
178
1
Parallelogram
Let ABCD be a parallelogram such that AB=10, BC=14 and angle A = 30degrees. Find the area of the parallelogram.
●
Guest
Aug 2, 2022
0
212
2
coordinates
The line L crosses the x-axis at (-8,0), and the y-axis, forming a triangle of area 16. What is the slope of the line?
●
●
Guest
Aug 2, 2022
0
208
2
Please help with this question-thank you
I have a list of five numbers, where the first number is 1 and the fifth number is 5. Each of the other numbers is equal to one more than the average of its two neighbors. What is the sum of all five numbers in the list?
●
●
Guest
Aug 2, 2022
0
208
2
Help!!!!!
Trapezoid ABCD has area of 45 . Its diagonals intersect at M. Find the area of AMB if AB is parallel to CD and AB=2CD.
●
●
Guest
Aug 2, 2022
0
198
1
Functions
If f(x) = a/(x + 2), solve for the value of a so that f(0)=f^{-1}(8a).
●
Guest
Aug 2, 2022
0
218
4
trig problem
In triangle ABC, we have angle A = 90^\circ and sin B = 5/7. Find cos B.
●
●
●
●
Guest
Aug 2, 2022
0
196
2
help coordinates
For what value of k does the line represented by the equation 1 - ky = -3y + x - 7y contain the point (4,-3)?
●
●
Guest
Aug 2, 2022
«
latest
9240
9239
..
8515
8514
8513
8512
8511
..
2
1
»
Post New Question
1 Online Users
Top Users
+128656
CPhill
moderator
+118608
Melody
moderator
+33616
Alan
moderator
+14929
asinus
moderator
+9627
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1679
wiseowl
+1602
bader
+1149
parmen
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.