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}
215361 Questions
0
36
2
Right triangles
Determine the value of ? in the figure below.
●
●
Guest
Jul 4, 2022
0
34
1
Logarithms
Find the constant k so that:
log_(y^5) (x^5)= k * log_y(x)
for all positive real numbers y doesn't equal to 1
●
Guest
Jul 4, 2022
+10
44
3
+1105
Pls help. All help appreciated.
The polynomial has distinct roots and . Find .
●
●
●
nerdiest
Jul 4, 2022
0
35
1
Algebra
Let p and q be the two distinct solutions to the equation (x - 5)(2x +9) = x^2 - 13x + 40 + 2x - 24.
What is (p + 3)(q + 3)?
●
Guest
Jul 4, 2022
0
32
1
Trapezoid
Find the perimeter of the trapezoid below.
●
Guest
Jul 4, 2022
0
29
1
Number Theory
Find all positive integers n for which n^2 - 19n + 98 is a perfect square.
●
Guest
Jul 4, 2022
0
46
3
Help is urgent
If u don't know what set is
In the card game Set, each card features a number of shapes, with four attributes:
Number: The number of shapes is 1, 2, or 3.
Color: Each shape is red, purple, or green.
Shape: Each shape is oval,
read more ..
●
●
●
Guest
Jul 4, 2022
0
38
1
Angles
The measures of angles A and B are both positive, integer numbers of degrees. The measure of angle A is a multiple of angle B, and angles A and B are complementary angles. If B = 30 degrees, then what is A?
●
Guest
Jul 4, 2022
0
35
1
Trapezoid
Trapezoid ABCD has base 20 units and base 40 units. Diagonals AC and BD intersect at X. If the area of trapezoid ABCD is 900 square units, what is the area of triangle BXC?
●
Guest
Jul 4, 2022
0
39
1
equation
Find all values of x such that 2x/(x + 2) = -6/(x + 4) + 8x/(x + 4).
●
Guest
Jul 4, 2022
0
32
1
Algebra
Find all values of x such that 9 + 27/x + 8/x^2 = 14/x + 1/x^2. If you find more than one value, then list your solutions, separated by commas.
●
Guest
Jul 4, 2022
0
37
1
Tangents
Circles A and B are externally tangent. Angle PAB is a right angle. Segment PT is tangent to circle B at T. If the radius of circle A is 1 cm and the radius of circle B is 4 cm, what is the
read more ..
●
Guest
Jul 4, 2022
0
32
1
Angles
Segment BD and AE intersect at C, as shown, AB=BC=CD=CE, and \angle A = 2 \angle B. What is the degree measure of angle D?
read more ..
●
Guest
Jul 4, 2022
0
23
0
Algebra
Simplify the following (2y - 1)(4y^10 + 2y^9 + 2y^8 + y^7). Express your answer as a polynomial with the degrees of the terms in decreasing order.
Guest
Jul 4, 2022
+1
46
2
+204
Use completing the square to solve 10r^2 = 45 - 68r.
Use completing the square to solve 10r^2 = 45 - 68r.
●
●
Blizzardshine
Jul 4, 2022
+1
46
3
+204
find the positive constant c that makes 4z^2+cz+0 the square of a binomial.
find the positive constant c that makes 4z^2+cz+0 the square of a binomial.
●
●
●
Blizzardshine
Jul 4, 2022
0
26
0
Number Theory
What is the smallest positive integer n such that 17n = 1234n (mod 7)?
Guest
Jul 4, 2022
0
30
1
Probability
Two real numbers are chosen at random between 0 and 2. What is the probability that the sum of their squares is no more than 3? Express your answer as a common fraction in terms of pi.
BuilderBoi
●
Guest
Jul 4, 2022
0
34
1
Coordinates
This circle passes through the points (-1, 2), (3,2) and (9,0). The center of the circle is at (h,k). What is the value of h+k?
●
Guest
Jul 4, 2022
0
37
1
Fractions and ratios
At a gathering, 1/3 of the people at the gathering are adults. The remaining group of people is divided into boys and girls in the ratio of 5:7. Each boy is given 2 keychains and each girl is given 5 keychains. Each accompanying adult receives 6 keychains.
read more ..
●
Guest
Jul 4, 2022
0
34
1
Parabola
The red parabola shown is the graph of the equation x = ay^2 + by + c. Find a + b + c.
●
Guest
Jul 4, 2022
0
31
1
Help
Luis cut 18 1/2 inches from a rope that was 60 inches long. Write in decimal form the length of the rest of the rope in inches?
●
Guest
Jul 4, 2022
0
30
1
Help
My front lawn measures 2 1/2 yards by 5 1/3 yards. To fertilize it, I need 1/2 ounce of fertilizer per square foot. How much fertilizer must I buy?
●
Guest
Jul 4, 2022
0
34
1
Coordinates
A circle passes through the point (12,0), and is tangent to the y-axis at the point (0,2). Find the radius of the circle.
●
Guest
Jul 4, 2022
0
45
2
counting
In how many different ways can 3 men and 4 women be placed into one group of three people and one group of four people if there must be at least one man and one woman in each group?
●
●
Guest
Jul 4, 2022
«
latest
8613
8612
..
8542
8541
8540
8539
8538
..
2
1
»
Post New Question
5 Online Users
Top Users
+124525
CPhill
moderator
+117737
Melody
moderator
+36430
ElectricPavlov
+33045
Alan
moderator
+13793
asinus
moderator
+9426
hectictar
+3728
Probolobo
+3122
admin
administrator
+2388
GingerAle
+2275
BuilderBoi
+1105
nerdiest
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
https://www.desmos.com/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.