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}
192852 Questions
0
84
1
+77
Coordinate Plane Question
A triangle in the coordinate plane has vertices at (−4, 0), (6, 0) and (0, 5). The line y = 5 4 x + c, where c is a positive number, divides the triangle into a trapezoid and a smaller triangle whose areas, respectively, are in the ratio 5:4. What is the
read more ..
●
Frooglie
Jan 24, 2021
0
98
9
+31
HELP ASAP
Suppose ten distinct, positive integers have a median of 10. ("Distinct integers" means that no two integers are the same.)
What is the smallest the average of those ten integers could be?
P.S. When you are answering, please
read more ..
●
●
●
●
●
●
●
●
●
skc123
Jan 24, 2021
+1
87
6
+272
More speed problems...thank you
A. Two trains are currently 4 miles apart travelling in opposite direction on adjacenttrain tracks. The east-bound train is going at a speed of 25 miles per hour. Thewest-bound train goes at more than twice the speed at 55 miles per hour. They will
read more ..
●
●
●
●
●
●
Potatobird
Jan 24, 2021
+1
62
1
+272
The airports' walkway
To save energy, the speed of the airport moving walkway was slowed down by 10% and as a result it takes an extra 7 seconds for it to complete the “trip”. How long, inseconds, does it take to complete the trip after the slow down?
read more ..
●
Potatobird
Jan 24, 2021
0
68
1
quadratic
The equation y = x^2 - 18x - 33 describes the height (in feet) of a ball tossed up in the air at 26 feet per second from a height of 105 feet above the ground. In how many seconds will the ball hit the ground? Express your answer as a decimal rounded to
read more ..
●
Guest
Jan 24, 2021
0
69
2
Confused
Let G be the center of equilateral triangle XYZ. A dilation centered at G with scale factor -4/3 is applied to triangle XYZ, to obtain triangle X'Y'Z'. Let A be the area of the region that is contained in both triangles XYZ and
read more ..
●
●
Guest
Jan 24, 2021
0
70
2
+84
Help! It's due today!!
What is the sum of all the integers between -12.1 and 3.3?
●
●
kanisan
Jan 24, 2021
0
65
1
help plz
A box has a total surface area of 100. The length of the box is equal to twice its width, as well as equal to 8 less than its height. What is the height of the box?
●
Guest
Jan 24, 2021
0
79
1
+115
Off Topic
Can I post basic physics questions here?
Also how do I mark a post as off topic... I can't seem to find the option
●
Drazil
Jan 24, 2021
0
54
0
function
Let
f(x) = x + 3 if x <= 0
f(x) = 2x + 5 if x > 0
read more ..
Guest
Jan 24, 2021
0
88
1
Janes salary
Janes Salary is increased by 6% to £33708.
How much was her salary before the rise? £...
●
Guest
Jan 24, 2021
0
56
0
algebra problem
Consider the system of quadratic equations y =3x^2 - 6x, y = 2x^2 + x - c, where c is a real number.
(a) For what value(s) of c will the system have exactly one solution (x,y)?
read more ..
Guest
Jan 24, 2021
0
52
0
function
The function f:R -> R satisfies
f(x)f(y) = f(x + y)
for all real numbers x and y. Find all possible functions f.
Guest
Jan 24, 2021
0
58
1
algebra
Determine the unique pair of real numbers (x,y) satisfying (3x^2 + 5)(2y^2 + 8) = 40.
Enter your answer as an ordered pair in the format (x,y), where x and y are replaced by appropriate numbers.
●
Guest
Jan 24, 2021
+1
121
13
Math
2 snowplows can clear a road 12km x 4 m in 3 hours. How long will take for 10 snowplows to clear a road 2km x 12m.
My solution is 18 minutes but in book answer is 9 minutes. Am I wrong or there is error in book?
read more ..
●
●
●
●
●
●
●
●
●
●
●
●
●
Guest
Jan 24, 2021
0
85
1
quadratic
The equation y = -6t^2 + 51t describes the height (in feet) of a projectile launched from the surface of Mars at 51 feet per second. In how many seconds will the projectile first reach 180 feet in height?
●
Guest
Jan 24, 2021
+1
96
1
+272
Linda's drive
Linda drove 50 miles from San Jose to San Francisco in 90 minutes. For the first 30minutes, without much traffic, her average speed was 60 miles an hour. In the second 30 minutes, due to a traffic accident along US 101, her average speed dropped to 35miles
read more ..
●
Potatobird
Jan 24, 2021
+1
108
1
+272
Julian's art
For his art project, Julian wanted to make a pixel art by completely covering the 2-feet-by-3-feet poster board with colored stickers that measure 1.5-inches-by-1.5-inches without any overlap.How many stickers would Julian need?
read more ..
●
Potatobird
Jan 24, 2021
0
87
2
question on incircle
Triangle ABC is equilateral with side length 1. Let P be a point on the incircle of triangle ABC. Compute PA^2 + PB^2 + PC^2.
●
●
Guest
Jan 24, 2021
0
145
0
solid mensuration
he base of a right pyramid is a regular hexagon of side 4cm and its slant surfaces are inclined to the horizontal at an angle of 30 degrees. Find the volume of the pyramid. *
a.27.713 cu. cm
b.28.87 cu. cm
read more ..
Guest
Jan 24, 2021
0
106
1
how to do square root
The quantity sqrt(45) + 2*sqrt(5) + sqrt(360)/sqrt(2) can be expressed as sqrtN, where N is an integer. Find N.
●
Guest
Jan 24, 2021
-2
95
0
+5
Couple of quadratic questions
Deleted.
We are not here to do all your homework for you.
COOKIEnomnom
Jan 24, 2021
«
latest
7713
7712
..
7379
7378
7377
7376
7375
..
2
1
»
Post New Question
60 Online Users
Top Users
+117930
CPhill
moderator
+112939
Melody
moderator
+32057
Alan
moderator
+31205
ElectricPavlov
+22017
geno3141
+12510
Omi67
moderator
+11279
asinus
moderator
+9280
hectictar
+8455
MaxWong
+5261
rarinstraw1195
+3103
admin
administrator
Sticky Topics
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
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