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
230619 Questions
+1
1571
1
+394
Use 3.14 as an approximation
The shaded area of the figure may be found by subtracting the area of the unshaded portion from the total area of the figure. Use this approach to find the area of the shaded region. Use 3.14 as an approximation for
piπ. Two equally sized circles
read more ..
●
ladiikeiii
Nov 29, 2017
0
1569
1
+394
Assume that the area of the parallelogram ABCD is 140 square inches.
Assume that the area of the parallelogram ABCD is 140 square inches. What is the area of triangle ABE? A parallelogram ABCD with a horizontal side AB of the length 14. A triangle ABE with E on the horizontal side DC of the parallelogram ABCD. 14
read more ..
●
ladiikeiii
Nov 29, 2017
0
6425
3
+394
Find the measure of each angle in triangle ABC.
Find the measure of each angle in triangle ABC.
Triangle A B C has angles labeled as follows: A, (x minus 26) degrees; B, (2x minus 227) degrees; C, (one half x plus 13) degrees.
left parenthesis 2 x minus 227 right parenthesis degrees(2x−227)°
read more ..
●
●
●
ladiikeiii
Nov 29, 2017
0
662
1
+394
help with this
help with this
@CPhill
●
ladiikeiii
Nov 29, 2017
+1
2181
2
+394
What is the diagonal of a rectangular room which measures 6 feet by 22 feet?
What is the diagonal of a rectangular room which measures 6 feet by 22 feet?
The length of the diagonal is ___ feet ___ inches.
●
●
ladiikeiii
Nov 29, 2017
+1
1204
2
+394
For any integer n greater than 1,
For any integer n greater than 1,
left parenthesis 2 n comma n squared minus 1 comma n squared plus 1 right parenthesis2n,n2−1,n2+1
is a Pythagorean triple. Use this pattern to find the Pythagorean triple generated when
nequals=7.
read more ..
●
●
ladiikeiii
Nov 29, 2017
+1
998
1
+394
If m is an odd positive integer greater than 1, then
If m is an odd positive integer greater than 1, then
left parenthesis m comma StartFraction m squared minus 1 Over 2 EndFraction comma StartFraction m squared plus 1 Over 2 EndFraction right parenthesism,m2−12,m2+12
is a Pythagorean
read more ..
●
ladiikeiii
Nov 29, 2017
+3
1474
6
+633
Magic Numbers
I was reading this book and kept noticing that one number kept popping up - 1089. It turns out that when you multiply it, the numbers move sequentially through the columns.
1 - 1089
2 - 2178
3 - 3267
read more ..
●
●
●
●
●
●
helperid1839321
Nov 29, 2017
+4
1471
2
+633
Who did it, and why?
Someone has been going around the front page and giving everything a thumbs down for the first 100 questions, maybe more (I haven't checked the other pages yet.). Just a friendly reminder that a thumbs down should be used only if the question has something
read more ..
off-topic
●
●
helperid1839321
Nov 29, 2017
+1
1364
1
+956
@CPhill
A swing has a maximum height of 2 m and a minimum height of 0.5 m and it takes 3 seconds to get from the maximum height to the minimum height. Approximate the instantaneous rate of change 1 second into the fall using the difference quotient when h is 0.01.
read more ..
●
Julius
Nov 29, 2017
+1
1126
2
+394
I keep dividin this wrong
Find the area of the quadrilateral ABCD, if angles A and C are right angles.
Quadrilateral A B C D has side A B that falls slowly from left to right, side B C that falls quickly from left to right, side C D that falls slowly from right to
read more ..
●
●
ladiikeiii
Nov 29, 2017
+1
743
2
+394
help
A house is 19 ft tall. Its shadow is 50 ft long at the same time the shadow of a nearby building is 325 ft long. Find the height of the building.
The height of the building is
CPhill
●
●
ladiikeiii
Nov 29, 2017
0
685
1
+1495
Help me Please
Help me Please
solve the fraction
x/4 - 5y/2 + 3/x
●
ManuelBautista2019
Nov 29, 2017
+2
765
1
+394
On a photograph of a triangular piece of land
On a photograph of a triangular piece of land, the lengths of the three sides are 4 cm, 6 cm, and 9 cm, respectively. The shortest side of the actual piece of land is 240m long. Find the lengths of the other two sides.
The length
read more ..
●
ladiikeiii
Nov 29, 2017
+2
2784
4
+225
How high is a tree that casts a 35 -ft shadow at the same time a 9 -ft post
How high is a tree that casts a 35 -ft shadow at the same time a 9 -ft post
casts a shadow which is 7 -ft
long?
read more ..
CPhill
●
●
●
●
cassie19
Nov 29, 2017
+2
1512
0
+225
Find all unknown angle measures in the pair of similar triangles. Note that the triangles are not drawn to scale.
Find all unknown angle measures in the pair of similar triangles. Note that the triangles are not drawn to scale.
Triangles T V W and X Y Z have the same shape and orientation. In triangle T V W, the angles are labeled as follows: T, unlabeled;
read more ..
cassie19
Nov 29, 2017
+2
1520
2
+956
@CPhill
The crank on a pencil sharpener's max height reaches to 3 cm above its centre axis which is 1 m off the ground and can be spun 4 times in a second. Which function models the crank height, h(t), where t is in seconds?
a) h(t)=0.03sin(8πt)+1
read more ..
●
●
Julius
Nov 29, 2017
+2
1218
1
+225
how do you even do this
how do you even do this
Find all unknown angle measures in the pair of similar triangles. Note that the triangles are not drawn to scale.
In triangle A B C, the angles are labeled as follows: A, unlabeled; B, 85 degrees;
read more ..
●
cassie19
Nov 29, 2017
+2
501
1
Solve for r
solve for r
0= r-10
read more ..
●
Guest
Nov 29, 2017
+2
5489
2
+225
Use the diagram to find the measure of exterior angle BCD.
Use the diagram to find the measure of exterior angle BCD.
Triangle A B C has angles labeled as follows: A, (101x + 2) degrees; B, 34x degrees; C, unlabeled. Point C lies on Ray A D. The outside angle B C D is labeled (138x - 1) degrees. left parenthesis
read more ..
●
●
cassie19
Nov 29, 2017
+2
734
0
+225
Find the measure of each angle in triangle ABC.
Find the measure of each angle in triangle ABC.
Triangle A B C has angles labeled as follows: A, (x minus 26) degrees; B, (2x minus 227) degrees; C, (one half x plus 13) degrees. left parenthesis 2 x minus 227 right parenthesis degrees(2x−227)°
read more ..
cassie19
Nov 29, 2017
+2
3757
1
+225
In a triangle ABC, the measure of angle B is 5 times the measure of angle A, and the measure of angle C is
In a triangle, ABC, the measure of angle B is 5 times the measure of angle A, and the measure of angle C is
2degrees° less than 4 times the measure of angle A. Find the measure of the angles.
Triangle A B C has angles labeled
read more ..
●
cassie19
Nov 29, 2017
+2
700
1
+394
help
help can't find the right answer to 1
●
ladiikeiii
Nov 29, 2017
+2
2850
1
+394
Suppose carpet for a 10ft by 8 ft room costs $300. Find the cost to carpet a room
Suppose carpet for a 10ft by 8 ft room costs $300. Find the cost to carpet a room
20 ft by 16 ft.
The cost to carpet the room is $
●
ladiikeiii
Nov 29, 2017
+2
741
1
+394
help
im not good at math
A hotel is in the shape of a cylinder, with a circular foundation. The circumference of the foundation is
2 times the radius, increased by
read more ..
●
ladiikeiii
Nov 29, 2017
«
latest
9223
9222
..
5116
5115
5114
5113
5112
..
2
1
»
Post New Question
2 Online Users
Top Users
+128475
CPhill
moderator
+118609
Melody
moderator
+33616
Alan
moderator
+14915
asinus
moderator
+9519
MaxWong
+3144
admin
administrator
+2440
GingerAle
+1791
tomtom
+1484
bader
+1101
parmen
+1032
kittykat
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.