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Post New Question
All Questions
+0
234919 Questions
+1
361
1
Decimal
Write the repeating decimal $0.\overline{515}$ as a fully simplified fraction.
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Guest
Apr 2, 2021
+1
411
1
Decimals
Write $\frac{99}{100} (0.\overline{42})$ as a fully simplified fraction.
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Guest
Apr 2, 2021
+1
417
1
+487
Probability
Brent rolls a fair dodecahedral die with numbers 1,2,3,...,11,12 on its faces. What is the expected number of digits in the number he obtains? Express your answer in a decimal.
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RiemannIntegralzzz
Apr 2, 2021
+1
1369
1
Two wheel gears are connected by a chain....
Two wheel gears are connected by a chain. The larger gear has a radius of 6 centimeters and the smaller gear has a radius of 4 centimeters. The smaller gear completes 28 revolutions in 15 seconds
What is the linear velocity of each
read more ..
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Guest
Apr 2, 2021
+1
415
1
mystery number
I tell you these facts about a mystery number, c:
* 1.2 < c < 1.3
* c can be written as a fraction with one digit for the numerator and one digit for the denominator.
* Both c and 1/c can be written as finite (non-repeating)
read more ..
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Guest
Apr 2, 2021
+1
474
3
+487
Probability
I have two cubes such that, on each cube, three faces are painted red and three faces are painted white. If I roll each of the cubes once, what is the probability that they will land such that there is one red face and one white face up?
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RiemannIntegralzzz
Apr 2, 2021
+1
434
1
is this just math reddit
yea this just seems like reddit but for math
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Guest
Apr 2, 2021
+1
371
1
Decimals
Let $y = 0.(\overline{123}) + (\overline{345})$. When y is written out as a repeating decimal, what is the sum of the digits in a single repeating period? (In other words, what is the sum of the digits covered by the repeat bar?)
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Guest
Apr 2, 2021
+1
373
1
Decimals
Let $x = (0.\overline{6})(0.\overline{06})$. When x is written out as a decimal, what is the sum of the first 15 digits after the decimal point?
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Guest
Apr 2, 2021
+1
406
2
+487
Roots of Unity
What is the smallest positive integer $n$ such that all the roots of $z^4+z^2+1=0$ are $n^{th}$ roots of unity?
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RiemannIntegralzzz
Apr 2, 2021
+1
490
1
help algebra
At the grocery store near Josie's home, Cheerios cost 99 cents per box. The cost of a box of Tasteeos is only 8/9 of the cost of a box of Cheerios. How many cents will Josie have to pay for one box of Tasteeos cereal?
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Guest
Apr 2, 2021
+1
493
1
algebraic inequality
Suppose 1/2 + 1/3 + 1/4 + ... + 1/x > 2.
What is the smallest possible value for x?
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Guest
Apr 2, 2021
+1
416
2
HALP ASAP
A point in space $(x,y,z)$ is randomly selected so that $-1\le x \le 1$,$-1\le y \le 1$,$-1\le z \le 1$. What is the probability that $x^2+y^2+z^2\le 1$?
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Guest
Apr 2, 2021
+2
402
2
rhombus
In In rhombus ZABC, if angle ZAC = 23, find angle ABZ.
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Guest
Apr 2, 2021
+1
538
1
please help! thanks!
the gravitational force of attraction between two bodies is directly proportional to he mass of each body and inversely proportional to the square of distance between the,. if the distance between two bodies is tripledand the mass of each is doubled, what
read more ..
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Guest
Apr 2, 2021
+1
377
1
Trianlges
Find the values of x, y, and z.
RiemannIntegralzzz
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Guest
Apr 2, 2021
+1
525
1
algebra stuff
The graph of the equation x^2 + 4y^2 - 10x + 56y = k is a non-degenerate ellipse if and only if k > a. What is a?
read more ..
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Guest
Apr 2, 2021
0
467
1
Exterior Angles
A side of the triangle below has been extended to form an exterior angle. What is the value of x.
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Guest
Apr 2, 2021
0
482
1
Exterior Angles
A side of the triangle below has been extended to form an exterior angle. What is the value of x.
RiemannIntegralzzz
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Guest
Apr 2, 2021
0
650
1
Rhombus
A rhombus has sides of length 51 units each and a shorter diagonal of length 46 units. What is the length, in units, of the longer diagonal?
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Guest
Apr 2, 2021
0
433
1
number theory
A box contains many candies.
If 3 candies are taken away, the rest can be shared evenly among 7 people.
If 5 are taken away, the rest can be shared evenly among 8 people.
If 3 candies are added, then the box can be shared evenly among
read more ..
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Guest
Apr 2, 2021
0
364
1
Parallelograms
In parallelogram ABCD, the measure of angle ABC is 8 times the measure of angle BCD. How many degrees are in the measure of angle ADC?
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Guest
Apr 2, 2021
+1
449
2
+138
Binomial Distribution
Not to sure how to go about solving this, any help?
Alan
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SpaceTsunaml
Apr 2, 2021
0
420
2
+46
URGENT NEED HELP
Find the equation whose graph is shown below. Write your answer in standard form. (Standard form is $Ax+By = C$, where $A$ is positive, and $A$, $B$, and $C$ are integers with greatest common divisor 1.)
read more ..
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VoidAsks
Apr 2, 2021
0
995
1
In ΔMNO, the measure of ∠O=90, the measure of ∠M=17, and NO = 7.5 feet. Find the length of OM to the nearest tenth of a foot.
In ΔMNO, the measure of ∠O=90°, the measure of ∠M=17°, and NO = 7.5 feet. Find the length of OM to the nearest tenth of a foot.
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Guest
Apr 2, 2021
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