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Post New Question
All Questions
+0
234927 Questions
+5
443
1
+589
One of the bases of a trapezoid has length $10$, and the height of the trapezoid is $4$. If the area of the trapezoid is $36$, then how long
One of the bases of a trapezoid has length $10$, and the height of the trapezoid is $4$. If the area of the trapezoid is $36$, then how long
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weredumbmaster22
Apr 5, 2021
+4
558
1
+589
Parallelogram $ABCD$ has area $144$, with $AB = 16$ and $BC = 12$. Find the length of segment $DX$.
Parallelogram ABCD has area $144$, with $AB = 16$ and $BC = 12$.
Find the length of segment DX.
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weredumbmaster22
Apr 5, 2021
+4
1059
2
+589
A rhombus with area $840$ has a diagonal of length $40$. What is its side length?
A rhombus with area 840 has a diagonal of length 40. What is its side length?
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weredumbmaster22
Apr 5, 2021
+1
273
1
Please help!
Find all complex numbers such that .
Thanks! :)
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Guest
Apr 5, 2021
+1
415
2
fraction question
If one serving of juice gives you 3/2 of your daily value of vitamin C, how much of your daily value of vitamin c will you get in a 2/3 of a serving of juice? Draw a picture to solve and explain this problem.
Note this question was
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Guest
Apr 5, 2021
+1
287
1
Dire need of help
Find all complex numbers z such that
Note: All solutions should be expressed in the form a+bi, where a and b are real numbers.
I know this has been asked a million times but I'm wondering if someone can explain it clearly
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Guest
Apr 5, 2021
0
417
2
HELP PLS
A pentagon ABCDE is translated north by 40 units to pentagon A1B1C1D1E1. Pentagon A1B1C1D1E1 is then translated east by 50 units to pentagon A2B2C2D2E2. We know the perimeter of pentagon ABCDE is 30 units. Find CC2.
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Guest
Apr 5, 2021
0
370
1
Analytic geometry
The graph of (x - 3)^2 + (y - 5)^2 = 16 is reflected over the line y = 4. The new graph is the graph of the equation x^2 + Bx + y^2 + Dy + 4 = 0 for some constants B, D, and F. Find B + D + F.
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Guest
Apr 5, 2021
+1
362
1
number theory
Given that x, 2/x, y, 2/y, z, and 2/z are all integers, how many distinct values of x + y + z are possible?
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Guest
Apr 5, 2021
+1
390
1
Expected Value
A weather forecast predicts that for each day from Monday to Friday this week, there is a 40% chance of sun, a 35% chance of getting 4 inches of rain, and a 25% chance of getting 10 inches of rain. What is the expected value of the total number of inches
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Guest
Apr 5, 2021
+1
401
2
probability
A point P is randomly selected from the square region with vertices at $(\pm 2, \pm 2)$. What is the probability that is within one unit of (2,2)? Express your answer as a common fraction in terms of pi.
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Guest
Apr 5, 2021
0
582
3
+312
Functions
Suppose that $f(x)$ and $g(x)$ are functions on $\mathbb{R}$ such that the range of $f$ is $[-5,3]$, and the range of $g$ is $[-2,1]$. The range of $f(x) \cdot g(x)$ is $[a,b]$. What is the largest possible value of $b$?
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WillBillDillPickle
Apr 5, 2021
+1
421
1
+487
More Divisor Arithmetic
If we let $f(n)$ denote the sum of all the positive divisors of the integer $n$, how many integers $i$ exist such that $1 \leq i \leq 2010$ and $f(i)=1+\sqrt{i}+i$?
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RiemannIntegralzzz
Apr 5, 2021
+1
807
2
Quick Geometry Help
4)A rectangle that is not a square is rotated counterclockwise about its center. What is the minimum positive number of degrees it must be rotated until it coincides with its original figure?
5)A regular pentagon is rotated counterclockwise
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Guest
Apr 5, 2021
+1
421
1
+487
The Last Digit
What is the sum of the final three digits of the integer representation of $5^{100}$?
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RiemannIntegralzzz
Apr 5, 2021
+1
450
3
+487
Divisor Arithmetic
The proper divisors of 12 are 1, 2, 3, 4 and 6. A proper divisor of an integer $N$ is a positive divisor of $N$ that is less than $N$. What is the sum of the proper divisors of the sum of the proper divisors of 284?
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RiemannIntegralzzz
Apr 5, 2021
+1
412
1
probability
n fair 6-sided dice are simultaneously rolled. The probability that exactly two of them show a number other than 1 is 25/72. Find n.
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Guest
Apr 5, 2021
+1
468
2
+487
The Last Digit
What is the units digit of $2^{2^{1000}}+1$(The $1000^{th}$ Fermat prime)?
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RiemannIntegralzzz
Apr 5, 2021
+1
646
2
+487
Counting Divisors
Some positive integers have exactly four positive factors. For example, 35 has only 1, 5, 7 and 35 as its factors. What is the sum of the smallest five positive integers that each have exactly four positive factors?
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RiemannIntegralzzz
Apr 5, 2021
+1
391
1
help counting
April has four different basil plants and four different tomato plants. In how many ways can she arrange the plants in a row if at least two of the tomato plants must be next to each other?
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Guest
Apr 5, 2021
+1
529
3
+67
Please Help
A function is defined as . What expression can be used to describe ? Express your answer in simplified form in terms of x.
So far, I know that my expression that can be used to describe is .
How do I "express
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shananigans
Apr 5, 2021
+1
431
4
solve the equation for 0
Solve the equation for 0. Select all the values that apply -2√2=4 cos 0
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Guest
Apr 5, 2021
+3
475
5
+50
Solve the trigonometric equation $\tan(2x)=-\frac{1}{4k}$
Let $x\in \left[0,\frac{\pi}{2}\right]$ and $k>0$, solve $\tan(2x)=-\frac{1}{4k}$.
My book solves the equation by saying this "Let $2\alpha \in \left(\frac{\pi}{2},\pi\right]$ the arc such that $2\alpha=\arctan \left(-\frac{1}{4k}\right)$,
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Hitago
Apr 5, 2021
+1
487
2
+487
Least Common Multiple/Greatest Common Denominator
If the least common multiple of two 6-digit integers has 10 digits, then their greatest common divisor has at most how many digits?
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RiemannIntegralzzz
Apr 5, 2021
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