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All Questions
^{+0}
228012 Questions
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+663
venn diagrams
The summary of a survey of 500 students listed the following totals:
* 259 students did math homework
* 219 students did English homework
* 238 students did science homework
* 108 students did English and science homework
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sandwich
Sep 11, 2023
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+663
help plz!
Sets $A$ and $B$, shown in the Venn diagram, are such that the total number of elements in set $A$ is twice the total number of elements in set $B$. Altogether, there are $9$ elements in the union of $A$ and $B$, and their intersection has $3$ elements.
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sandwich
Sep 11, 2023
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1
kilometers
0.72 AU in kilometers
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Guest
Sep 11, 2023
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1
how do I find an answer to an equation using watts and meters?
how do I find an answer to an equation using watts and meters?
Equation looks like this:
6.9*10^36 Watts / 4π (5.68* 10^16 meters)^2
How can I put this into the calculator to get the answer
read more ..
ElectricPavlov
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Guest
Sep 11, 2023
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2
+443
Isosceles triangle
In isosceles triangle ABC, we have AB=AC=4. The altitude from B meets AC at H. If AH=2(HC) then determine BC.
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maximum
Sep 11, 2023
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1
+4
present value in investments
Janine is 21 years old. She opens an account that pays 1.25% interest, compounded monthly. She sets a goal of saving $10,000 by the time she is 24 years old. How much must she deposit each month?
ElectricPavlov
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iraimaramirez04
Sep 11, 2023
0
1
1
+113
Even and odd functions
Let $e(x)$ be an even function and let $o(x)$ be an odd function, such that
\[e(x) + o(x) = x^2 + x^3\]
for all $x.$ Let $f(x) = e(x) + o(x).$ Find $f(2).$
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bingboy
Sep 11, 2023
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4
1
solve this equation
6x+99=7x-189x
Bosco
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Guest
Sep 11, 2023
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+113
quadratic
Find the non-zero value of $a$ such that the quadratic equation $ax^2+8x+4=6x-40$ has only one solution.
ElectricPavlov
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bingboy
Sep 11, 2023
0
1
1
+113
digits
All of the digits of a three-digit integer are distinct and non-zero. Furthermore, the three-digit integer is divisible by 25. Find the largest three-digit integer that has these properties.
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bingboy
Sep 11, 2023
0
1
4
divisors
How many integers from 1 to 9 are divisors of the five-digit number 24,551?
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Guest
Sep 11, 2023
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1
+113
interval
Find all real numbers $x$ such that $\frac{-2x+5}{7} + \frac{3x-1}{2}$ is in the interval $[0,1)$.
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bingboy
Sep 11, 2023
0
1
3
quadratic
There is exactly one value of $x$ for which the distance from $(5,6)$ to $(3x-1,ax+5)$ is $4$. If $a \neq 0,$ what is $a$?
Alan
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Guest
Sep 11, 2023
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1
hard sum
Let
\[f(x) = \left\lfloor\frac{2 - 3x}{2x + 8}\right\rfloor.\]
Evaluate $f(1)+f(2) + f(3) + \dots + f(999)+f(1000).$ (This sum has $1000$ terms, one for the result when we input each integer from $1$ to $1000$ into ${}f$.)
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Guest
Sep 11, 2023
Sep 10, 2023
+2
1
8
Wow! Does anybody else think this new AI interface is awful? Posted answers don't appear for a long time.....Q's may show multiple answers
Wow! Does anybody else think this new AI interface is awful? Posted answers don't appear for a long time.....Q's may show multiple answers (or corrections) ....but you cannot see them until a moderator OK's them.....or SOMETIMES AI
read more ..
off-topic
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Guest
Sep 10, 2023
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1
1
help circles
In the diagram, $O$ is the center of a circle with radii $OP=OQ=5$. What is the perimeter of the shaded region?
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Guest
Sep 10, 2023
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3
1
need answer
105p^6 divided by 21p^5
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Guest
Sep 10, 2023
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1
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floor
Find all values of $t$ such that $\lfloor t\rfloor = 3t + 4/5$. If you find more than one value, then list the values you find in increasing order, separated by commas.
Guest
Sep 10, 2023
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1
1
inequalities
(1) Let a_1, a_2, a_3 be real numbers such that
|a_1 - a_2| + 2 |a_2 - a_3| + 3 |a_3 - a_1| = 1.
What is the largest possible value of |a_1 - a_2|?
(2) Let a_1, a_2, a_3, \dots, a_{10} be real numbers such that
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Guest
Sep 10, 2023
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1
1
simplify
simplify ((mn^3)^2)*(((2^-2)(m^-1)(n^3))^-2)
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Guest
Sep 10, 2023
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1
+113
Average
Find the average of all the integer values of $M$ such that $\frac{M}{56}$ is strictly between $\frac{1}{5}$ and $\frac{5}{4}$.
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bingboy
Sep 10, 2023
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4
+16
Need help. Don't understand
Daniel filled 7/12 of a tank with 8 pails of water. Another 4 pails and 3 jugs are needed to fill the tank completely. How many jugs of water can the tank hold?
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jakeviamcknight24
Sep 10, 2023
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