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All Questions
^{+0}
230410 Questions
0
3
0
+617
I need help plz
Simplify the expression
\frac{3}{\sqrt{2}} + \frac{1}{\sqrt{18}} - \frac{6}{\sqrt{3}} + \frac{9}{\sqrt{2}}
ABJeIIy
Apr 1, 2024
0
3
0
+617
help me plz
Let $r$ and $s$ be the roots of $2x^2 + 5x - 13 = x^2 - 4x + 7.$ Find $r^2 + s^2.$
ABJeIIy
Apr 1, 2024
0
5
0
+617
help need help
Simplify the expression
\frac{1}{\sqrt{36}} - \sqrt{27} - \frac{1}{\sqrt{27}} + \frac{1}{\sqrt{18}}.
ABJeIIy
Apr 1, 2024
0
6
0
+842
Algebra
What is the smallest positive integer value of n such that (√3/2-sqrt(2)/2*i)^n is real?
Akhain1
Apr 1, 2024
0
2
0
+842
Algebra
Will and Grace are canoeing on a lake. Will rows at $50$ meters per minute and Grace rows at $30$ meters per minute. Will starts rowing at $2$ p.m. from the west end of the lake, and Grace starts rowing from the east end of the lake at $2{:}45$ p.m.
read more ..
Akhain1
Apr 1, 2024
0
3
1
+842
Algebra
At a cafeteria, Mary orders two pieces of toast and a bagel, which comes out to 3.15. Gary orders a bagel and four muffins, which comes out to 7.85. Larry orders a piece of toast, two bagels, and three muffins, which comes out to 9.75.
read more ..
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Akhain1
Apr 1, 2024
0
3
0
+617
help me now
Fill in the blank with a constant, so that the resulting expression can be factored as the product of two linear expressions:
2mn - 21m + 6n + 15m - 5n + ___
ABJeIIy
Apr 1, 2024
0
2
0
+617
Need help now
Find the number of ordered pairs $(a,b)$ of integers such that
\frac{a + 2}{a + 5} = \frac{3b}{5}.
ABJeIIy
Apr 1, 2024
0
3
0
+617
Really need help
Find the area of the region that is enclosed by the graph of the equation
4x^2 - 12x + 4y^2 + 56y - 491 = 8x - 16y + 301
ABJeIIy
Apr 1, 2024
0
5
0
+617
help help help
Let $B$ be the reflection of $A$ over the line $y = \frac{1}{2} x + 2$. Find the coordinates of $B$ if $A = (5,-1)$.
ABJeIIy
Apr 1, 2024
0
5
0
+617
help help
A line and a circle intersect at A and B. Find the coordinates of the midpoint of \overline{AB}.
The ilne is y = 3x - 2, and the circle is (x - 4)^4 + (y - 5)^2 = 68.
ABJeIIy
Apr 1, 2024
0
4
0
+617
plz help fast
Let $x$ and $y$ be real numbers such that $x^2 + y^2 = 4x + 12y.$ Find the largest possible value of $x + y.$ Give your answer in exact form using radicals, simplified as far as possible.
ABJeIIy
Apr 1, 2024
0
3
0
+617
help meeeee!
Let $a$ and $b$ be the roots of $x^2 + 7x - 4 = -x^2 + 9x + 6$. Find $(a + 3) + (b + 3).$
ABJeIIy
Apr 1, 2024
0
3
1
+617
help i really need help!
Solve the inequality x^3 + 4x > 5x^2 + 28x + x^3. Write your answer in interval notation.
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ABJeIIy
Apr 1, 2024
0
4
0
+617
help plz! I need help!
For an integer n, the inequality
x^2 + nx + 15 < -21 - 7x + x^2
has no real solutions in x. Find the number of different possible values of n.
ABJeIIy
Apr 1, 2024
+1
3
1
+178
please help!!
Let , , and be real numbers such that What is the largest possible value of ?
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ABJelly
Apr 1, 2024
+1
4
1
+178
please help!!
Let . Evaluate . (This sum has 1000 terms, one for the result when we input each integer from 1 to 1000 into f.)
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ABJelly
Apr 1, 2024
+1
4
1
+178
please help!!
Find all values of t such that . If you find more than one value, then list the values you find in increasing order, separated by commas.
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ABJelly
Apr 1, 2024
0
4
0
+618
Polygon
Two regular pentagons and a regular decagon, all with the same side length, can completely surround a point, as shown.
An equilateral triangle, a regular dodecagon, a square, and a regular n-gon, all with the same side length, also
read more ..
bingboy
Apr 1, 2024
0
4
0
+209
Counting
Find the number of solutions to
x_1 + x_2 + x_3 + x_4 + x_5 + x_6 + x_7 \le 10
in nonnegative integers, where x_2 is even and x_5 is odd.
fjeihqoO
Apr 1, 2024
0
4
0
+209
counting
Miyu is giving out $8$ identical chocolates to her $5$ friends, including Dhruv. All possible distributions are equally likely. What is the probability that Dhruv gets at least $6$ chocolates?
fjeihqoO
Apr 1, 2024
Mar 31, 2024
0
2
1
+209
Probability
Raina places the following balls into a bag. She then draws three balls out of the bag, one at a time, without replacement. What is the probability that the colors of the balls alternate?
There are 3 orange balls and 2 purple
read more ..
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fjeihqoO
Mar 31, 2024
0
1
1
+209
Counting
I have $3$ different mathematics textbooks, $2$ different psychology textbooks, and $2$ different chemistry textbooks. In how many ways can I place the $7$ textbooks on a bookshelf, in a row?
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fjeihqoO
Mar 31, 2024
0
4
0
+158
Algebra
Let S be the set of all real numbers of the form
(a_1)/(3) + (a_2)/(3^2) + (a_3)/(3^3) + ...
where (a_i) is equal to either 0 or 1 or 2 for each i.
(a) Is the number 1/4 in the set S?
read more ..
siIviajendeukie
Mar 31, 2024
+1
2
2
+158
Algebra
Compute
1 + \frac{3}{6} + \frac{15}{6^2} + \frac{27}{6^3}
●
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siIviajendeukie
Mar 31, 2024
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