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Post New Question
All Questions
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232716 Questions
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281
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((x-3)/sqrt(x-3))*((sqrt(x+3)/4) = 1
((x-3)/sqrt(x-3))*((sqrt(x+3)/4) = 1
Guest
Aug 20, 2020
0
395
1
geometry
In triangle ABC, the heights are 40, 48, and 48. Find the perimeter of the triangle.
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Guest
Aug 20, 2020
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452
1
plz help
Find the value of x that makes ΔXYZ~PQR
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Guest
Aug 20, 2020
0
483
1
trig problem
The right triangle above has side lengths a and b such that 0 < b < a. One of its angles measures arctan(a/b). What is cos(arctan(a/b))?
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Guest
Aug 20, 2020
0
619
3
number theory help this quesiton is due soon
The units digit of a perfect square is 6. What are the possible values of the tens digit?
HINT: Let our perfect square be n^2. What can the units digit of be?
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Guest
Aug 20, 2020
0
655
1
can someone solve this one for me?
The first term of an arithmetic sequence is 2. The sum of the third and the sixth terms is 25. What is the fourth term?
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Guest
Aug 20, 2020
0
302
0
help with number theory
there are x people at a party and y cans of drinks. Given that 1 < x < 10 and 10 < y =< 30 and that y/x is an integer, how many combinations for number of adults and drinks are there?
Guest
Aug 20, 2020
0
499
1
need help!
I have a basket of fruit that contains only bananas, apples and oranges. The basket contains 2 bananas, 6 red apples and 8 green apples. If the total number of pieces of fruit is three times the number of apples in the basket, how many oranges
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Guest
Aug 20, 2020
0
448
1
HELP
Find the value of , , such that . (Give your answer in degrees, not radians.)
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Guest
Aug 20, 2020
+2
560
1
+382
Chemistry Question
What is the formula for fluid mass?
off-topic
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hellospeedmind
Aug 20, 2020
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303
0
help please
How many ways are there to place a domino (2 by 1 rectangle) on an 8 by 8 chessboard?
Guest
Aug 20, 2020
0
711
2
+140
helpp i need help on these two problems!
Simplify .
The equation describes the height (in feet) of a ball thrown downward at 10 feet per second from a height of 56 feet from the surface from Mars. In how many seconds will the ball hit the ground? Express your answer
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Creampuff
Aug 20, 2020
0
293
1
please help
a. Find the area of the region enclosed by the graph of x^2 + y^2 = 2x - 6y + 6
b. The line is an axis of symmetry of the graph of y = ax^2 + bx + c. b/a Find b/a
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Guest
Aug 20, 2020
0
518
2
please help
What are angle ABC and DBC?
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Guest
Aug 20, 2020
0
454
3
+109
Compute the sums of the following:
(a) Compute the sum
(b) Compute the sum
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dp1806
Aug 20, 2020
0
799
1
Just stuck on this oneeeee problem. Any help is greatly appreciated. Thanks
Consider the projection matrix $\mathbf{P}$ that satisfies
\[\mathbf{P} \mathbf{v} = \text{Projection of $\mathbf{v}$ onto } \begin{pmatrix} 4 \\ 1 \end{pmatrix}.\]
Use the picture below to find vectors with integer
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Guest
Aug 20, 2020
0
311
1
counting
You toss two standard, fair, six-side dice. There are 36 different results when tossing the two die. How many of those 36 possibilities will result in a total value that is divisible by either two or three? In other words, if you roll
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Guest
Aug 20, 2020
0
754
1
+212
Find one pair $(x,y)$ of real numbers such that $x + y = 4$ and $x^3 + y^3 = 100.$
Find one pair $(x,y)$ of real numbers such that $x + y = 4$ and $x^3 + y^3 = 100.$
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Filliqq
Aug 20, 2020
Aug 19, 2020
0
320
1
please help
Certain digits appear the same when reflected across horizontal lines or vertical lines. Which two-digit numerals appear the same when reflected across a horizontal line?
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Guest
Aug 19, 2020
0
514
1
+287
Please Help (math)
Thanks in advance I Think F or E is the answer.
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Mathisgood
Aug 19, 2020
0
382
1
question on fibonacci sequence
What is the remainder when the Fibonacci number F_{2006} is divided by 5?
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Guest
Aug 19, 2020
0
632
1
hyperbola?
Conver the equation 6x^2 - 3y^2 + 12x - 18y - 3 = 0 to the standard form of a hyperbola.
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Guest
Aug 19, 2020
0
1064
2
+12
help...
Eric builds a small pyramid for a school project. His pyramid has a height of twelve inches and a square base that measures ten inches on each side. Eric wants to find the smallest cube-shaped box to put his pyramid in so that he can safely bring it to
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nuclear0wl
Aug 19, 2020
0
1224
2
somebody please help
Find angle EBC.
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Guest
Aug 19, 2020
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