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Post New Question
All Questions
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237769 Questions
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765
1
PLZZ HELP!! i have been stuck on this!
is a regular tetraedron (right pyramid whose faces are all equilateral triangles). If is the Midpoint of , then what is ?
Thank you so much for any and all help !
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Guest
Mar 21, 2020
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617
1
please help
Wen has (9x²+24xy+16y²) marbles,where x and y are positive integers.Ha arranges the marbles as a square array. a)Express,in terms of x and y,the number of marbles on each side of the array. b)When x=2 and y=5,find the number of marbles on a side of the
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Guest
Mar 21, 2020
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493
0
Urgent!!! Please Help!!!!!
A, O and B lie on a straight line segment where a = 24°, b = 40° and c = 31°. State the value of the angles: i) ∠AOB ii) ∠ZOB iii) ∠XOY iv) ∠AOY v) ∠YOZ The diagram is not drawn to scale.
Can someone please help as
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Guest
Mar 21, 2020
0
582
1
Heelp!
Suppose $f$ is a polynomial such that $f(0) = 47$, $f(1) = 32$, $f(2) = -13$, and $f(3)=16$. What is the sum of the coefficients of $f$?
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Guest
Mar 21, 2020
0
2807
3
please help
In the diagram below, PQ is tangent at P to the circle with center O, point S is inside the circle, and QS intersects the circle at R. If , QR = RS = 3, OS = 2 and PQ = 6, then find the radius of the circle.
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Guest
Mar 21, 2020
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602
1
help
The first term of an arithmetic progression is 8. If the tenth term is double the second term, the common difference is...
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Guest
Mar 21, 2020
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577
1
help
the masses of John,Gregory and Ethan are 38 1 out of 5,41 1 out of 3 and 52 1 out of 4.find the total mass of the three children.give your answer as a mixed number in it's simplest form.
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Guest
Mar 21, 2020
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422
0
PLS HELP ASAP!!!
Let be the th Fibonacci number, where as usual and Then for some positive integers and Enter the ordered pair
Guest
Mar 21, 2020
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645
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+24
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booksly002
Mar 21, 2020
+1
660
2
+24
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booksly002
Mar 21, 2020
+1
721
2
+24
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booksly002
Mar 21, 2020
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1456
3
help (thanks in advance)
Let f(x)=tan^-1x. Then the domain of f(x) is all real numbers and the range is [-π/2, π/2].
True or False?
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Guest
Mar 21, 2020
0
928
2
help
Let f(x)=sin^-1x . Then the domain of f(x) is [-1,1] and the range is all real numbers.
True or False?
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Guest
Mar 21, 2020
0
868
1
help please
The graph of a cosine function shows a reflection over the x-axis, an amplitude of 3, a period of 2, a phase shift of 0.25 to the right, and a vertical shift of 5 units up.
Which is the equation of the midline?
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Guest
Mar 21, 2020
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484
1
please help asap! thanks
Suppose that and are nonzero real numbers, and that the equation has solutions and . Find the ordered pair
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Guest
Mar 21, 2020
0
694
1
+980
Help please
What is the coefficient of x^3 when 24x^4 + 6x^3 + 4x^2-7x - 5 is multiplied by 6x^3 + 3x^2 + 3x + 4 and the like terms are combined?
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qwertyzz
Mar 21, 2020
0
556
1
help please
A group of 100 people touring europe includes 44 people who speak greek, 59 who speak portuguese& 13 who speak neither language. How many people speak both greek and portuguese.
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Guest
Mar 21, 2020
-1
820
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+226
help
Find the sum
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littlemixfan
Mar 21, 2020
+1
729
1
+537
Geometric Probability
Larry chooses a unit square at random inside a 4x4 square, whose sides are parallel to the 4x4 square. Laura also chooses a unit square at random, whose sides parallel to the 4x4 square. Find the probability that Larry's and Laura's square intersect.
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MathCuber
Mar 21, 2020
-2
879
12
+54
I'm still stuck on this. Someone pls help
An organization has 50 people, and 4 of the people are running for president. Each of the 50 people votes for one of the 4 candidates. How many different vote totals are possible?
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MagnusMathematician
Mar 21, 2020
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516
1
Domains and Functions
Let , and for integers , let
Let be the largest value of for which the domain of is nonempty. For this value of , the domain of consists of a single point
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Guest
Mar 21, 2020
+1
1363
14
+2973
Offtopic: Good Morning
Sup everyone I just wanna wish a good morning to all the wonderful people here!! (or evening). it has been about 3-5 years since i last made a post so yeah i figured why not make one just now. i hope everyone is safe rn at home for quarantine time and that
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TitaniumRome
Mar 21, 2020
-1
2403
9
+54
I'm stuck on this question
I have 8 identical pieces of cherry candy and 7 identical pieces of melon candy. Find the number of ways I can distribute this candy to 4 children.
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MagnusMathematician
Mar 21, 2020
0
720
4
help
What is the equation of the line that passes through the point (-2,7) and has a slope of -2
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Guest
Mar 21, 2020
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