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Post New Question
All Questions
+0
231246 Questions
0
534
2
please help
Multiply and simplify the following complex numbers: (1 + 2i) x (1 - 4i)
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Guest
Apr 19, 2020
0
476
4
+283
Geometry Question
Points A, B, and C are on sides WX, YZ, and XY of rectangle WXYZ such that XA = 4, YB = 18,
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Caffeine
Apr 19, 2020
0
771
2
+83
the powers of coffee in mathematicians
A mathematician works for hours per day and solves problems per hour, where and are positive integers and
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floccinaucini
Apr 19, 2020
+1
487
1
digit
the four-digit numeral 3AA1 is divisible by 9. What digit does A represent?
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Guest
Apr 19, 2020
0
449
1
help
The average of six numbers is 18.2. Four of the numbers are each decreased by five, while two of the numbers are each increased by eight. What is the average of the new set?
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Guest
Apr 19, 2020
0
3121
1
Find the value of x in the diagram below.
Find the value of x in the diagram below.
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Guest
Apr 19, 2020
0
424
2
function
What is the domain and range of this function?
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Guest
Apr 19, 2020
0
641
1
+26
Math problem, please help :D
A mathematician works for hours per day and solves problems per hour, where and are positive integers and
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serendipity
Apr 19, 2020
0
406
2
Geometry Question, Please Help!!!
Points A, B, and C are on sides WX, YZ, and XY of rectangle WXYZ such that XA = 4, YB = 14,
Thank you so much!!!
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Guest
Apr 19, 2020
0
579
4
please help
Allen has four times as many cards as Bob, and Jane has twice as many cards as Allen. Together, Allen and Jane have 468 cards. How many cards do Allen, Jane, and Bob each have?
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Guest
Apr 19, 2020
0
429
1
Please Help!! Urgent!
For what value of a is there a right triangle with sides a+1, 6a, and 6a+1?
Thank you so much!!!
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Guest
Apr 19, 2020
0
1036
7
HELP
An old billionaire is writing his will, and deciding how to distribute his nine estates among his three children. He wants to give each child at least one estate, and he does not want to give any two of his children the same number of estates. In how many
read more ..
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Guest
Apr 19, 2020
0
517
1
help
James’s four-year-old brother is trying to arrange black and yellow Legos in rows. He has 56 yellow Legos and 120 black Legos. He wants to arrange them in rows so that there are either only yellow or only black Legos in each row, and so that each row has
read more ..
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Guest
Apr 19, 2020
0
471
1
Please Help, Geometry Question
Triangle ABC is isosceles with AB = AC. If AC = 20 and [ABC] = 240, then find the perimeter of triangle ABC.
It would mean a lot to me if someone could help. Thanks!!!
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Guest
Apr 19, 2020
+3
522
1
+83
help with math please
Find the number that we can place in the box, so that the resulting expression can be factored as the product of two linear factors.
Thank you! :D
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floccinaucini
Apr 19, 2020
+1
347
1
help
Let A = (4, -1), B = (6, 2), and C = (-1, 2). There exists a point X and a constant k such that for any point P, PA^2 + PB^2 + PC^2 = 3PX^2 + k. Find the contant k.
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Guest
Apr 19, 2020
+1
767
1
help
There are 7 students in a class: 5 boys and 2 girls.
If the teacher picks a group of 3 at random, what is the probability that everyone in the group is a boy?
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Guest
Apr 19, 2020
0
374
1
Determine the value of a:
Determine the value of a:
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Guest
Apr 19, 2020
0
695
1
help please
If x is a real number and , what are the possible values for x? Use interval notation to express your answer.
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Guest
Apr 19, 2020
0
3416
1
help
Cooper and his children went into a grocery store and he bought $6 worth of apples and bananas. Each apple costs $1 and each banana costs $0.50. He bought a total of 10 apples and bananas altogether. Determine the number of apples, x, and the number of
read more ..
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Guest
Apr 19, 2020
0
1029
1
+100
Help please
The mean of five positive integers is 1.5 times their median. Four of the integers are 8,
18, 36 and 62, and the largest integer is not 62. What is the largest integer?
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avamarie
Apr 19, 2020
0
451
1
+86
Train time
Lizzie needs to catch a train. The train arrives randomly some time between 2:00 and 3:00, waits for 20 minutes, and then leaves. If Lizzie also arrives randomly between 2:00 and 3:00, what is the probability that the train will be there when Lizzie arrives?
read more ..
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Coolio
Apr 19, 2020
0
573
1
+981
Evaluate the infinite geometric series:
Evaluate the infinite geometric series:
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qwertyzz
Apr 19, 2020
0
570
1
+73
Help pls
In triangle $ABC$, $AB = 13$, $BC = 14$, and $AC = 15$. Let $M$ be the midpoint of $\overline{BC}$. Find $AM$.
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Hi121529
Apr 19, 2020
+1
406
1
geometry question
What are the values of t and u?
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Guest
Apr 19, 2020
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