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Post New Question
All Questions
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237665 Questions
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442
3
+99
MATH HELP PLS
Can someone please help me on this problem
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Jxalskdfjarkfhqwio3r
Nov 26, 2021
0
329
1
help with system
For what ordered pair (a, b) are there infinite solutions (x, y) to the system
4x+ay=-8,
12x+y=b
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Guest
Nov 26, 2021
0
481
1
NEED HELP!!!
There is only one set of five prime numbers that form an arithmetic sequence with a common difference of 6. What is the sum of those five prime numbers?
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Guest
Nov 26, 2021
0
268
0
Graphing
Given that the point (9,7) is on the graph of y=f(x), there is one point that must be on the graph of 2y=2*f(2x)+2. What is the sum of coordinates of that point?
Guest
Nov 26, 2021
0
384
1
Binomial Theorem
When we expand (2x+1/2-1/3)^6, what is the coefficient on the x^4 term?
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Guest
Nov 26, 2021
0
346
2
if u got 1 dolloar each 3 seconds for 19 min how much would it be?
if u got 1 dolloar each 3 seconds for 19 min how much would it be?
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Guest
Nov 26, 2021
+14
501
14
+483
help with intermediate algebra
For certain positive integers and the set of complex numbers that satisfy is equivalent to the set of complex numbers that satisfy , where is not divisible by the square of a prime. Find .
read more ..
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abcdefghijklmnopqrst
Nov 26, 2021
-1
429
2
+218
Algebraic Expression for the Nth Term! So hard!
Write an Algebraic expression for the Nth term in the following two sequences.
a. 4, 6, 10, 18, ... n
read more ..
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MathyGoo13
Nov 26, 2021
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383
2
Parabola
Find the vertex of the graph of the equation y=-2x^2+18x-15.
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Guest
Nov 26, 2021
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257
0
help
Solve the following trigonometric equation over the given interval.
Determine EXACT solutions. Show all work to earn full marks.
2cos2x + cosx − 1 = 0, xε [0, 2π]
Guest
Nov 26, 2021
0
295
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Algebra
The roots of x^2 + 8x + 4 are the same as the roots of Ax^2 + x + B . What is A + B?
Guest
Nov 26, 2021
0
259
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Base Numbers
What is the average of all positive integers that have four digits when written in base 3, but three digits when written in base 5? Write your answer in base 10.
Guest
Nov 26, 2021
0
240
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Probability
If I choose four cards from a standard -card deck,with replacement, what is the probability that I will end up with four cards from the same suit?
Guest
Nov 26, 2021
0
302
1
Geometry
In triangle ABC, CA=4sqrt(2), CB=4sqrt(6), and A=60 degrees. What is B in degrees?
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Guest
Nov 26, 2021
0
292
1
geometry
In the regular octagon below, find x.
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Guest
Nov 26, 2021
0
317
0
Probability
The following cards are dealt to three people at random, so that everyone gets the same number of cards. What is the probability that everyone gets a red card?
read more ..
Guest
Nov 26, 2021
0
431
3
Algebra
Let x and y be real numbers such that 2(x^2 + y^2) = x + y + 8. Find the maximum value of x - y.
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Guest
Nov 26, 2021
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332
1
Divisors
How many positive integers divide evenly into either 144 or 196 but not 72?
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Guest
Nov 26, 2021
0
308
3
easy trig i need help on
I want to know how to find sin 135˚.
i mean using a calculator you get 0.707 but i want to know how to do it without a calc.
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Guest
Nov 26, 2021
0
256
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Counting
Of all the four-digit positive integers containing only digits from the set {2,4,6,8} what fraction of them have at least one 8?
Guest
Nov 26, 2021
0
302
1
Counting
A committee of 4 is to be chosen from a group of students. If the number of students in the group increases by 1, the number of different committees triples. How many students are in the group?
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Guest
Nov 26, 2021
0
402
2
Geometry
In concave equilateral pentagon ABCDE, angle A=angle B= 108 degrees. What is the degree measure of E?
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Guest
Nov 26, 2021
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411
1
Combination Question
Carla selects 5 fruit-flavored candies from a bowl containing 6 apple, 5 banana and 4 cherry candies. How many combinations of candies can Carla select?
Can somebody give a full, complete solution? The other thread only had 1-step
read more ..
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Guest
Nov 26, 2021
0
377
1
Quadratic
Find the set of values of k for which this equation has two real roots.
5x^2 + 4k*x + k = 3x + 2
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Guest
Nov 26, 2021
0
374
1
Sequences
There is a sequence of numbers such that every entry except for the first entry is the arithmetic mean of its two neighboring entries. The 27th entry is 94 and the 94th entry is 46. What's the first entry?
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Guest
Nov 26, 2021
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