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All Questions
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152667 Questions
0
66
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Hello, I just have one question with three short parts, I was hoping I could recieve some help. I'd appreciate it, thanks. :)
Hello, I just have one question with three short parts, I was hoping I could recieve some help. I'd appreciate it, thanks. :)
(Thanks so much for your help).
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Guest
May 26, 2019
0
83
2
How many positive 3-digit numbers are multiples of 20, but not of 55?
How many positive 3-digit numbers are multiples of 20, but not of 55?
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Guest
May 26, 2019
0
140
1
Otto's investment portfolio consisted of shares of internet stock and copper stock. During the year, the value of his internet shares increa
Otto's investment portfolio consisted of shares of internet stock and copper stock. During the year, the value of his internet shares increased 10%,but the value of his copper shares decreased from $10,000 to $9,000. During the same year, the total
read more ..
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Guest
May 26, 2019
-1
116
6
Help Please!
1) Determine the smallest non-negative integer that satisfies the congruences:
a = 2 (mod 3)
a = 4 (mod 5)
a = 6 (mod 7)
a = 8 (mod 9)
read more ..
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Guest
May 26, 2019
0
104
1
+1206
Irrational Roots
There is a unique polynomial P(x) of degree 4 with rational coefficients and leading coefficient 1 which has as a root. What is P(1)?
I know one part of it is already.
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Lightning
May 26, 2019
0
83
1
Fifty numerical data points have a mean of 20. If each data point is doubled and combined with the original data points to form 100 data poi
Fifty numerical data points have a mean of 20. If each data point is doubled and combined with the original data points to form 100 data points, what is the numerical average of the combined data?
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Guest
May 26, 2019
+1
149
1
+322
help?
The number N is a multiple of 7. The base 2 representation of N is 10110101010101ABC110.
Compute the ordered triple of digits (A,B,C).
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Badada
May 26, 2019
0
91
5
Prove identity
Hi, please help me prove an identity..
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Guest
May 26, 2019
0
112
2
+142
Relations between Angles and sides of a triangle
If in a triangle ABC, ab = c2 prove that
cos(A - B) + cos C + cos 2C = 1
NB - could only solve if a and b are equal to c [equilateal]...but not sure if correct
read more ..
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OldTimer
May 26, 2019
May 25, 2019
-1
114
3
+299
Please Help Urgent !!!
deleted
Do your own homework!
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Nerd123
May 25, 2019
0
69
2
why are there decimal numbers
why are there decimal numbers
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Guest
May 25, 2019
0
89
3
Help!
Deleted - just one question per post thanks.
3) How many positive integers less than 1000 have at least one digit of 0?
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Guest
May 25, 2019
+1
112
4
Probability Homework Help
What is the probability that a randomly selected three-digit number is divisible by 11?
I know that the divisibility rule for 11 is to take the alternating sum of the digits in the number and see if it's divisible by 11, but
read more ..
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Guest
May 25, 2019
+8
105
1
+770
Immediate help needed Please
Help me please on this
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travisio
May 25, 2019
0
102
2
help appreciated
Let A be a matrix and x be a non-zero vector such that
A x = 2 x.
Then we have that
A^7 x = a x
read more ..
Rom
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Guest
May 25, 2019
0
146
4
+133
Help
Find the ordered pair of real numbers such that the cubic polynomials and have two distinct roots in common.
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Havingfun
May 25, 2019
0
134
3
+322
Long Question About Mods
1.Find the inverse of 7 modulo 13 (expressed as a residue between 0 and the modulus
2.Find the inverse of 8 modulo 35 (expressed as a residue between 0 and the modulus)
3.Find the inverse of 3 modulo 100 (expressed as a residue between 0
read more ..
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Badada
May 25, 2019
0
87
1
Find p-value
how do I find the p-value with this calculator? I watched a youtube video and it said I have to use 2nd distribution and I cannot find that. help please!
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Guest
May 25, 2019
0
92
2
Help please??
A proportional relationship is represented by the equation 2x=18y. If y=kx, where k is the constant of proportionality, what is the value of k?
Answers could possibly be 1/9, 1/2, 2, 9 (multiple choice)
read more ..
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Guest
May 25, 2019
0
132
2
+8
Solve the following system of equations:
Solve the following system of equations:
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GAMEMASTERX40
May 25, 2019
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