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All Questions
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149930 Questions
+1
71
1
5a+c-b-a-b-c(squared)-4a=
5a+c-b-a-b-c(squared)-4a=
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Guest
Feb 15, 2019
0
55
0
greater than and less than symbols
I have a scientific calculator and also using the web 2.0 calculator and I have math problems using the greater than and less than symbols.
How do I go about using the symbols I need in my problems?
For example 9x-7 greater
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Guest
Feb 15, 2019
0
109
1
+59
Combinatorics
Our basketball team has 10 players, including Steve and Danny. We need to divide into two teams of 5 for an intra-squad scrimmage. In how many ways can we do this if Steve and Danny insist on playing on the same team?
Help! BTW the
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LOL314jnl
Feb 15, 2019
+1
93
1
+322
Calculus
If the tangent line to y = f(x) at (7, 2) passes through the point (0, 1), find f(7) and fâ'(7).
f(7)=
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Ruublrr
Feb 15, 2019
0
78
1
fast help
What's the matrix that rotates vectors by counterclockwise?
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Guest
Feb 15, 2019
0
54
0
Consider the vectors $\mathbf{v}, \mathbf{w}, \mathbf{x}$ and $\mathbf{y}$ in the picture below: [asy] unitsize(15); import olympiad; pair
Consider the vectors and in the picture below:
We will project each of these vectors onto , pictured
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Guest
Feb 15, 2019
0
41
0
Help fast please
Consider the vectors , and
If the vectors v.w and x are linearly independent, answer with 0. If they aren't, find coefficients a,b and c, not all 0, such that
and answer with .
Guest
Feb 15, 2019
0
71
2
hELP PLZ
what 4*8
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Guest
Feb 15, 2019
+1
78
1
+87
Physics
1) the flight speed of a small bottle rocket can vary greatly, depending on how well its powder burns. Suppose a rocket is launched from rest so that it travels 12.4 m upwards in 2 s. What is the rocket's net acceleration?
2) The
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BLANK
Feb 15, 2019
-1
63
1
Need help
A survey was conducted for the question "Should Australians export live cattle? Answer yes or no", if 45% said yes and 55% said no, how many people said yes to the survey and how many people said no?
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Guest
Feb 15, 2019
0
38
0
Need help
A survey was conducted for the question "Should Australians export live cattle? Answer yes or no", if 45% said yes and 55% said no, how many people said yes to the survey?
Guest
Feb 15, 2019
+2
116
3
+53
AMC 10B 2019 Question #16
I also had trouble with this question.
16. In ABC with a right angle at C, point D lies in the interior of AB and point E lies in the interior of BC so that AC=CD, DE=EB, and the ratio AC:DE = 4:3. What is the ratio AD:DB?
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heureka
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Mathcounts24
Feb 15, 2019
+4
132
3
+53
AMC 10B 2019 Question #10
10. In a given plane, points A and B are 10 units apart. How many points C are there in the plane such that the perimeter of ABC is 50 units and the area of ABC is 100 units?
A) 0
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Mathcounts24
Feb 15, 2019
0
58
1
help !!
whats -3sqrt6x--3sqrt6x
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Guest
Feb 15, 2019
+1
129
7
+490
Keeps changing his mind
Henry decides one morning to do a workout and walks of the way from his home to his gym. The gym kilometers away from Henry's home. At that point, he changes his mind and walks of the distance from there back toward the gym.
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CalculatorUser
Feb 15, 2019
Feb 14, 2019
0
102
2
(7n)^1/2 in radical form
(7n)^1/2 in radical form
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Guest
Feb 14, 2019
0
105
1
+67
Each minute he moves to one of the dots neighboring the dot he was at, choosing from among its neighbors at random.
An ant moves on the following lattice, beginning at the dot labeled A. Each minute he moves to one of the dots neighboring the dot he was at, choosing from among its neighbors at random. What is the probability that after 5 minutes he is at the dot
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alskdj
Feb 14, 2019
0
52
2
help me
Find the integer n such that
â
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Guest
Feb 14, 2019
0
57
1
Plz help
Fake gold bricks are made by covering concrete cubes with gold paint, so the cost of the paint is proportional to their surface area while the cost of the concrete is proportional to their volume. If a 1 inch cube costs $1.30 to make while a 2 inch cube
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Guest
Feb 14, 2019
-1
127
6
+647
Geometry
As shown in the diagram, , and . Find
Another one...
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CoolStuffYT
Feb 14, 2019
0
93
4
CONFUSED
8000 divided by 3?
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Guest
Feb 14, 2019
0
63
0
help
Given that the polynomial x^2-kx+16 has only positive integer roots, find the average of all distinct possibilities for k.
Guest
Feb 14, 2019
-1
86
3
x2-5x-14= what?
what is a postive solution to
x2-5x-14= what?
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Guest
Feb 14, 2019
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