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All Questions
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157875 Questions
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34
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help
Horace turns up at school either late or on time. He is then either shouted at or not. The probability that he turns up late is 0.4. If he turns up late, the probability that he is shouted at is 0.7. If he turns up on time, the probability that
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Guest
Dec 6, 2019
0
57
2
Please help
It is possible to place positive integers into the vacant twenty-one squares of this 5*5 grid so that the numbers in each row and column form an arithmetic sequence. Find the number that must occupy the vacant square marked by the .
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Guest
Dec 6, 2019
0
74
5
Please help I am stuck on these questions.
1. We say that a quadrilateral is a bow-tie if two of the sides cross each other. An example is shown below.
Seven different points are chosen on
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Guest
Dec 6, 2019
0
44
1
help
The graph of x^2/a^2 + y^2/b^2 = 1 has its foci at (0, +/- 4), while the graph of x^2/a^2 - y^2/b^2 =1 has foci at (0, +/- 6). Compute the value |ab|.
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Guest
Dec 6, 2019
0
77
3
help
What is the remainder when 301^4 is divided by 10,000?
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Guest
Dec 6, 2019
0
71
1
help
Max picks two different cards without replacement from a standard 52-card deck. What is the probability that the cards are of different suits?
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Guest
Dec 6, 2019
0
51
1
urgent help
# of yeast cells double every 4 hours how many hours will it take to reach 6billion cells
a. 1.2(log2 0.25)
b. 0.25(log2 1.2)
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Guest
Dec 6, 2019
0
52
1
help
In triange ABC, D is on B so that AD:DB = 1:2, and G is on CD so that CG:GD = 3:2. If BG intersects AC at F, find BG:GF.
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Guest
Dec 6, 2019
0
63
1
help
A piece of paper in the shape of an equilateral ABC has AB = 8. When A is folded over to any point on BC, a crease of length x is formed which joins some point of AC to some point of AB. As A is moved along BC from B to C, x varies. If
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Guest
Dec 6, 2019
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41
0
help
Find all integral values of x for which (12(x^2 - 4x + 3))/(x^3 - 3x^2 - x + 3) has a positive integral vaue.
Guest
Dec 6, 2019
0
40
0
What is the point of maximum growth rate for the logistic function f(x) ? Round your answer to the nearest hundredth.
Please help ASAP am I correct or not
Guest
Dec 6, 2019
0
54
1
help
On hypotenuse AB of right triangle ABC, D is the point for which CB = BD. If angle B measures 40 degrees, find the measure of angle ACD.
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Guest
Dec 6, 2019
0
40
0
help
The sequence a_n is defined by a_1 = x, a_2 = x^{a_1}, and in general, a_n = x^{a_{n - 1}}.
Calculate a_{1,000,000} to the nearest thousandth when x = (4/3)^{3/4}.
Guest
Dec 6, 2019
0
41
0
help
The distances from a point on the circumcircle of an equilateral triangle to the two nearest vertices are 3 and 6. Find the distance from the point to the furthest vertex.
Guest
Dec 6, 2019
0
53
1
help
If x^2 + y^2 + z^2 = a^2 and x + y + z = x^3 + y^3 + z^3 = a, then write xyz expicitly in terms of a.
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Guest
Dec 6, 2019
0
42
1
help
The equation of line m is 3x + 4y = 12. The line whose equation is 3x + 4y = k is 2 units from m. Find the two possible values of k.
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Guest
Dec 6, 2019
0
48
1
What is the value of f(3) ?
I need help ASAP please
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Guest
Dec 6, 2019
0
48
2
help
If 2a + 3b = c, a + b + c = 42, and c - a = 19, then find (c + 1)/(ab).
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Guest
Dec 6, 2019
0
49
2
help
If ab = 15 and a^2 + b^2 = 40, then find (a + b)^4 - (a - b)^4.
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Guest
Dec 6, 2019
0
52
1
help
A certain number of birds are sitting on two trees A and B. The birds on tree A said to the birds on tree B that if one of you join us than we would be twice in number than you. The birds on tree B replied that instead
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ElectricPavlov
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Guest
Dec 6, 2019
0
82
1
+6
Plz help with this arithmetic series question
(b) Compute the sum
\ [ (a + ( 2n+1 ) d ) ^2- (a + (2n ) d ) ^2 + ( a + (2n-1 ) d ) ^2 - (a+ ( 2n-2 ) d ) ^2 + \cdots + (a+d ) ^2 - a^2.\]
Please
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LWind
Dec 6, 2019
0
72
2
probability question
A number between 8 and 15 is picked at random. what is the probability that the number picked is an even number
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Guest
Dec 6, 2019
+1
65
6
+14
i need help again... The Same Vertex to Factored
i have two more that i need to be in factored form
f(x) = -1/10(x-3)^2 +10
f(x) = -1/5(x-3)^2 + 7
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erydaybeats
Dec 6, 2019
0
44
1
How many positive four-digit integers are divisible by ?
How many positive four-digit integers are divisible by 8?
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Guest
Dec 6, 2019
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