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Post New Question
All Questions
+0
230590 Questions
0
280
1
The Binary System
Only 1 0 people understand the binary system.
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Guest
Jun 12, 2021
0
363
1
Probability
A point P is chosen at random within right triangle ABC. Find the probability that the area of triangle PBC is less than half of the area of triangle ABC.
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Guest
Jun 12, 2021
0
356
1
Probability
There are three independent events with probabilities of 1/3, 2/7, and 1/5. Find the probability that: Exactly one event will happen.
Melody
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Guest
Jun 12, 2021
0
404
1
A ball is thrown straight up with an initial velocity of 17. 2 m/s (assume air resistance is negligible and take the point of release to be
A ball is thrown straight up with an initial velocity of 17. 2 m/s (assume air resistance is negligible and take the point of release to be y0=0). Calculate the displacement of the ball (in m) after 0.5 s.
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Guest
Jun 12, 2021
0
343
1
Probability
Two numbers between 0 and 1 on a number line are chosen at random. What is the probability that the second number chosen will: exceed twice the first number chosen? Express your answer as a common fraction.
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Guest
Jun 12, 2021
0
932
1
The domain of the function $r(x) = \frac{x^2}{1-x}$ is $(-\infty,1)\cup(1,\infty)$. What is the range?
thanks :)
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Guest
Jun 12, 2021
0
372
1
Help function
Consider the function
f(x)= ax^2 + a if x > a
f(x)= ax + 4a if x <= a
where a is some number.
What is the largest value of a such that the graph of y= f(x) intersects every horizontal line at least once?
read more ..
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Guest
Jun 12, 2021
0
283
1
Coordinates
Let a and b be real numbers, where a < b, and let A = (a,a^2) and B = (b,b^2). The line AB (meaning the unqiue line that contains the point A and the point B) has x-intercept (-3/2,0) and y-intercept (0,1). Find a and b. Express your answer
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Guest
Jun 12, 2021
0
349
1
Coordinates
Find all points that are 13 units away from the point (-2,7) and that lie on the line x - 2y = 10. Give your answer as a list of points separated by semicolons, with the points ordered such that their x-coordinates are in increasing order. (So "(1,-3);
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Guest
Jun 12, 2021
0
481
4
+201
Two points on the rim of a circle are randomly chosen. What is the probability that the distance between the points is shorter than the side
Two points on the rim of a circle are randomly chosen. What is the probability that the distance between the points is shorter than the side length of an equilateral triangle inscribed in the circle?
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mathisopandcool
Jun 12, 2021
0
351
1
Digits
A three-digit even number is given such that the hundreds, tens, and unit digits respectively form a decreasing arithmetic sequence. When two is added to the number, the same order of the digits now forms a geometric sequence. What is the original
read more ..
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Guest
Jun 12, 2021
Jun 11, 2021
0
866
4
Off topic
Name all the members here that are in the Top Users
off-topic
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Guest
Jun 11, 2021
0
357
1
Algebra
When the expression
1-1x+2x^2-2-3x+3x^2-4+4x-5x^2-6x+7-8x^2
written in the form ax^2 + bx + c, where a, b, and c are non-zero integers, what is the value of a + b + c?
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Guest
Jun 11, 2021
0
362
1
Coordinates
Given points P(-3,4) and Q(4,y) in a coordinate plane, for what value y of is the slope of the line through P and Q equal to 1/7?
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Guest
Jun 11, 2021
0
379
2
HELP ME EP!!!
Find the interval of all $x$ such that $1-3x < x \le 1-x$. Give your answer in interval notation, simplifying any fractions which appear in your answer.
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Guest
Jun 11, 2021
+1
414
2
fractions
One-third of Lemmie's toys exceeds one-fourth of the same toys by 18. What is half of the Lemmie's toys?
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Guest
Jun 11, 2021
0
339
1
Help algebra
Find 2^x if
2^x + 3^y = 13
2^(x + 2) + 3^(y + 1) = 43
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Guest
Jun 11, 2021
0
428
4
Percentage
There are 5% fewer girls than boys in a badminton club. Given that there are 4 more boys than girls, find the total number of members in the club.
Hint: Let the total number of boys be 100%
read more ..
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Guest
Jun 11, 2021
0
330
1
Sequence
Each successive term in the sequence 2048, 128, x, y, ... is obtained by multiplying the previous term by a constant. What is the value of x+y?
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Guest
Jun 11, 2021
0
352
2
+106
Help!
The graph of y=ax^2+bx+c is shown below. How do we find a(b)c?
each line segment is measured as 1 unit
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QuestionableBean
Jun 11, 2021
0
379
1
Complex Number
There exists a complex number of the form z = x + yi, where x and y are positive integers, such that
z^3 + 14 = -74 + ci,
for some integer c. Find z.
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Guest
Jun 11, 2021
0
338
1
Domain
What is the domain of the function $w(x) = \sqrt{x - 2} + \sqrt[3]{x - 2}$? Express your answer in interval notation.
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Guest
Jun 11, 2021
0
384
3
PLS HELP
8. Our club has 10 members, and we need to appoint a president, a vice-president, and a secretary. How many ways can we do this if:
(a) Each member can hold at most one office?
read more ..
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Guest
Jun 11, 2021
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