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All Questions
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157558 Questions
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11
1
help
Find all integers x for which there exists an integer y such that 1/x + 1/y = 1/7. In other words, find all ordered pairs of integers (x,y) that satisfy this equation, then enter just the x's from these pairs.
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Guest
4 hours ago
0
7
1
Help please
What is the value of cos 0 given that (-2,9) is a point on the terminal side of 0?
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Guest
5 hours ago
0
6
1
Trig questions
What is the value of sin 0 given that (-6,-8) is a point on the terminal side of 0?
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Guest
5 hours ago
0
9
4
+6
Trig question
The line with equation -a+3b=0 conincides with the terminal side of an angle 0 (with a line through it) in standard position and sin 0 (line through it) < 0
What would the value of cos 0 (with a line through it)?
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JohnLester1
5 hours ago
0
10
1
help please!
Find the polynomial p(x), with real coefficients, such that p(2) = 5 and p(x) p(y) = p(x) + p(y) + p(xy) - 2 or all real numbers x and y.
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Guest
5 hours ago
0
9
1
need help now
The shape ABC is an triangle, AB = 64 mi, BC = 32.6 mi. Angle ABC is 74 degrees. Using the cosine rule, calculate the distance of AC
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Guest
5 hours ago
0
9
1
help
Artie's dad's house is 21 ft tall. If Artie's dad is at the top of the house installing shingles, and his son Artie is on the ground 12 ft away from the base of his dad's house, what is the angle of depression from the top of the house to the spot where
read more ..
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Guest
6 hours ago
0
8
1
help
A committee consisting of 4 faculty members and 5 students is to be formed. Every committee position has the same duties and voting rights. There are 8 faculty members and 15 students eligible to serve on the committee. In how many ways can the committee
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Guest
6 hours ago
0
9
1
help
A tank can be filled by one pump in 3.2 hours and by another pump in 80 minutes. A third pump can drain the tank in 2 hours and 20 minutes. If all 3 pumps go into operation, how long will it take to fill the tank?
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Guest
7 hours ago
0
9
1
help
Yellow Cab Taxi charges a $1.75 flat rate for a ride in the cab. In addition to that, they charge $0.45 per mile. Katie has no more than $12 to spend on a ride. At most, how many miles can Katie travel without exceeding her spending limit?
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Guest
7 hours ago
0
12
1
please help
Find area of the isosceles triangle formed by the vertex and the x-intercepts of parabola y=x^2+4x−12.
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Guest
8 hours ago
0
10
2
help
How many distinct diagonals of a convex heptagon (7-sided polygon) can be drawn?
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Guest
8 hours ago
0
11
1
help
A quadratic equation is given below.
2x² - 8x + c = y
If the graph of this quadratic equation has a minimum value at (2, 10), what is the value of c?
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Guest
8 hours ago
0
11
1
please help!
Supposed you go to a conference attended by 20 canadians and 20 norwegians. How many people must you meet to be certain that you have met two people of the same nationality?
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Guest
9 hours ago
0
7
1
help
Larry rides his bike at a rate of 8.8 inches per second. About how m any miles per hour can Larry ride his bike?
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Guest
9 hours ago
0
15
3
+41
1988 USAMO Problem 5
Let $p(x)$ be the polynomial $(1-x)^a(1-x^2)^b(1-x^3)^c\cdots(1-x^{32})^k$, where $a, b, \cdots, k$ are integers. When expanded in powers of $x$, the coefficient of $x^1$ is $-2$ and the coefficients of $x^2$, $x^3$, ..., $x^{32}$ are all zero. Find $k$.
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USAMO2019
10 hours ago
0
8
1
need help on these
(b) A machine in a food canning factory produces 250 cans every hour. How many cans would be produced in 25 minutes?
(C) If 14 pens cost $5.60, find the cost of 3 pens.
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Guest
10 hours ago
0
15
1
+679
simple question i am overthinking once again
general question: how do i even write equivalent expressions to like a given expression?
the question for example asks for an equivalent expression if you are given 5^4x-3
(sorry i did not know how to write that in latex)
i have tried this question
read more ..
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Nirvana
10 hours ago
0
12
1
Please help! Thank you!
For what real values of $c$ is $x^2 + 16x + c$ the square of a binomial? If you find more than one, then list your values separated by commas.
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Guest
10 hours ago
Jan 19, 2020
0
11
1
help
During the budget crisis in California, RCC Business Department was forced to cut 48 sections of classes for the Fall 2011 term. This was a 40% cut. How many sections were offered by the Department before the 40% cut?
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Guest
11 hours ago
0
16
1
helppp
Below is a magic square, meaning that the sum of the numbers in each row, in each column, and in each of the 2 main diagonals are equal. What is the value of n?
https://docs.google.com/document/d/1WcE0KL96EoktrFj81tNFmbErzg-4e4xroA6KDkorbaQ/edit?usp=sharing
read more ..
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Guest
11 hours ago
0
8
1
help
The probability of a potential employee passing a training course is 86%. If you selected 15 potential employees and gave them the training course, what is the probability that 11 or less will pass the test?
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Guest
11 hours ago
0
9
1
i need help
A 13 foot long ramp rises 5 feet from the first floor to the second floor. What is the distance from the base of the ramp to the bottom of the first floor?
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Guest
Jan 19, 2020, 10:45 PM
0
7
1
help
A kite is flying above the ground at the end of a 100 feet of string. If the angle of elevation of the kite is 65°, how high above the ground is the kite flying?
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Guest
Jan 19, 2020, 10:33 PM
0
10
1
+4
A sine function has the following key features-
A sine function has the following key features:
Period = 4
Amplitude = 3
Midline: y= −1
read more ..
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PeerlessCucumber
Jan 19, 2020, 10:31 PM
0
8
1
help
Alex is 12 years older than George Carl is three times older than Alex The sum of their ages is 68 Find the ratio of George's age to Carl's age.
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Guest
Jan 19, 2020, 10:16 PM
0
8
1
help
Two mechanics worked on a car. The first mechanic worked for 10 hours, and the second mechanic worked for 5 hours. Together they charged a total of $1325. What was the rate charged per hour by each mechanic if the sum of the two rates was $170 per hour?
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Guest
Jan 19, 2020, 10:03 PM
0
23
7
+106939
I keep getting a 'geometrybits' popup sign in page.
I keep getting a 'geometrybits' popup sign in page.
I assume I am not the only one ?
off-topic
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Melody
Jan 19, 2020, 10:02 PM
0
13
1
At an ocean depth of 20 meters, a buoy bobs up and then down 2 meters from the ocean's depth.
At an ocean depth of 20 meters, a buoy bobs up and then down 2 meters from the ocean's depth. Four seconds pass from the time the buoy is at its highest point to when it is at its lowest point. Assume at x = 0, the buoy is at normal ocean
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Guest
Jan 19, 2020, 10:00 PM
0
11
1
A researcher observes and records the height of a weight moving up and down on the end of a spring.
A researcher observes and records the height of a weight moving up and down on the end of a spring. At the beginning of the observation the weight was at its highest point. From its resting position, it takes 12 seconds for the weight to reach
read more ..
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Guest
Jan 19, 2020, 9:57:04 PM
0
11
1
A sine function has the following key features:
A sine function has the following key features:
Period = π
Amplitude = 2
Midline: y=−2
read more ..
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Guest
Jan 19, 2020, 9:50:39 PM
0
11
1
help
A round swimming pool has a circumference of 66 feet. Carlos wants to buy a rope to put across the diameter of the pool. the rope costs $0.45 per foot, and Carlos needs 4 more than the diameter of the pool. How much will Carlos pay for the rope and what
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Guest
Jan 19, 2020, 9:33:36 PM
0
11
1
help please
In triangle ABC, angle A = 2 * angle B. Prove that the side lengths satisfy a^2 = b(b + c).
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Guest
Jan 19, 2020, 9:17:21 PM
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