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All Questions
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157560 Questions
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2
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help
For what real values of $a$ is $x^2 + ax + 25$ the square of a binomial? If you find more than one, then list your values in increasing order, separated by commas.
Guest
13
mins ago
0
3
1
According to Pythagoras theorem, distance between points (-3, 8) and (8, -5) is
According to Pythagoras theorem, distance between points (-3, 8) and (8, -5) is
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Guest
1 hour ago
0
12
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
6 hours ago
0
9
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
6 hours ago
0
9
2
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
6 hours ago
0
10
5
+7
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
6 hours ago
0
11
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
7 hours ago
0
10
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
7 hours ago
0
10
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
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Guest
7 hours ago
0
9
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
8 hours ago
0
11
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
8 hours ago
0
11
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
9 hours ago
0
13
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
9 hours ago
0
11
2
help
How many distinct diagonals of a convex heptagon (7-sided polygon) can be drawn?
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Guest
10 hours ago
0
12
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
10 hours ago
0
12
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
11 hours ago
0
8
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
11 hours ago
0
16
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
Jan 20, 2020, 12:52 AM
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9
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
Jan 20, 2020, 12:41 AM
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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
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Nirvana
Jan 20, 2020, 12:29 AM
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
Jan 20, 2020, 12:14 AM
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
Jan 19, 2020, 11:46 PM
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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
Jan 19, 2020, 11:31 PM
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
Jan 19, 2020, 11:25 PM
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
24
7
+106943
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
read more ..
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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
0
8
1
Need help...
Ten points are chosen on a circle. A line segment is drawn between every pair of chosen points. How many line segments are drawn?
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Guest
Jan 19, 2020, 9:10:50 PM
0
10
1
Help...
Yvette has six beads that she is going to assemble into a bracelet. Two of the six beads have the same color, and the remaining four all have different colors. How many different ways can Yvette assemble her bracelet? (Two bracelets are considered identical
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Guest
Jan 19, 2020, 9:10:04 PM
0
12
1
I need help on these...
There are 18 chairs numbered from 1-18 through around a circular table. How many ways can three people be seated, so that no two people are adjacent?
Anty the ant starts at the point (0,0) in the coordinate plane. At each
read more ..
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Guest
Jan 19, 2020, 9:09:35 PM
0
7
1
help
Last month the balance on your credit card was $785. Your new balance is $540. what percent of your total balance did you pay
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Guest
Jan 19, 2020, 9:06:24 PM
0
12
1
+188
help :(
how many integers between 100 and 150 have three different digits in increasing order? (for example, 129, 158, etc.)
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atlas9
Jan 19, 2020, 8:37:05 PM
0
11
1
help
A building 30 feet tall casts a shadow 20 feet long. A person 6 feet tall is walking directly away from the building toward the edge of the building shadow. How far from the building will the person be when the person shadow just begins to emerge from that
read more ..
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Guest
Jan 19, 2020, 6:34:01 PM
0
10
1
help
On Decemeber 18th, there is a 75% chance that Santa will come to the mall that day and a 55% chance that your best friend will be at the mall. There is a 40% chance that your best friend will be there AND Santa will come to that mall. What is the probability
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Guest
Jan 19, 2020, 6:30:18 PM
0
7
1
Please help
If 6x^4+8x^3-5x^2+ax+b is completely divisible by 2x^2-5 then find the value of a and b.
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Guest
Jan 19, 2020, 6:25:44 PM
0
10
1
help
90 percent of the students at a school went on to go university and of these 30 percent stayed on to study a masters degree calculate the percentage of the students at the school who went to study a masters degree
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Guest
Jan 19, 2020, 6:19:13 PM
0
15
4
+46
PLEASE HELP!!!
Given: circle O,
line ST is tangent to the circle at point T. Congruent angles are marked.
Find x.
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xxJenny1213xx
Jan 19, 2020, 5:56:29 PM
0
10
1
help
There is a 85% chance that you will go to a Eagles concert given that the weather is good. If there is a 60% chance that the weather is good, what is the chance that you go to the concert and the weather is good?
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Guest
Jan 19, 2020, 5:36:43 PM
0
9
1
help
Assume the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons. Find the average rate of change from 1950 to 1995.
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Guest
Jan 19, 2020, 5:31:58 PM
0
10
2
+188
help with bases
convert 100_64 to a number base 62.
can i convert 100_64 to decimal first then to base 62?
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atlas9
Jan 19, 2020, 5:15:05 PM
0
13
0
Help please
Quadrilateral ABCD is convex. Let M be the midpoint of AD, and let N be the midpoint of BC. Prove that MN is greater than or equal to (AB+CD)/2.
If MN=(AB+CD)/2, then what can you say about quadrilateral ABCD.
Guest
Jan 19, 2020, 5:09:28 PM
0
10
1
help
Justin got pepperoni, banana peppers, and black olives on his pizza for a cost of $7.49. Jake ordered mushrooms and eggplant on his pizza and paid $6.99. Using this information, how much did each topping cost? And what does a plain pizza cost with no extra
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Guest
Jan 19, 2020, 5:06:57 PM
0
13
2
Help
Let m be a positive integer. In triangle ABC, AB=4,-9, AC=3m+1, BC=3m+4 and angle A > angle B > angle C. How many possible values of m are there?
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Guest
Jan 19, 2020, 5:01:28 PM
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15
1
+72
algebra b help
what is the least value of such that ?
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pinklemonade
Jan 19, 2020, 4:51:48 PM
0
13
1
help
The line graph shows the miles per gallon for a car.
What is the unit rate of gas usage for the car?
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Guest
Jan 19, 2020, 4:33:00 PM
0
11
1
+42
HELPW
$40$ is $120\%$ of what number?
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Paresh247
Jan 19, 2020, 3:55:51 PM
0
10
1
help
Henry gets pic 'n mix when at the cinema and makes his bag up with 3 types of sweet. He picks 3 times as many smarties as cola bottles. He also picks twice as many marshmallows as smarties. What proportion of the bag of sweets are marshmallows? Give your
read more ..
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Guest
Jan 19, 2020, 3:52:56 PM
0
14
1
HELP
Initially, $40\%$ of the students at the school dance are girls. Then, $15$ more girls arrive, after which $52\%$ of the students at the dance are girls. How many students are now at the dance after the additional girls arrive?
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Guest
Jan 19, 2020, 3:46:46 PM
0
13
1
Need Help
In the diagram below, we have and . Find the length .
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Guest
Jan 19, 2020, 3:40:59 PM
0
15
2
help
A rose garden is formed by joining a rectangle and a semicircle. The rectangle is 28 ft long and 22 ft wide. If the gardener wants to build a fence around the garden, how many feet of fence are required.
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Guest
Jan 19, 2020, 2:52:37 PM
0
26
2
what is bigger 4/5 or 6/7
what is bigger 4/5 or 6/7
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Guest
Jan 19, 2020
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