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All Questions
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230864 Questions
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217
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Coordinates
Find a if the point (3,a) is on the line that passes through (-2,7) and (5,-8).
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Guest
Dec 7, 2021
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216
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help coordinates
.A line has the equation y=-2x/3 and passes through the point (2, -8) write the equation for the line in standard form.
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Guest
Dec 7, 2021
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535
1
Plz help
The terms of a particular sequence are determined according to the following rule: If the value of a given term $t$ is an odd positive integer, then the value of the following term is $3t -9$; if the value of a given term $t$ is an even positive integer,
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Guest
Dec 7, 2021
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317
1
+140
Tennis Ball Probability Question
I have 52 tubes of tennis balls with 13 different colors, with 4 tubes for each color. If the first 5 tubes that I chose at random, without replacement, what is the probability that 4 of those tubes were the same color?
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sherwyo
Dec 7, 2021
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716
3
Exponential Regressions
The accompanying table shows the number of bacteria present in a certain culture over a 6 hour period, where x is the time, in hours, and y is the number of bacteria. Write an exponential regression equation for this set of data, rounding all coefficients to
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Guest
Dec 7, 2021
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190
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Counting question
In the local ultimate league, teams have 7 members and each of the 4 teams takes turns hosting tournaments. At each tournament, each team selects two members of that team to be on the tournament committee. How many possible 8 member tournament committees
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Guest
Dec 7, 2021
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212
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help coordinates
Let line L_1 be the graph of 5x + 8y = -9. Line L_2 is perpendicular to line L_1 and passes through the point (10,-10). If line L_2 is the graph of the equation y=mx +b, then find m+b.
Guest
Dec 7, 2021
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250
2
off topic
How many of you guys are in school? Do you guys ever use this website as an actual source OUT of class?
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Guest
Dec 7, 2021
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222
1
Geometry
Two distinct points A and B are on a circle with center at O, and point P is outside the circle such that PA and PB are tangent to the circle. Find AB if PA = 15 and the radius of the circle is 9.
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Guest
Dec 7, 2021
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364
1
Một chuyến xe lửa có 3 toa xe, mỗi toa chở 14580kg hàng và có 6 toa xe khác, mỗi toa chở 13275kg hàng. Hỏi trung bình mỗi toa xe chở bao nhi
Một chuyến xe lửa có 3 toa xe, mỗi toa chở 14580kg hàng và có 6 toa xe khác, mỗi toa chở 13275kg hàng. Hỏi trung bình mỗi toa xe chở bao nhiêu ki-lô-gam hàng?
A train has 3 wagons, each carrying 14580kg of goods and 6 other cars,
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Guest
Dec 7, 2021
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872
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+204
A particular convex pentagon has two congruent, acute angles. The measure of each of the other interior angles is equal to the sum of the me
A particular convex pentagon has two congruent, acute angles. The measure of each of the other interior angles is equal to the sum of the measures of the two acute angles. What is the common measure of the large angles, in degrees?
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AlgebraGuru
Dec 7, 2021
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219
1
Geometry
In the diagram below, angle E = 50 degrees, and arc AB, arc BC, and arc CD all have equal length. Find the measure of angle ACD , in degrees.
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Guest
Dec 7, 2021
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185
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Number Theory
How many positive integers N from 1 to 5000 satisfy the congruence N = 11 (mod 131)?
Guest
Dec 7, 2021
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219
1
Geometry
An isosceles trapezoid is inscribed in a semicircle as shown below, such that the three shaded regions are congruent. The radius of the semicircle is one meter. How many meters are in the perimeter of the trapezoid? Express your answer as a decimal to the
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Guest
Dec 7, 2021
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255
2
Geometry
A circle with center A and radius three inches is tangent at to a circle with center B, as shown. If point B is on the small circle, what is the total perimeter of the shaded region? Express your answer in terms of pi.
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Guest
Dec 7, 2021
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212
2
Number Theory
How many positive integers N from 1 to 5000 satisfy both congruences N = 5 (mod 12) and N = 11 (mod 131)?
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Guest
Dec 7, 2021
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489
3
Pls help
The mean of $10, 4, 1, x,$ and $1$ is equal to the median. What is the smallest possible value of $x$?
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Guest
Dec 7, 2021
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218
1
help trig
In triangle ABC, cos B = 3/5 and angle A is 90 degrees. What is cos (C + A)?
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Guest
Dec 7, 2021
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160
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Base Numbers
If AAA_4 can be expressed as 33_b, where A is a digit in base 4 and b is a base greater than 5, what is the largest possible sum A+b?
Guest
Dec 7, 2021
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201
1
plz help
Lines l and k are parallel to each other. Angle A = 120 degres. What is the number of degrees in angle B?
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Guest
Dec 7, 2021
Dec 6, 2021
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253
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+10
ik its not math but...
I know it's not math, but, I'm working on Physical Science homework and I need to describe the similarities and differences between Sound Waves and Transverse waves:/
criveOnSpotify
Dec 6, 2021
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188
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Functions
Suppose a function f(x) is defined on the domain [-8,4] . If we define a new function g(x) by g(x) = f(2x + 1), then what is the domain of g(x)? Express your answer in interval notation.
Guest
Dec 6, 2021
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332
1
Help in the old link
https://web2.0calc.com/questions/please-help_83581
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Guest
Dec 6, 2021
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193
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Fibonacci sequence
The three Fibonacci numbers F_a < F_b < F_c form an arithmetic sequence. If a = 2000, find b and c.
Guest
Dec 6, 2021
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171
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Number Theory
Suppose that x is an integer that satisfies the following congruences
3 + x = 2^2 (mod 3^3)
5 + x = 3^2 (mod 5^3)
7 + x = 4^2 (mod 7^3)
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Guest
Dec 6, 2021
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