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All Questions
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232936 Questions
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201
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Geometry
What is the radius of the circle inscribed in triangle ABC if AB = 15, AC = 41, and BC = 27?
Guest
Aug 30, 2021
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316
1
help
What is the greatest possible value of the expression in simplified form when an operation symbol ( ) is placed in each square? You may repeat or use different symbols for each square.
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Guest
Aug 30, 2021
-1
254
1
88 x 99=???
88 x 99=???
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Guest
Aug 30, 2021
0
255
1
help with interest
Lily is going to invest in an account paying an interest rate of 5.6% compounded continuously. How much would Lily need to invest, to the nearest cent, for the value of the account to reach $78,000 in 9 years?
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Guest
Aug 30, 2021
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200
0
Coordinates
Find the value of B - A if the graph of Ax + By = 3 passes through the point (-7,2), and is parallel to the graph of x + 8y = -5.
Guest
Aug 30, 2021
+1
363
1
+19
HELP PLS
Suppose is a polynomial such that and . What is the sum of the coefficients of ?
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uttoki
Aug 30, 2021
Aug 29, 2021
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330
1
ANYBODY PLEASE HELP
Find constants $A$ and $B$ such that \[\frac{x - 7}{x^2 - x - 2} = \frac{A}{x - 2} + \frac{B}{x + 1}\]for all $x$ such that $x\neq -1$ and $
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Guest
Aug 29, 2021
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358
1
Complex Numbers
If Q = 11 - 5i, E = 3 - 2i, and D = 2i, find QED.
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Guest
Aug 29, 2021
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325
1
Arithmetic Sequence
The first term of an arithmetic sequence is -8. Find the 20th term if the sum of the first 20 terms is 790.
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Guest
Aug 29, 2021
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333
2
Geometry
Let us have a triangle ABC and a point D on BC such that BD=DC=DA. If angle ACB=50 then how many degrees are in angle ABC?
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Guest
Aug 29, 2021
0
321
1
help geometry
In triangle ABC, CA=4sqrt(2), CB=4sqrt(7), and A=60 degrees. What is B in degrees?
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Guest
Aug 29, 2021
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242
2
PLEASE HELP CPHILL WYA!!!
Find constants $A$ and $B$ such that \[\frac{x - 7}{x^2 - x - 2} = \frac{A}{x - 2} + \frac{B}{x + 1}\]for all $x$ such that $x\neq -1$ and $x\neq 2$. Give your answer as the ordered pair $(A,B)$
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Guest
Aug 29, 2021
0
218
1
Constant term
Find the constant term in the expansion of ( x^2 + 1/x )^4 *(x - 1/x^3).
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Guest
Aug 29, 2021
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299
1
Quadratic
What real value of t produces the smallest value of the quadratic t^2 - 9t - 36 + t^2 + 7t - 16?
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Guest
Aug 29, 2021
0
336
2
Counting
A standard six-sided die is rolled 6 times. You are told that among the rolls, there was one 1, 2 two's, two three 's, and one four. How many possible sequences of rolls could there have been?
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Guest
Aug 29, 2021
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192
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System
Let (x_1, y_1), (x_2, y_2), ..., (x_n, y_n) be the real solutions to the system
x + 8y = 7
x^3 + 8y^3 = 343/81
Enter x_1 + y_1 + x_2 + y_2 + ... + x_n + y_n.
read more ..
Guest
Aug 29, 2021
0
180
0
Inequality
Find a linear inequality with the following solution set. Each grid line represents one unit.
Give your answer in the form ax + by + c > 0 or ax + by + c >= 0 where a, b and c are integers with no common factor greater than
read more ..
Guest
Aug 29, 2021
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188
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help algebra
A mathematician works for t hours per day and solves p problems per hour, where t and p are positive integers and 1 < p < 20. One day, the mathematician drinks some coffee and discovers that he can now solve 3p + 1 problems
read more ..
Guest
Aug 29, 2021
0
278
1
Sequence
The 3rd and 6th terms of a geometric progression are 8 and 64 respectively. Find the value of the 9th term
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Guest
Aug 29, 2021
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188
0
Coordinates
The perpendicular bisector of the line segment connecting the points (-3,8) and (-5,7) has an equation of the form y=mx+b. Find m+b.
Guest
Aug 29, 2021
0
265
2
Help with subtraction of intergers...7th grade
5 − ? = 49
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Guest
Aug 29, 2021
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228
1
help counting
How many different positive, six-digit integers can be formed using the digits 2, 2, 5, 5, 9 and 9?
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Guest
Aug 29, 2021
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279
1
help number theory
How many different primes appear in the prime factorization of $20!/18!$? (Reminder: The number n! is the product of the integers from 1 to n. For example 5! = 5*4*3*2*1 = 120)
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Guest
Aug 29, 2021
0
233
1
geometry
A kite flying the air has a 9-ft line attached to it. It's line is pulled taut and casts a 6-ft shadow. Find the height of the kite. If necessary , round your answer to the nearest tenth.
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Guest
Aug 29, 2021
0
243
1
Cylinder
The height of a right cylinder is 2.5 times its radius. If the surface area of the cylinder is 60 cm^2, what is the radius of the cylinder in centimeters?
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Guest
Aug 29, 2021
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