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Post New Question
All Questions
+0
235535 Questions
0
237
1
digit problem
The sum of all the digits used to write the whole numbers 10 through 13 is 1+0+1+1+1+2+1+3 = 10. What is the sum of all the digits used to write the whole numbers 1 through 170, inclusive?
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Guest
Feb 2, 2022
0
287
1
help quadratic
There are two distinct solutions x to the equation 18 + 5x^2 = 80x. If each solution is rounded to the nearest integer, and then these two integers are multiplied together, what is the result?
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Guest
Feb 2, 2022
0
289
1
need help with quadratic
If we express 3x^2 + 2x - 4 in the form a(x - h)^2 + k , then what is k?
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Guest
Feb 2, 2022
0
304
1
Quadratic
What is the largest number c such that 2x^2 + 5x + c = -x^2 + 12x + 18 has at least one real solution? Express your answer as a common fraction.
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Guest
Feb 2, 2022
0
263
3
Number Theory
Find the smallest positive integer N with the following property: of the three numbers N, N + 1, and N + 2, one of them is divisible by 3^2, one of them is divisible by 5^2, one is divisible by 7^2, and one is divisible by 9^2, and one is divisible
read more ..
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Guest
Feb 2, 2022
-1
646
3
Question :)
As shown in the diagram, one end of a -foot-long electric cable is fixed at point A on the wall, and the other end of the cable (denoted by C) is a sensor. There is a pin attached to the cable at a point B that is 4 units away from C, and
read more ..
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Guest
Feb 2, 2022
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396
2
math
what is the square root of 4761?
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Guest
Feb 2, 2022
0
164
0
plz help
For every value of a, the graph of each of these three equations is a line:
ax + y = 1
x + ay = 1
x + y = 9
read more ..
Guest
Feb 2, 2022
0
373
1
algebra
what is x when -2/-9 = x/14
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Guest
Feb 2, 2022
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161
0
plz help
Find the sum of all possible positive integer values of b such that the quadratic equation 2x^2 + 15x + b = 0 has rational roots.
Guest
Feb 2, 2022
0
373
1
Kareem is saving money to buy a game. The game costs $21, and so far he has saved one-third of this cost. How much money has Kareem saved?
Kareem is saving money to buy a game. The game costs $21, and so far he has saved one-third of this cost. How much money has Kareem saved?
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Guest
Feb 2, 2022
0
263
1
Polynomials
Let f(x) be a polynomial such that f(0) = 4, f(1) = -5, and f(2) = 10. Find the remainder when f(x) is divided by x(x - 1)(x - 2).
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Guest
Feb 2, 2022
0
190
0
Problem on system
For a certain value of k, the system
x + y + 3z = 10
-4x - 3y + 5z = 7
kx + z = 3
read more ..
Guest
Feb 2, 2022
0
333
2
+22
Quotient and remainder
(6a^3+11a^2-4a-9)÷(3a-2)
Please help with quotient and remainder!!
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lastkings856
Feb 2, 2022
Feb 1, 2022
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299
1
Geometry
In triangle PQR, angle P = angle Q + angle R + 30 degrees. Of all three exterior angles of triangle PQR, what is the least exterior angle, in degrees?
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Guest
Feb 1, 2022
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187
0
Angles
Point D is on side AC of triangel ABC such that angle ADB = angle ABD and angle ABC - angle ACB = degrees. Find angle DBC in degrees.
Guest
Feb 1, 2022
0
297
1
Coordinate question
Let A = (6,2), and let B be the reflection of A over the line y = 2x + 5 . Find the coordinates of B.
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Guest
Feb 1, 2022
0
314
2
halp counting
How many different three-digit numbers can you make with the numbers 2022?
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Guest
Feb 1, 2022
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183
0
Geometry
Le A_1 A_3 A_3... A_10 be a regular polygon. A rotation centered at A_1 with an angle of a takes A_3 to A_9. Given that a < 180, find a in degrees.
Guest
Feb 1, 2022
0
301
1
Algebra
Find all values of c such that c/(c - 5) = 4/(c - 1). If you find more than one solution, then list the solutions you find separated by commas.
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Guest
Feb 1, 2022
0
249
1
Quadratic formula
If m is a real number and 2x^2+mx+18 has two distinct real roots, then what are the possible values of m? Express your answer in interval notation.
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Guest
Feb 1, 2022
0
189
0
Graphing question
If we graph the function f(x)=((x-2)^2-9)/3, the x and y intercepts of the graph are connected to make a polygon. What is the area?
Guest
Feb 1, 2022
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