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Post New Question
All Questions
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230833 Questions
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175
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Geometric sequences
Find all r for which the infinite geometric series 2 + r + r/2 + r^2/4 + ... is defined. Enter all possible values of r, as an interval.
Guest
Nov 4, 2021
0
276
1
matematica
cuanto es la raiz cuadrada de 7894
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Guest
Nov 4, 2021
+3
228
1
Please help. Thanks.
Henry spent 1/6 of his money and an additional $10 on food. He then spent 1/2 of the remaining money and an additional $7 on books. Given that he was left with $13, how much money did Henry have at first?
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Guest
Nov 4, 2021
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169
0
Geometric series
An infinite geometric series has a first term of 12 and a second term of 4. A second infinite geometric series has the same first term of 16, a second term of 2+n, and a sum of four times that of the first series. Find the value of n.
read more ..
Guest
Nov 4, 2021
0
229
1
Geometric series
Evaluate the infinite geometric series: 3/2 + 2/3 + 8/27 + 32/243 + ...
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Guest
Nov 4, 2021
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230
2
Geometry
In the diagram below, we have line AB is parallel to line CD, EF = FG, < BEF = 130 degrees + x degrees, and < AEG = x degrees. Find the value of x.
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Guest
Nov 4, 2021
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166
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Polynomials
Let be a polynomial with integer coefficients. Suppose there are four distinct integers p, q, r, s such that
f(p) = f(q) = f(r) = f(s) = 18
If t is an integer and f(t) > 18, what is the smallest possible value of f(t)?
Guest
Nov 4, 2021
0
515
2
The sum of twice a number and 8 is between -2 and 12. find the number.
The sum of twice a number and 8 is between -2 and 12. find the number.
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Guest
Nov 4, 2021
0
407
1
+124
HAI HELP PLS
I'm doing a review class for algebra-- which means the teacher doesn't exactly teach you anything. I've looked on the internet for help but it doesn't really make sense? I kinda forgot how to find the x and y inyrtvrptd of an equation. Could someone walk
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heartSTORM907
Nov 4, 2021
+1
331
2
I am struggling with this question please help me with this question
Adam, Ben and Carlos shared some marbles. Adam received 1/5 of the
marbles. Ben received 18 more marbles than Adam. Carlos received 54
marbles. How many marbles did they have altogether?
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Guest
Nov 4, 2021
+1
336
2
I need help on maths
The ratio of the number of marbles received by John and Peter was 4:7 respectively.
The ratio of the number of marbles received by Peter and Sam was 9:5. John gave
1/12 of his marbles to Sam. Peter gave 1/9 of his marbles to Sam. Eventually,
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Guest
Nov 4, 2021
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156
0
geometry question
Let XY be a tangent to a circle, and let XBA be a secant of the circle, as shown below. If AX = 15 and $XY = 5$, then what is AB?
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Guest
Nov 4, 2021
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167
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Geometry
Let AB be a diameter of a circle, and let C be a point on the circle such that AB = 8 and $BC = 14$. The angle bisector of angle ACB intersects the circle at point M. Find CM.
Guest
Nov 4, 2021
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190
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Geometry
Triangle ABC has side lengths 29, 40, and 40. Find the inradius of triangle ABC. Find the circumradius of triangle ABC.
Guest
Nov 4, 2021
0
185
0
Calc help
Suppose two BOLOM transmitters are located at the coordinates (−200,0) and (200,0), where unit distance on the coordinate plane is measured in miles. A receiver is located somewhere in the first quadrant. The receiver computes that the difference in the
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Guest
Nov 4, 2021
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169
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Geometry
In regular octagon ABCDEFGH, M and N are midpoints of line BC and line FG respectively. Compute [ABMO]/[ABCDEFGH]. ([ABCD] denotes the area of polygon ABCD.)
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Guest
Nov 4, 2021
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231
1
Help
The ratio of the cost of a donut to the cost of a pizza is 2:9. Keith spent 1/3 of his money on 4 pizzas and 12 donuts. He bought some more donuts with 5/6 of the remaining money. How many donuts did Keith buy altogether?
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Guest
Nov 4, 2021
0
175
0
question for math
A deep-sea exploring ship is 250 feet below sea level. It rises at a rate of 5 meters per minute. How far below sea level is the ship after 2 minutes?
Guest
Nov 4, 2021
0
296
1
Help me to solve this problem
Tom and Peter have some money. The price of game cartridge is $45. If Tom buys this game cartridge, the ratio of his money left to that of Peter's will be 1:3. However, if Peter buys the game cartridge, the ratio of his money left to that of Tom's is 3:5.
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Guest
Nov 4, 2021
0
196
1
Quadratic
The quadratic ax^2 + bx + c can be expressed in the form 2(x - 8)^2 + 4. When the quadratic 3ax^2 + 3bx + 3c is expressed in the form n(x - h)^2 + k, what is h?
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Guest
Nov 4, 2021
0
158
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trig
In XYZ, and X = 90° , and cos Z = 7/ 29. Find sin Z and tan Y.
Guest
Nov 4, 2021
0
325
1
Solve the equation for x, and enter your answer in the box below.
Solve the equation for x, and enter your answer in the box below.
x + (-11) = 5
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Guest
Nov 4, 2021
0
460
2
Piecewise functions
Let
f(x) = ax + 3 if x > 2
f(x) = x + 5 if -2 <= x <= 2
read more ..
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Guest
Nov 4, 2021
0
167
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Algebra
What is the integer value of x in the arithmetic sequence 3^2, x, 3^4*3^2?
Guest
Nov 4, 2021
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