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Post New Question
All Questions
+0
234777 Questions
0
318
1
Help with function
If the function $j(x)$ is defined only on domain $[-1,2]$, and is defined on this domain by the formula $$j(x) = 2x^2+7,$$ then what is the range of $j(x)$? Express your answer as an interval or as a union of intervals.
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Guest
Aug 18, 2021
0
402
1
+56
Help
The ratio of the number of chocolate cakes to the total number of cakes sold in a shop was 3:8. of the remaining cakes in the shop were cheese cakes and the rest were lemon cakes and vanilla cakes in the ratio 2:1. There were
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IMTHEBEAST
Aug 18, 2021
0
375
2
+16
Confused.
Joe and Ivan are queuing up for a bus. 3/5 of the people are queuing in front of Ivan and 2/3 of the people are quaint behind Joe. There are 12 people between Joe and Ivan. How many people are there in the queue in total?
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Mulletmann
Aug 18, 2021
0
277
1
Complex Numbers
Simplify $\dfrac{5+12i}{2-8i}$. Your answer should be of the form $a+bi$, where $a$ and $b$ are both real numbers and written as improper fractions (if necessary).
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Guest
Aug 18, 2021
0
474
2
+56
Sorry but I need a bit more help
What is the number of square centimeters in the area of the triangle shown? (See if you can solve the problem without Heron's Formula!)
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LaTeX
Aug 18, 2021
0
275
1
function
What is the domain of the function $$f(x) = \frac{(2x-3)(2x+5)}{(3x-9)(3x+8)}~?$$ Express your answer as an interval or as a union of intervals.
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Guest
Aug 18, 2021
0
325
1
+56
halp
In the figure, what is the area of triangle $ABD$? Express your answer as a common fraction.
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LaTeX
Aug 18, 2021
0
217
0
Asymptote
Find the asymptote of -4x^2 + 16y^2 - 2y = 3 with positive slope.
Guest
Aug 18, 2021
0
323
0
+13
all y that doesn't satisfy an equation
Find all y which does not satisfy
$$1 \le 4-3y < 10$$
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imagodsobeit
Aug 18, 2021
0
335
2
Fractions
Peter scored 24 points in the basketball match. He scored 5/6 of all the points in the second half. How many points did he score in the first half?
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Guest
Aug 18, 2021
0
263
1
HELP!!!!!
In a rectangular coordinate system, the line 3y = x intersects the line 2x + 5y = 11 at point A. What is the sum of the coordinates of point A?
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Guest
Aug 18, 2021
0
378
4
help math
Bill is twice as old as his brother Dan. 12 years ago, Bill was eight times as old as Dan was. How old is Bill now?
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Guest
Aug 18, 2021
0
528
1
+56
I would like help please
Four circles of unit radius are drawn with centers $(1,0)$, $(-1,0)$, $(0,1)$, and $(0,-1)$. A circle with radius 2 is drawn with the origin as its center. What is the area of all points that are contained in an odd number of these 5 circles? (Express your
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LaTeX
Aug 18, 2021
0
207
0
function help
Evaluate g(x,y) = {mod((x), 2) > 0, -1}.
Guest
Aug 18, 2021
0
311
1
help algebra
Primo car rental agency charges 30 dollars per day plus 0.25 dollars per mile. Ultimo car rental agency charges 20 dollars per day plus 0.80 dollars per mile. Find the daily mileage for which the Ultimo charge is three times the Primo charge.
<
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Guest
Aug 18, 2021
0
259
1
help algebra
At a concession stand, five hot dog(s) and two hamburger(s) cost $\$10.25$; two hot dog(s) and five hamburger(s) cost $\$12.50$. Find the cost of one hot dog and the cost of one hamburger.
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Guest
Aug 18, 2021
0
373
2
+140
Complex Algebra Problem
Consider two infinite geometric series. The first has leading term , common ratio , and sum The second has a leading term common ratio and sum Find the value of
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sherwyo
Aug 18, 2021
0
326
1
+140
Number Theory Problem
The infinite sequence is defined by and for each integer . What is the remainder when is divided by ?
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sherwyo
Aug 18, 2021
0
313
2
i need help fast 5
help please
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Guest
Aug 18, 2021
0
337
2
help math
One number is four less than a second number. Four times the first is 14 more than 5 times the second. Find the numbers.
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Guest
Aug 18, 2021
0
218
0
sequence
If c(1) = 3/16 and c(n) = c(n - 1)*4, then what is the third term in the sequence?
Guest
Aug 18, 2021
0
262
1
help algebra
Simplify the following expression to a simplified fraction:
$$\sqrt{\dfrac{\sqrt{5}}{\sqrt{3125}}}.$$
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Guest
Aug 18, 2021
0
270
1
Help fast imaginary numbers
Help fast please
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Guest
Aug 18, 2021
0
261
1
Quadratic
Find the product of all positive integer values of c such that 8x^2 + 15x + c = 6x^2 - 4x + 1 has two real roots.
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Guest
Aug 18, 2021
0
276
1
help with function
The domain of the function h(x) = sqrt(25 - x^2) + sqrt(x) - 2 is an interval of what width?
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Guest
Aug 18, 2021
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