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Post New Question
All Questions
+0
230453 Questions
+1
475
1
+479
Help please
https://web2.0calc.com/questions/heeeeelp-please
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HelpBot
Sep 6, 2020
-1
457
1
+219
Help please :)
I know this was already asked here: https://web2.0calc.com/questions/a-circle-passes-through-the-points-2-0-2-0-and-3 but I could not figure out the rest of the problem. This is what I had done:
(h-(-2))^2 + (k-0)^2 = r^2
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Noori
Sep 6, 2020
0
394
1
help please
On two investments totaling $12,000, Michelle lost 5% on one and earned 7% on the other. If her net annual receipts were $264, how much was each investment?
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Guest
Sep 6, 2020
0
587
3
+421
Help with Proof
I just noticed that the intersection points of any regular polygon, when connected with lines, form a smaller regular polygon of the same side count. How to Prove this???
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Pangolin14
Sep 6, 2020
0
307
1
quadratic problem
Let r and s be the roots of x^2 - 2x + 7 = 0. Find the quadratic whose roots are r^2 and s^2.
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Guest
Sep 6, 2020
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459
2
probability question
In a group of 10 people, what is the probabiity that no two of them have the same birthday?
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Guest
Sep 6, 2020
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679
1
What is an equation of the line that passes through the points (-6, -5) and (-3,0)? Put your answer in fully reduced form.
What is an equation of the line that passes through the points (-6, -5) and (-3,0)? Put your answer in fully reduced form.
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Guest
Sep 6, 2020
0
516
1
number problem
In a 3-digit number, the hundreds digit is four more than the units digit, and the tens digit is three less than the sum of the other two digits. If the sum of all three digits in the number is 17, find the three digits.
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Guest
Sep 6, 2020
0
473
1
please help!
How many liters each of a 35% acid solution and a 85% acid solution must be used to produce 90 liters of a 60% acid solution? (Round to two decimal places if necessary.)
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Guest
Sep 6, 2020
+4
590
1
+136
Help ASAP
(a) There are 15 skaters in the Olympic women's competition, including 4 Americans. The gold medal goes to first place, silver to second, and bronze to third. In how many ways can the medals be awarded to three of the 15 skaters?
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EinsteinBrain29
Sep 6, 2020
0
577
1
+22
One more Algebra Question - Please Help!
The difference of the roots of the quadratic equation is . If , then find in terms of .
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CapriSun
Sep 6, 2020
0
439
2
+22
Algebra - Please Help!!!
I pick two whole numbers x and y between 1 and 10 inclusive (not necessarily distinct). My friend picks two numbers x-4 and 2y-1. If the product of my friend's numbers is one greater than the product of my numbers, then what is the product of my numbers?
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CapriSun
Sep 6, 2020
0
493
1
what is 25^1/2 / 2^-2
what is 25^1/2 / 2^-2
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Guest
Sep 6, 2020
+1
1208
8
+479
Heeeeelp please
How many ways are there to divide 12 people into a group of 3, a group of 4, and a group of 5, if Henry has to be in the group of 4?
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HelpBot
Sep 6, 2020
0
647
3
geometry question
Find y. Simplify completely.
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Guest
Sep 6, 2020
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499
1
equation of line
Find the equation of the line passing through (3,-2) and (5,8).
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Guest
Sep 6, 2020
0
761
7
+30
Don't quite understand this question. Please help ASAP.
For the graphs of and intersect at and and have -intercepts at and respectively. Compute the value of for which is a square.
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hulu0104
Sep 6, 2020
0
691
1
probability
There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 3/10. There are 12 red marbles in the bag and each is equally likely to be chosen. Work out how many marbles in total there must be.
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Guest
Sep 6, 2020
-1
588
3
+7
i need help!!
Eric draws a pryimid and adds the number of vertices and faces. his result is 12. Eric draws a ? prymid?
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THElovelyGIRL
Sep 6, 2020
0
381
1
please help
I need help simplifying this.
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Guest
Sep 6, 2020
+1
652
5
+230
URGENT HELP NEEDED
In right triangle ABC with angle A=90 degress, we have AB=16 and BC=24. Find sin A .
I failed on solving this question.
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Ericthegg123
Sep 6, 2020
-1
547
1
+1242
Magnitude of Complex Numbers
A function f is defined by f(z) = (4 + i)*z^2 + \alpha z + \gamma for all complex numbers z, where \alpha and \gamma are complex numbers and i^2 = - 1. Suppose that f(1) and f(i) are both real. What is the smallest possible
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Lightning
Sep 6, 2020
-1
456
1
geometry problem
Please help with the problem below.
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Guest
Sep 6, 2020
+1
858
1
+21
Help please, thank you!
Consider a six by six grid of unit squares. How many rectangles of area 8 square units can be formed using only the line segments of the grid as the sides of the rectangles? It may be helpful to draw the grid.
Thank you
read more ..
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nimimimi
Sep 6, 2020
-1
460
1
+7
HELP!
Anna draws a prism and subtracts the number of vertices from the number of edges. Her result is 7. Anna draws a ? prism?
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THElovelyGIRL
Sep 6, 2020
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