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Post New Question
All Questions
+0
230995 Questions
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1136
1
Help
A coin is tossed $9$ times, and at least $7$ of the tosses were heads. How many different sequences of tosses could there have been?
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Guest
Feb 23, 2020
0
633
1
+12
Number Theory
How can we prove that is always true?
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kellys4279
Feb 23, 2020
0
767
1
help
A town has a population of 19000 and grows at 4.5% every year. To the nearest tenth of a year, how long will it be until the population will reach 33700?
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Guest
Feb 23, 2020
0
657
0
Counting and Probability
1. Find the number of ways of distributing 20 chocolates, 20 gummy bears, and 20 lemon drops among two people, so that each person gets 30 candies. (The candies of each type are indistinguishable.)
2.At a local carnival, Mia
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Guest
Feb 23, 2020
0
426
1
Please help
A right rectangular prism has a base area one-quarter the base area of a larger right rectangular prism. The height of the smaller prism is half the height of the larger one.
What is the ratio of the volume of the smaller prism to the volume of
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Guest
Feb 23, 2020
0
1012
1
When x^4+6x^3-ax^2-45x-15 is divided by x^2-x-6 the remainder is 3. What is a?
When x^4+6x^3-ax^2-45x-15 is divided by x^2-x-6 the remainder is 3. What is a?
I'm really confused, and please show all the steps you took to solve this... I would really like to know for future similar problems!! :)
<
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off-topic
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Guest
Feb 23, 2020
0
710
1
please help
Anthony paid a 20% tip on a $15 dinner bill. Liam paid a 15% tip on his dinner bill, and left the same dollar amount as the tip Anthony left. How much did Liam's dinner cost, before the tip?
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Guest
Feb 23, 2020
0
392
1
Sequences and Patterns. Please help!
A sequence of numbers ... is defined by
...
(a) Use the pattern to write out an expression for , then compute its value.
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Guest
Feb 23, 2020
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333
0
𝐟𝐮𝐧𝐜𝐭𝐢𝐨𝐧 𝐡𝐞𝐥𝐩!
hi y'all! I also need help with this problem too.
https://web2.0calc.com/questions/function-help_6
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Guest
Feb 23, 2020
0
409
1
GEOMETRY HELP!!!
We are given an acute angle ABC with ray BD in its interior. Using only a “blank ruler” (a thin, unmarked rectangle), the goal is to construct points P on side BA and Q on side BC such that ray BD intersects P Q at a point R with PR = 2(QR).
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Guest
Feb 23, 2020
0
663
1
please help
Two cyclist start at the same point and travel opposite directions. One cyclist travels 8 mi/h slower than the other. If the two cyclist are 144 miles apart after 4 hours , what is the rate for each cyclist? Please answer ASAP
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Guest
Feb 23, 2020
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501
1
math
This pyramid is cut by the plane shown. The plane is parallel to the base of the square pyramid. What is the shape of the cross-section?
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Guest
Feb 23, 2020
0
811
2
help
If you run for 0.4 hours at 7 mph, how fast should you walk during the next 0.8 hours to have the average speed of 5 mph?
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Guest
Feb 23, 2020
0
525
1
help
About 7.5 gallons of water fill up 1 cubic foot of space. How many gallons of water will fill a pool with dimensions of 3ft by 1.5 foot by 3.5?
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Guest
Feb 23, 2020
0
374
1
counting problem
In how many ways can 8 people A, B, C, D, E, F, G and H be seated in a row if persons A and B must not sit next to each other?
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Guest
Feb 23, 2020
0
925
3
help
On a road the number of cars and the number of lorries are in the ratio 10 : 1 the number of lorries and the number of vans are in the ratio 7:10 There are 50 vans on the road. How many cars are there on the road?
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Guest
Feb 23, 2020
0
583
0
+12
Number Theory
For each part of this problem, convert the fraction to a "decimal" in the specified base.
(a) Convert the fraction to base
(b) Convert the fraction to base
(c) Convert the fraction to base
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kellys4279
Feb 23, 2020
0
677
1
help
A 4-ft vertical post casts a 12-in shadow at the same time a nearby cell phone tower casts a 118-ft shadow. How tall is the cell phone tower?
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Guest
Feb 23, 2020
+1
597
1
+5
please help me
"Chuck is a shiny new robot on it’s first day of work. Chuck’s job is to move packages and product around a warehouse that is used by Shopify merchants, keep things neat, tidy, and efficient. At 9:00am sharp Chuck gets its first set of instructions to fetch
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calcomg
Feb 23, 2020
+5
618
0
+1072
Help Please!!!
1. Find the number of ways to arrange the letters A, B, B, C, C, C. (Both B's are identical, and all three C's are identical.)
2. Robin chooses a 4-digit PIN number, so that there are exactly two different digits (like 0777).
read more ..
SpongeBobRules24
Feb 23, 2020
+5
536
0
+1072
Help Please!!!
Alice, Andrew, and six other students are to be divided into two teams of four people. How many ways are there to form the teams so that Alice and Andrew are on opposite teams?
SpongeBobRules24
Feb 23, 2020
0
490
1
help please quickly!
A culture of bacteria increases in a number at a compound rate of 0.08% per hour. If initially there was a culture of 5000 cells, how many cells will there be after 1 week
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Guest
Feb 23, 2020
0
478
1
help
The contents of the fuel tank of a car can be modeled by the function g(x)= -0.04x + 10, where x is in miles driven and g(x) represents the amount of fuel remaining in the tank in gallons. Kira traveled 150 miles. How many gallons does she have left in
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Guest
Feb 23, 2020
0
555
0
+4
Help me
in what bases, b, does (b+10) divide into (8b+10) without any remainder
elmo77777
Feb 23, 2020
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