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All Questions
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234777 Questions
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757
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help
A square pyramid has base edge length 18 cm. The slant height of the pyramid is 41 cm. What is the volume of the pyramid?
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Guest
Feb 9, 2020
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591
1
Help PLZ
A quadratic of the form $-2x^2 + bx + c$ has roots of $x = 3 + \sqrt{5}$ and $x = 3 - \sqrt{5}.$ The graph of $y = -2x^2 + bx + c$ is a parabola. Find the vertex of this parabola.
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Guest
Feb 9, 2020
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962
4
Counting/ Probability
1. A number is called swappy if it is not a palindrome, but swapping two of its digits produces a six-digit palindrome. For example, the number 813381 is swappy, because we can swap the last two digits to get 813318, which is a palindrome.
How many
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Guest
Feb 9, 2020
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1133
1
help
I am choosing shapes out of a bag. The ratio of blue shapes to red shapes are 2:1. For the blue shapes, the ratio of spheres to cubes is 2:3. For the red shapes, the ratio of the spheres to cubes is 1:4. Given that there are 12 red spheres, how many blue
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Guest
Feb 9, 2020
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609
1
help
The length of the longer leg of a right triangle is 19 ft more than five times the length of the shorter leg. The length of the hypotenuse is 20 ft more than five times the length of the shorter leg. Find the side lengths of the triangle.
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Guest
Feb 9, 2020
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540
1
please help
A recently retired couple has $150,000 to invest to supplement their Social Security. They invested some of it in an account that paid 10% simple interest per year, and they invested the rest in an account that paid 5% simple interest per year. After one
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Guest
Feb 9, 2020
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3630
6
Please help!
Find the number of ways of distributing 4 different balls among 4 identical boxes.
I'm really stuck on this one.
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Guest
Feb 9, 2020
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390
1
help
The balance owed on your credit card is $3,000. The card has APR of 19%, compounded continuously. How many years will it take for the amount to be tripled
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Guest
Feb 9, 2020
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989
2
need help please
A 1.5-meter snake lives in the ceiling of a college’s Chemistry Building. One day, she decides to go outside, and slithers through a pipe at the speed of 15 centimeters per second. In 90 seconds, she slithers all the way through the pipe and her whole body
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Guest
Feb 9, 2020
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777
3
Hello,
Hello,
I have problem with this equal, can you please explain me how on it?
x^logx - 100x = 0
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Guest
Feb 9, 2020
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783
1
The ratio of chocolate mints to green mints in a bag is 3:5. After John ate half of the green mints and only one chocolate mint, the ratio o
The ratio of chocolate mints to green mints in a bag is 3:5. After John ate half of the green mints and only one chocolate mint, the ratio of chocolate mint to green mint was 7:6. How many mints are left in the bag?
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Guest
Feb 9, 2020
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918
1
help
How much cashews at $1.58 per pound must be mixed with walnuts that cost 78 cents per pound to make a mixture of 40 pounds of nuts that cost $1.50 per pound?
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Guest
Feb 9, 2020
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501
1
please help!
Greg's grocery store placed an order for yogurt. The store ordered 1,020 cartons of yogurt. Each carton ordered was blueberry, Peach, strawberry, or lemon. The store order twice as many cartons of blueberry yogurt as Peach. They ordered twice as many strawberry
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Guest
Feb 9, 2020
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714
1
Help with Counting!
At Mallard High School there are three intramural sports leagues: football, basketball, and baseball. There are 427 students participating in these sports: 128 play on football teams, 291 play on basketball teams, and 318 play on baseball teams. If exactly
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Guest
Feb 9, 2020
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837
4
What is the probability that a random permutation of the letters in MATHEMATICS contains the word TEA (with those three letters appearing co
What is the probability that a random permutation of the letters in MATHEMATICS contains the word TEA (with those three letters appearing consecutively)? Give your answer as a simplified fractio
hi, answer is not 1/4, how should
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Guest
Feb 9, 2020
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502
1
need help please
Julian had $40 more than Ricky originally. After Julian gave Ricky $60, Ricky had twice as much money as Julian. Find the total amount of money they have
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Guest
Feb 9, 2020
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592
1
help
Susy had 2/3 as much money as Mary at first. After receiving 1/2 of Mary's money, Susy had $210. How much money did Susy have at first
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Guest
Feb 9, 2020
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835
4
PLEASE PLEASE HELP!
All of the members of our spray-painting team paint at the same speed. If 20 team members can paint a 4800 square foot wall in 36 minutes, then how many minutes would it take for 9 team members to paint a 3600 square foot wall?
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Guest
Feb 9, 2020
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482
1
please help
Three years hence a father will four times as old as his son will be. Before two years he was seven times as old as his son was. Find their present ages.
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Guest
Feb 9, 2020
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1728
2
HALPS ASAP
In the SmallState Lottery, three white balls are drawn (at random) from ten balls numbered $1$ through $10$, and a blue SuperBall is drawn (at random) from ten balls numbered $11$ through $20$. When you buy a ticket, you select three numbers from $1$-$10$
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Guest
Feb 9, 2020
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605
2
CAN SOMEONE HELP???
In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R: I=V/R It's also true that resistance is directly proportional to the length of the wire. We have a piece of wire.
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Guest
Feb 9, 2020
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449
1
help
It takes Sarah 6 hrs longer to paint a room than it takes John. Working together, they can paint the room in 4 hours. How long in hours) would it take Sarah to paint the room alone?
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Guest
Feb 9, 2020
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376
1
PLS HALP!!!
In physics, Ohm's law says that current through a wire, I, is directly proportional to voltage, V, and inversely proportional to resistance, R: I=V/RIt's also true that resistance is directly proportional to the length of the wire. We have a piece of wire.
read more ..
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Guest
Feb 9, 2020
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