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Post New Question
All Questions
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230788 Questions
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934
7
help
Suppose that you have an enormous grapefruit that is 92% water (by weight). The grapefruit weights 100 pounds. If the water content of the grapefruit evaporates until it is 90% water (by weight), then approximately how much does the grapefruit now weigh?
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Guest
Jan 20, 2020
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462
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help
A shipment of 9 microwave ovens contains 2 defective units. A restaurant buys four of these units. What is the probability of the restaurant buying at least three nondefective units?
Guest
Jan 20, 2020
+2
711
1
+96
more math help lmao
Solve for x, where x > 0 and 84x(x + 2) = 90-13x. Express your answer as a simplified common fraction.
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daddypig
Jan 20, 2020
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585
1
help
Seventy concert tickets are sold for 550$.Each adult ticket cost 9$ and each children’s ticket cost 5$.Find the number of adult tickets and the number of children’s tickets sold
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Guest
Jan 20, 2020
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490
1
help
In triangle ABC, the size of angle B is 3 times the size of angle A, and the size of angle C is 12degrees less than 6 times the size of angle A. What are the angles?
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Guest
Jan 20, 2020
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728
7
+296
Algebra 2 proof problem. A thorough explanation would be appreciated
Let be real numbers, and let , be the roots of the quadratic equation . Prove that if are real and nonzero, , and , then .
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EpicWater
Jan 20, 2020
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627
1
Physics
Kent Holditnomore excused himself from class, grabbed the cardboard pass of the lecture table and displaced himself 10 meters at 170 degress
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Guest
Jan 20, 2020
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569
1
find the degree
bob places an 18-fot ladder 6 feet from the base of his house and leans it up against the side of his house. find, to the nearest degree, the measure of the angle the bottom of the ladder makes with ground.
off-topic
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Guest
Jan 20, 2020
0
349
1
help
A box contains 39 total coins and bills worth $36.60 all coins are either five dollar bills or nickels how many of each type are there?
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Guest
Jan 20, 2020
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535
1
plz help
The roots of the quadratic equation $z^2 + az + b = 0$ are $2 - 3i$ and $2 + 3i$. What is $a+b$? Could you also explain how this is done? I'm kind of confused.
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Guest
Jan 20, 2020
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549
2
I need help
Yvette has six beads that she is going to assemble into a bracelet. Two of the six beads have the same color, and the remaining four all have different colors. How many different ways can Yvette assemble her bracelet? (Two bracelets are considered identical
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Guest
Jan 20, 2020
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712
2
math help
hi ok so ive been failing math, what should I do to help? nothing makes sense
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Guest
Jan 20, 2020
+1
792
1
+96
need math help like everyone else lmao
1)
If x+y= 7/12 and x-y=1/12, what is the value of x^2-y^2? Express your answer as a common fraction.
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daddypig
Jan 20, 2020
0
723
1
help
Suppose you have one quart of water/juice mix that is 50% juice, and you add 2 quarts of juice and 1 quart of water. What percent of the final mix is juice
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Guest
Jan 20, 2020
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504
1
confusion
There are six people sitting at a circular table. Each person is either tall or short. Let a be the number of people sitting next to at least one tall person, and let b be the number of people sitting next to at least one short person. How many possible
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Guest
Jan 20, 2020
0
345
1
help
Kim’s school is selling tickets for a play. On the first day of ticket sales the school sold 7 seniors citizen tickets and 14 student tickets for a total of $133. The school took in $89 on the second day by selling 8 senior citizen tickets and 7 student
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Guest
Jan 20, 2020
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1709
2
help please
A diagonal of a polyhedron is a line segment connecting two non-adjacent vertices. How many diagonals does a pentagonal prism have?
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Guest
Jan 20, 2020
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356
1
help
How many four-digit numbers are there formed from the digits 1, 2, 3, 4, 5 (with possible repetition) that are evenly divisible by 4?
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Guest
Jan 20, 2020
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615
3
+296
Algebra 2 graphing, explanation please
Find all numbers for which the graph of and the graph of intersect. Express your answer in interval notation.
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EpicWater
Jan 20, 2020
0
339
1
help
The first group of students consists of 10 and their average age was 13 years old the next group consisted of 30 students and their average was 9 years old find the average age of both groups?
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Guest
Jan 20, 2020
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1253
1
If the product 46400k is a perfect fourth power
If the product 46400k is a perfect fourth power, what is the smallest possible value of k?
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Guest
Jan 20, 2020
+10
844
7
+232
INSANELY HARD QUESTION
There are 18 chairs numbered from 1 through 18 around a circular table. How many ways can three people be seated, so that no two people are adjacent?
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ramenmaster28
Jan 20, 2020
0
1533
2
All the six-digit numbers
All the six-digit numbers that can be formed using the digits 0, 1, 6, 7, 8 and 9 are written. If each digit can be used only once, what is the largest of these numbers that is divisible by 11?
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Guest
Jan 20, 2020
0
787
2
graph the sine function
A sine function has the following key features: Period = π Amplitude = 2 Midline: y=−2 y-intercept: (0, -2) The function is a reflection of its parent function over the x-axis. Use the sine tool to graph the function. The first point must be on the midline
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Guest
Jan 20, 2020
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