6,964 Answered Questions for the topic mathematics

Mathematics Algebra Maths

04/07/21

Find the volume of a mathematically similar glass when given the height and volume.
There are two mathematically similar glasses. One has a height of 16cm and a volume of 375cm3. The other has a height of y cm and a volume of 192cm3. Find the height, y.I thought here because they... more
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Mathematics

04/06/21

The cost of 4 tables and 15 chairs = $904.60, 2 tables and 4 chairs = $549.90, How much is 1 chair and 1 table?
Trying to help a friends child with his math and this one stumps me. I'd love to know how to reach the results so I can help with other problems.
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Mathematics

04/06/21

Statistics help needed
A bag of marbles had 25 black marbles and the rest were yellow. For a game, 32 marbles were chosen from the bag. Of these 32 marbles chosen, 5/8 were black.If not enough information is given to... more
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Mathematics Math Algebra 1 Algebra 2

04/06/21

CONTINUOUS RANDOM VARIABLE PLEASE HELP
A continuous random variable is normally distributed. The probability that a value in the distribution is greater than 56 is 0.6387. Find that probability that a value in the distribution is less... more
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Mathematics

04/05/21

math geometry, math class
In ΔNOP, the measure of ∠P=90°, NO = 83 feet, and OP = 49 feet. Find the measure of ∠O to the nearest tenth of a degree.
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Mathematics

04/05/21

mathmatics22333
a bus travels 320 miles in 6.4 hours.is the bus continues at the same rate which proportion can be used to find m,the number of miles the bus will travel in 9 hours
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Mathematics Calculus Discrete Math

04/04/21

Given f(x) = 3x - 2 for all x in R Prove that f is one-to-one.

Given f(x) = 3x - 2 for all x RProve that f is one-to-one.  
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Mathematics Chemistry Physics

04/04/21

Request To Find Fraction of Mass of Atmosphere Below Mount Everest
If I am standing at the top of Mount Everest with a height 8848 meter so what fraction of mass of atmosphere is below me assuming that isothermal atmospheric temperature is 260K?Best... more
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Mathematics Calculus Algebra

04/04/21

Explain why x^2 + a^2 times square root of x^2 + a^2 = (x^2+a^2)^3/2

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Mathematics

04/03/21

Who’s that are evenly divisible by both six and 14 are also divisible by which of the following numbers
A.8 B.12C.21D.28
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Mathematics Math Linear Algebra

04/03/21

Determining possible values of determinant A
Let A be a 3 x 3 matrix and let 1/8A^3 - 1/2A = 0. What are all possible values of detA?A) -8, 2, 0B) -8, 8, 0C) -4, 2D) 4, 2E) 2, 0
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Mathematics Math Proofs

04/03/21

Let x,y∈Z. Prove that if x and y have the same parity, then x^2+xy is even
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Mathematics Math Sat Math Act Math

04/03/21

Mathematics: proof with sets
A) Prove that given sets S and T, we have S⊆T if and only if S=S∩TB) If S∩T=T∪S, then S=TC) If SxT=TxS and both T and S are nonempty, then S=T
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Mathematics Math Highschool

04/02/21

2 bears and honey
it takes a bear nine more days to eat a barrel of honey alone then it takes the bear and the second bear to eat the barrel of huney together it takes the first bear seven fewer days to eat a barrel... more
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Mathematics

04/02/21

Find a missing coordinate using slope

(9,-9) and (-2,w) has a slope of -1 . What is the value of w
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Mathematics Math Elementary Math

04/02/21

HELP ME PLS! I REALLY NEED HELP!
For each equation write a story problem represented by the equation 1.5x = 6 and 3/4 + x = 2. I don't need to find the value of the variable, I just need help with the word problem. Only the word... more
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Mathematics Perimeter Area Volume

04/01/21

Find the area of rectangle HIJK with vertices H(4,-3), I(-3,-3), J(-3,-6), and K(4,-6).
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Mathematics Math Biology Statistics

04/01/21

how do i convert 65±5 (Mean±SEM) mmol/g to nmol/g?
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Mathematics

04/01/21

Please help! I need this answer, I don’t know how to do my daughters work and neither does she..
Machine A makes 12.75 ounces of popcorn in 3 minutes. Machine B makes 18 ounces of popcorn in 4 minutes. If each machine makes popcorn for 10 minutes, will there be enough popcorn for eight 9-ounce... more
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Mathematics Math

04/01/21

Octagon calculation
If each side of an octagon is 13.5 feet, what is the measurement across from flat side to flat side?
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Mathematics Algebra Ii

04/01/21

In which quadrant does θ lie if the following statements are true: sinθ<0 and cosθ<0
What quadrant does this lie in?
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Mathematics

04/01/21

What's the correct change?
Ok my mom has a20$ and she's wanting change for it so I said mom I have 2 5$ and she hands me the 20$ is that the correct math for that or do I owe her 10$ still?
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Mathematics Math Discrete Math

04/01/21

How many 8-bit strings have weight equal to 4?
The weight of a bit string is the number of 1’s that it contains. How many 8-bit strings have weight equal to 4?
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Mathematics Math Algebra 1 Algebra 2

04/01/21

A baseball is hit into the air a table shows how its height change over time.The relationship between x time in seconds and y the baseball height can be described by y=−16x2+bx. when it hits ground?
a baseball is hit into the air. The height shows how its height changes over timehttps://docs.google.com/document/d/1-zDRfiOH_K3_0Z4xV6zfGVW5AYpgDzmPLV2HAwWCyr0/edit?usp=sharingthe relationship... more
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Mathematics Math Algebra 1 Algebra 2

04/01/21

The linear factors of a quadratic expression are (x – a) and (x – b), where a and b are constants, and a > b > 0. Which of the following is true about the zeros of the related quadratic function?
The linear factors of a quadratic expression are (x – a) and (x – b), where a and b are constants, and a > b > 0. Which of the following is true about the zeros of the related quadratic... more
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