2,578 Answered Questions for the topic Maths

Maths Mathematics

06/07/21

The length of the rectangle with dimensions 8 cm to 3 cm coincides with the large side of the triangle. If the perimeter of the rectangle and triangle are the same
The length of the rectangle with dimensions 8 cm to 3 cm coincides with the large side of the triangle. If the perimeter of the rectangle and triangle are the same, then how many integral triangles... more
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06/06/21

How do you calculate the confidence intervals for a population mean with only the sample mean and sample standard deviation?
I have a random sample and need to calculate the 95% confidence interval for the population mean(sample mean = 1076sample standard deviation = 80.61sample size is n=5)
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06/04/21

if you can can answer this asap that would be splendid!

A pizza shop owner is monitoring the amount of cheese he uses each week. The polynomialsbelow model the pounds of cheese ordered in the past, where p represents pounds.Mozzarella: 3p^3 − 6p^2 + 14p... more
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05/30/21

If a random variable X follows exponential distribution with parameter λ = 2 ,then its probability density function is given by
choose the correct answera. f (x)  2e2x , x  0 b. f (x)  12 e 12 x , x  0 c. f (x)  2e2x , x  0 d. f (x)  12 e 12 x , x  0
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05/30/21

If Sin A = Sin B, then is Sin(A/2) = Sin(B/2)?
Please Explain clearly with valid Proofs.if its true then, Will it be true for the other trigonometric functions?
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05/28/21

Disc maths question
What is the negation of ∀x∈R, ∃n∈Z, (xn⩾2)∨(n≠2)?
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05/28/21

Disc Maths question
Suppose you want to prove for all n⩾0 that the property P(n) given by n∑ j(j+1)/2 = n^3/6+n^2/2+n/3.j=0holds using induction on n. What should the induction step show (assuming that P(n) holds)?
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05/28/21

discrete maths question
Write ∑4i=0(4−i)X3i in standard form
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05/28/21

discrete maths question
Let f be the function {(1,4),(2,3),(3,1),(4,2)} and g be the function {(1,2),(2,3),(3,3),(4,3)}. For each of the functions h given below let c1=h(1), c2=h(2), c3=h(3) and c4=h(4). (So h is the... more
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05/28/21

Find the measure of angle a formed by the tangent lines. (see image)
https://i.imgur.com/b2BN2Pt.png(A) 75º(B) 150º(C) 105º(D) 115º(E) none of these
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05/27/21

find a (see image)
https://i.imgur.com/8YEze7P.png(A) 130(B) 160(C) 50(D) 80(E) none of these
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05/27/21

Simplify: √ab^4 √b^6
Choices:(A) √ab20(B) ab2 3√b(C) b2√a 3√b(D) b√a(E) none of these
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05/27/21

the subset of the real number consisting of all real numbers x that lie between a and b, excluding a and b, can be denoted by a<x<b or by the open interval? True or False?
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05/27/21

if the slope of a line is a horizontal line or straight left and right it is said to?
A. has aslope of oneB. not have a slope or undefinedC. has a slope of zeroD. has a slope of negative
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05/26/21

Ravi bought 3 pens and 4 notebooks for $28. Lola bought 4 pens and 8 notebooks at the same store for $52. How much does one notebook cost
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05/26/21

Quadratic function
Quadratic function f(x) = 1/3[(x+p)²+q] , y=4 , roots are 3 and 7.How to find the values of p and q?
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05/24/21

I dont understand! What is this question asking ?

Substitute 22 in for k. Is the number sentence true or false ? Subsitite 78 in for y. Is the number sentence true or false
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05/24/21

good explanation needed
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05/24/21

good explanation needed
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Maths Statistics

05/24/21

Hello I have a study with an odds ratio of 1.95 and confidence intervals of 1.47-2.59 what do these results mean for the accuracy and precision of the results thanks

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05/24/21

Age gap ratio math problem.
If a man is currently 3 times as old as his son, and eight years later he is 2.45 times as old as his son, what will be the ratio of their age after 8 more years (16 years to the current time).
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Maths Statistics

05/24/21

Is a confidence interval of 1.47-2.59 significant or accurate and is this considered narrow

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05/23/21

Linear/ or Quadratic models
Determine and explain which table of values represents a linear model, quadratic or neither. Use language such as differences and rate of change to provide a reasoning. t H ... more
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05/22/21

good explannayion needed for PART B

NEEDING HELP WITH PART B
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05/22/21

Can someone help me with figuring this problem out!
A Street has 13 houses in a row as shown in the figure. Some residents in the first house tested positive for COVID-19. The virus spreads in two ways: it can spread to the next house, or jump... more
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