6,938 Answered Questions for the topic mathematics
Mathematics
06/09/21
probability question
you have a bag of 17 marbles. four are blue, 6 are green, 2 are red, and 5 are yellow. what is the probability of drawing a red marble, keeping it, then drawing a blue marble?
06/09/21
Please help, what are the z-scores of these
1.Find the z-score close to 11.15 percentile.2. Find the z-score close to 25.18 percentile.3. Find the percentile z-score close to 48.27 percentile.4. Find the z-score close to 62.31 percentile.5....
more
06/09/21
Hi! please help me solve my homework
The monthly income of the workers at the Microsoft plant are distributed normally. Suppose the mean monthly income is P30,000 and the standard deviation is P5,000. 20% of workers earn how much per...
more
Follows
•
1
Expert Answers
•1
![]()
A plane in still air.
You are flying a plane from Toronto to Ottawa (N65E). The wind is coming from N20W at 60 km/h. What should your speed relative to the still air and heading be if you are to make the 500km trip in...
more
Follows
•
1
Expert Answers
•1
![]()
06/08/21
Perpendicular Vectors
Determine a value of t so that vector u = [9,t] and vector v = [-16,t] are perpendicular.-Also, are projections of perpendicular vectors always 0? A friend stated that they were but that doesn't...
more
Follows
•
1
Expert Answers
•2
![]()
![]()
06/08/21
Speed and Distance relative to still air
You are flying a plane from Windsor to Gatio (N65E). The wind is coming from N20W at 60 km/h. What should your speed relative to the still air and heading be if you are to make the 500km trip in 1h...
more
Follows
•
1
Expert Answers
•1
![]()
Scalar Multiples
The angle between vector u and vector v is 60 degrees. If magnitude of vector u is 4 times the magnitude of vector v, find a scalar multiple, m, such that:vector u + m(vector)v is perpendicular to...
more
Follows
•
1
Expert Answers
•2
![]()
![]()
Calculate angle DEF
Triangle DEF has vertices D(-3,5), E(2,3) and F(6,7). Calculate angle DEF.
Statistics Question Help!
a) Create a scatter plot of time spentwatching television versus number ofbooks owned.The x value or independent value is the number of books owned, and the y value or dependent value is the hour...
more
Follows
•
1
Expert Answers
•1
![]()
Mathematics
06/08/21
Which pair of statements are logically equivalent? Select 2
Which pairs of statements are logically equivalent? Select two options.the inverse and the contrapositive of the original conditional statementthe original conditional statement and its...
more
Mathematics
06/08/21
if s varies directly as the square of t, and s=128 when t=4, find s when t is 9.
Linear Law - Non linear equation
How to express the non-linear equationx2y + m = nx² in the form of Y=mX+c , where m and n are constants?
Follows
•
1
Expert Answers
•1
![]()
06/08/21
Please help someone help me solve this
A Math test score is assumed tobe normally distributed with amean score of 50 and a standarddeviation of 10. If 45% of the students failed the test,what was the minimum passing score?
Follows
•
1
Expert Answers
•1
![]()
06/08/21
On a given interval, if the antiderivative of f exists, is it unique? Why or why not? (You may cite theorems to support your answer.)
The question basically asks for a specific given interval, if the antiderivative of f exists, is it unique?If yes, why?If no, why not?In stating the reasons you can use specific theorems that would...
more
Follows
•
1
Expert Answers
•1
![]()
06/08/21
Hi please help!
Sarah begins the year with $110 in her savings account. Each week, she spends $14. Martin begins the year with $8 dollars saved, but each week he puts $6 in an account. Let w represent the number...
more
Mathematics
06/08/21
Write an exponential function in the form y=ab^xy=ab x that goes through points (0,17) and (5,4131).
Mathematics
06/08/21
Suppose that x=ln(A) and y=ln(B). Write the following expressions in terms of x and y (so you cannot have an A or B anywhere in your answers)
Answer the following problem: ln(A^4 x sqrt(b))
What is the maximum height the rocket reaches?
A rocket takes off from a height of 30 feet with an initial velocity of 150 ft/sec. The equation that models the path that the rocket takes is: (G)x = -16t^2 + 150t + 30. What is the maximum height...
more
Follows
•
1
Expert Answers
•3
![]()
![]()
Mathematics
06/07/21
what if the sum of two was 17 and the difference was 1 what are the two numbers
Algebraic Proof Question
Using algebra,prove that, given any 3 consecutive even numbers, the difference between the square of the largest number and the square of the smallest number is always 8 times the middle number.
Follows
•
1
Expert Answers
•1
![]()
What will my final grade be?
So I took my first final and I only finished half. My final is worth 20% of my grade. My current grade is a 89%. Assuming I get a 50% on my final, how much will it affect my grade.
Mathematics
06/07/21
Solve by cross multiplication method. 7x-2y=3, 11x-3/2y=8
06/07/21
Refer to the description below. Are there any other anti-derivatives of f(x) = 12x^2 + 2x, and g(x) = cos x. (Cite another anti-derivative for each function.)
There are already two known antiderivatives of each function, specifically:1.) f(x) = 12x^2 + 2x:Antiderivatives:4x3+x24x3+x2-12.) g(x)=cos xAntiderivatives:sin xsin x+πNow, what are the other...
more
Follows
•
1
Expert Answers
•1
![]()
Applications of Integration
Find, by slicing, the volume of a cone whose height is 3 cm and whose base radius is 3 cm. volume =
Follows
•
1
Expert Answers
•1
![]()
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
