Math Answers

Determine whether or not the following statements are proportions.if they are not explain why

A.there is an integer x such that X²=9

B.please solve the equation y=2x4

C.why do we have to study logic

D.5+5=15

E.it is not true that 1 is a prime number

Differentiate y= In ( 2cot²x )

Differentiate y= In ( 2cot²x )

The average length of time for students to register in the second semester at a certain university has been 70 minutes. A new registration procedure is being tested. If a random sample of 15 students have an average of 45 minutes with a standard deviation of 30 minutes under the new system, can you conclude that the new system is faster than the old one? Assume that the average length of time is normally distributed. Use α=0.05.

Find the measure of V of Rombus WXUV

U=80°

a machine starts production of matchboxes at the rate of 12000 per hour. The rate of production decreases by 40% every hour. Calculate the total nimber of matchboxes produced in first 2 hours

Is it an arithmetic progression or geometric progression??

solve (1+t²)y' +4ty=(1+t²)^-2; y(0)=1

Let P(x) denote the statement x > 3. What is the truth value of the quan-

tification ∃xP(x), where the domain consists of all real numbers?