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From the given polynomials, identify the polynomials of degree one.
a.11y^2 - 5 - 4yb.(3x^2)^1/2 + 12c.7 - (12)^1/2xd.2x + 13x^2e.5x + 7y + 8f.(12)^1x^1g.x^3 + 2x - 10h.3x + 4x - 4
Solve the following:i. 2x = -3x + 9ii. 3x/5 = -6iii. y/4 + 2 = 7iv. 16 = -2x/3v. Find f(1) for f(x) = 2x^3 - 3x^2 + x - 21vi. A function gives the value of C as 2 × (22/7) × r. Find C when r = 7 cm and r = 91 cm.
I know that I have to use the substitution methode and the elimination. I am not sure if I applied the correct system.
Time spent using e-mail per session is normally distributed, with μ = 8 minutes, and σ = 2 minutes. If you select a random sample of 25 sessions,
If customers arrive according to a non-stationary Poisson process with rate function λ(t) = sin(t) + 5, is the time between the arrivals an exponential distribution?
MoE's concessions manager believes the average amount that mall customers spend on food during a visit has increased over the historical average of $18.75, due to the opening of some new upscale restaurants in the mall. Use the data in the file to..
A microwave oven repairer says that the mean repair cost for damaged microwave oven is less than $90. You work for the repairer and want to test this claim.
A decision maker is working on a problem that requires her to study the uncertainty surrounding the payoff of an investment. There are three possible levels of payoff -$1,000, $5,000, and $10,000.
Delivery Format The General Social Survey asks, "About how often did you have sex in the past 12 months?" About 47% of respondents indicated they had sex at least once a week.
A traffic study at one point on an interstate highway shows that vehicle speeds are normally distributed with a mean of 61.3 mph and a standard deviation of 3.3 mph.
Twenty three percent of automobiles are not covered by insurance. On a particular weekend, 35 automobiles are involved in accident.
Suppose you were a consultant who has been engaged by an airline company to estimate the 'fudge' factor for passenger's weights. Describe an experiment you would consider to estimate this 'fudge' factor. Discuss the statistical test you would cons..
For value 10,40,20,50 and 40, value of arithmetic mean is? Simplest measure of dispersion is the Standard deviation, variance, Quartile deviation.
Explain these results to a person who understands the t test for a single sample but knows nothing about the t test for independent means.
An electrical firm manufactures electric light bulbs that have a length of life which is normally distributed with mean and standard deviation equal to 500 and 50 hours, respectively.
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