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MATH SOLVE
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A loan of $19,221 was repaid at the end of 17 months. What size repayment check (principal and interest) was written, if a 9.7% annual rate of interest was charged? The amount of the repayment check was $ 45447.53). (Round to two decimal places.)
General
4 months ago
Is 4320 perfect, abundant, or deficient? also perfect numbers? Explain why all positive multiples of 6 greater than 6 are aburndant numbers.
General
4 months ago
Mr. Samuelson's current rates of purchase are such that the marginal utility of slacks is 18 and the marginal utility of ties for him is 5. If slacks and ties are priced at $12 and $2 respectively, it can be concluded that Mr. Samuelson:a) is spending too much on slacks and not enough on ties.b) is spending too much on ties and not enough on slacks. c) is spending his income in such a way as to maximize his satisfaction. d) should buy six times as many ties as he does slacks.
General
4 months ago
Every evening, two weather stations issue weather forecast for the next day. The weather forecasts are independent. On average, the weather forecast of station 1 is correct 90% of the cases, irrespective of weather type. This percentage is 80% for station 2. Suppose that, without any forecast, the belief is that the next day rains or has sunny weather each with a 50% chance. On a given day, station 1 predicts sunny weather for the next day, whereas station 2 predicts rain. What is the probability that the weather forecast of station 1 will be correct?
General
4 months ago
Factor. m2 + 16m + 64
General
4 months ago
Find the volume. Help asap. Please.
General
4 months ago
How do you do (a) and (b)?Bernoulli’s equation is an equation of the form y ′ = a(t)y + f(t)y n , where n can't be 0 or 1.(a) Using the substitution z = y 1−n , show that we can transform Bernoulli’s equation into the linear equation z ′ = (1 − n)a(t)z + (1 − n)f(t).(b) Solve the equation xy′ + y = x^4 y^3
General
4 months ago
You are to give an injection of a drug. The dosage is 0.4 mg per kilogram of bod The concentration of the drug in vial is listed as 500 ug/ml. The patient's chart Hists weight as 168 pounds. How many milliliters (= cc) are you to inject? Patient's weight Concentration of drug Show calculations: mg/ml
General
4 months ago
90 points!!! Algebra - Please check these
General
4 months ago
Using the definition of Covariance, Cov(X,Y) = E[(x – My)(Y – My)], prove the followings. a. Cov(X,Y) = E(XY) - Mx Hy b. Cov(X,Y) = Cov(Y, X) C. Cov(X,X) = Var(X) d. Cov(X + Z,Y) = Cov(X,Y) + Cov(Z,Y) e. Cov(EX,Y)= XCov(X,Y) f. Var(X + Y) = Var(X) + Var(Y) + 2Cov(X,Y) g. Var(EX) = Var(X) + Ej Cov(X, X;)
General
4 months ago
Evaluate the function for the given value of x. f(x) = 7x4 - 10x2 + 14x - 26; x = -7
General
4 months ago
What is the relationship between the value of the digit 8 in the tens place and the value of the digit 8 in the ones place in the number 127,368,088?
General
4 months ago
The difference of two complementary angles is 55 degrees. Find the measures of the angles.
General
4 months ago
Assume a population of 1, 4, and 10. Assume that samples of size nequals2 are randomly selected with replacement from the population. Listed below are the nine different samples. Complete parts a through d below. 1,1 1,4 1,10 4,1 4,4 4,10 10,1 10,4 10,10
General
4 months ago
Which of the following equations defines a line that is parallel to the line y=-4/3x-4 and passes through the point (3,-1)
General
4 months ago
an ice cream factory makes 290 quarts of ice cream in 5 hours how many quarts could be made in 12 hours ? what was the rate oer day
General
4 months ago
A total of 32 students sign up for a kayaking trip. Four more seniors (s) sign up than juniors (j). Which system of linear equations models this situation? A) s + j = 32 4s + j = 36 B) s + j = 32 s − j = 4 C) s + j = 36 s − j = 32 D) s + j = 36 −s − j = 4
General
4 months ago
The perimeter of the this rectangle is 38 inches. The length is 14 inches.What is the width of the rectangle. Remember to add, subtract, and divideby 2.
General
4 months ago
A new phone-answering system installed by a certain utility company is capable of handling ten calls every 10 minutes. Prior to installing the new system, company analysts determined that the incoming calls to the system are Poisson distributed with a mean equal to five every 10 minutes. If the analysts are correct about this incoming call distribution, what is the probability that in a 10-minute period more calls will arrive than the system can handle? Based on this probability, comment on the adequacy of the new answering system. The probability that more calls will arrive than the system can handle is nothing.
General
4 months ago
Brad, a professor in the Walton College of Business, has taught Data Analysis for 3 years Historically, during that time, his average grade is 70% with a standard deviation of 5%. He is disappointed in the results of his students and decides to try different teaching methods to improve their grades. In the spring of 2016, he develops on-line videos as a supplement to his class lecture. During that semester, his average grade is 71% from a sample of 49 students. The level of significance is 2.5%. What hypotheses is Brad testing? 0 H0: μ .70 and HA: μ < .70 0 H0: μ s .71 and HA: μ > .71 0 H0: μ .70 and HA: μ > .70
General
4 months ago
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