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MATH SOLVE
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Variables A and B are normally distributed. Variable A has a mean of 50 and a standard deviation of 10. Variable B has a mean of 80 and a standard deviation of 20. If the probability that A is at or below the number x is 0.20, and the probability that B is at or above the number y is 0.40, what is the value of y – x ?
General
2 months ago
The terminal side of angle theta in standard position passes through the point (8/17, 15/17)on the unit circle.Find cos thetaSin thetaTan theta Sec thetaCot thetaCsc theta
General
2 months ago
a group of friends ate dinner at the fair last night. the function g(x) represents the amount of money spent in dollars where x is the number of friends. does a possible solution of (12.5, $139.50) make sense for this function?
General
2 months ago
Solve the following systems of equations.A) 6x+15y+12z=12B) 3x-9y-3z=15C) 3x+12y+3z=3Possible Answers:A. x=33/10 , y=1/5 , z=1/2B. x=67/10 , y=3/5 , z=1/10C. x=33/10 , y=-3/5, z=1/10D. x=-33/5 , y=-3/5 , z=1/5
General
2 months ago
Inside a toy truck, there is a gear that rotates to (3, −8) when the steering wheel is turned to the left. What is the sine value of this function? 3 square root of 73 over 73 negative 8 square root of 73 over 73 3 −8
General
2 months ago
If you want to produce an open-top box from a 16 in by 22 in flat piece of cardboard, what is the maximum possible volume (in in3) of the box? Round your answer to the nearest whole number and omit units.
General
2 months ago
Cards are drawn from a standard 52-card deck until the third club is drawn. After each card is drawn, it is put back in the deck and the cards are reshuffled so that each card drawn is independent of all others. (a) Find the probability that the 3rd club is drawn on the 8th selection. (b) Find the probability that at least 8 cards are drawn before the 3rd club appears. (c) Repeat parts (a) and (b) if the cards are drawn without replacement. That is, after each card is drawn, the card is set aside and not replaced in the deck.
General
2 months ago
Assume that when adults with smartphones are randomly selected, 57% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that at least 3 of them use their smartphones in meetings or classes The probability is ?
General
2 months ago
Can someone help answer this question Ive tried a lot and couldnt do it. Find the surface area of each figure. Round the answer to two decimal places. (use π = 3.14) Do not include units of measure in your answer.PIctrue down below
General
2 months ago
Two faulty machines, M1 and M2, are repeatedly run synchronously in parallel (i.e., both machines execute one run, then both execute a second run, and so on). On each run, M1 fails with probability p1 and M2 fails with probability p2, all failure events being independent. Let the random variables X1, X2 denote the number of runs until the first failure of M1, M2 respectively; thus X1, X2 have geometric distributions with parameters p1, p2 respectively. Let X denote the number of runs until the first failure of either machine. Compute the distribution of X. What is its expectation?
General
2 months ago
a car can travel 396 miles on 22 gallons of gasoline.how much gasoline will it need to go 468 miles?
General
2 months ago
Jenn claims that because log(1) + log(2) + log(3) = log(6), then log(2) + log(3) + log(4) = log(9).Is she correct? Explain how you know.
General
2 months ago
So a scale drawing of a school bus has a scale of 12 inch to 5 feet. If the length of the school bus is 412 inches on the scale drawing. I need to know the actual length of the bus and I need to explain or show my reasoning too.
General
2 months ago
Indicate whether each of the following equations is sure to have a solution set of all real numbers. Explain youranswers for each.a. 3(x + 1) = 3x + 1b. x + 2 = 2 + xc. 4x(x + 1) = 4x + 4x²d. 3x(4x)(2x) = 72x³
General
2 months ago
IfF(x) = f(xf(xf(x))),wheref(1) = 5, f(5) = 6, f '(1) = 2, f '(5) = 3,andf '(6) = 4,findF '(1).
General
2 months ago
Find the multiplicative inverse of 3 − 2i. Verify that your solution is corect by confirming that the product of3 − 2i and its multiplicative inverse is 1.2. What
General
2 months ago
Find the solution set to each inequality. Express the solution in set notation and graphically on the number line.a. 6x - 5 < 7x + 4b. x² + 3(x - 1) ≥ x² + 5
General
2 months ago
Find the distance betwen the folowing points.a. (4, −9) and (1, −5)b. 4 − 9i and 1 − 5ic. Explain why they have the same answer numericaly in parts (a) and (b) but a diferent perspective ingeometric efect
General
2 months ago
Solve the following equations.ln(x + 2) + ln(x − 2) = ln(9x − 24)
General
2 months ago
Solve forx.log(x) = log(y) + log(z) + log(y) − log(z)
General
2 months ago
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