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MATH SOLVE
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The probability that a person with certain symptoms has hepatitis is 0.75. The blood test used to confirm this diagnosis gives positive results for 86?% of people with the disease and 5?% of those without the disease. What is the probability that an individual who has the symptoms and who reacts positively to the test actually has? hepatitis?
General
2 months ago
The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the eighth grade level.Step 1 of 2 : Suppose a sample of 2004 tenth graders is drawn. Of the students sampled, 1584 read above the eighth grade level. Using the data, estimate the proportion of tenth graders reading at or below the eighth grade level. Enter your answer as a fraction or a decimal number rounded to three decimal places.
General
2 months ago
the point (-3,-2) is rotated 180 degrees about the origin. what are the coordinates of its image?
General
2 months ago
help me to match this proof this is very difficult for me
General
2 months ago
To obtain information on the corrosion-resistance properties of a certain type of steel conduit, 45 specimens are buried in soil for a 2-year period. The maximum penetration (in mils) for each specimen is then measured, yielding a sample average penetration of x = 53.4 and a sample standard deviation of s = 4.4. The conduits were manufactured with the specification that true average penetration be at most 50 mils. They will be used unless it can be demonstrated conclusively that the specification has not been met. What would you conclude? (Use α = 0.05.) State the appropriate null and alternative hypotheses.
General
2 months ago
Which describes the collection of all points in the same plane that are 8 1/2 inches from point T? A.) Circle T with radius 8 1/2 inches B.) circle T with diameter 8 1/2 inches C.) circle T with radius 17 inches D.) a sphere with center T and radius 8 1/2 inches
General
2 months ago
Use Euler's method with step size 0.2 to estimate y(2), where y(x) is the solution of the initial-value problem y' = 2 − 3xy, y(1) = 0. (Round your answer to four decimal places.)
General
2 months ago
help me please and explain. FIND THE AREA OF THE UNSHADED REGION
General
2 months ago
Consider the two planes.In the diagram, the only figure that could be parallel to linecline a.line b.line d.plane Q.
General
2 months ago
GEOMETRY PLEASE HELP
General
2 months ago
Ramona used the regression equation y = 444x - 21.29, Ramona determined that her answer was incorrectwhere x represents height and y represents shoe size, to because a man who is -17.52 inches tall does notpredict the approximate height of a man who wears amake any sense. What was Ramona's mistake?size 8.5 shoeShe substituted the 8.5 for the wrong variable.1. y = 444(8.5) - 21.29She should have added 444 and 8.5.2 y = 3.774 - 21.29The value for y should be positive.3 y=-17.52The solution of -17.52 should be the shoe size
General
2 months ago
Find equations of the following.3(x − z) = 12arctan(yz), (1 + π, 1, 1)(a) the tangent plane (b) parametric equations of the normal line to the given surface at the specified point. (Enter your answer as a comma-separated list of equations. Let x, y, and z be in terms of t.)
General
2 months ago
The probability distribution of a discrete random variable X is given by: P(X = −1) = 1 5 ,P(X = 0) = 2 5 and P(X = 1) = 2 5 (a) Compute E[X]. (b) Determine the probability distribution Y = X 2 and use it to compute E[Y ]. (c) Determine E £ X 2 ¤ using the change-of-variable formula. (You should match your answer in part (b). (d) Determine V ar (X).
General
2 months ago
W hich of these scales is equivalent to the scale 1 cm to 5 km? Select all that apply. (Lesson 1-11) A. 3 cm to 15 km D. 5 mm to 2.5 km B. 1 m m to 150 km E. 1 mm to 500 m C. 5 c m to 1 km IF ANYONE ANSWERS THIS IN 5 MINUTES YOU WILL GET BRAINLIEST
General
2 months ago
Which of the following set of quantum numbers correctly describes an electron in a 5d orbital? A) n = 5, l = 3, ml = +3, ms = +1/2 B) n = 5, l = 2, ml = 0, ms = +1/2 C) n = 5, l = 2, ml = +3, ms = +1/2 D) n = 5, l = 3, ml = +2, ms = +1 E) n = 5, l = 2, ml = +2, ms = +1
General
2 months ago
What is the surface area of the solid figure represented by the net? A. 338.24 square centimeters B. 373.80 square centimeters C. 444.92 square centimeters D. 747.6 square centimeters
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2 months ago
HURRY I WILL MARK BRAINLIEST2. Your bank account has -$15 in it. You deposit $5 per day.(a) How much money is in your account after 5 days? Show your work.(b) After you have made all of your deposits, you withdraw $2 a day until your account balance is $0. How many days will you withdraw $2? Show your work.Answer:
General
2 months ago
If the radius of a flying disc is 7.6 centimeters, what is the approximate area of the disc?
General
2 months ago
Solve 4^x+2 = 12 for x using the change of base formula log base b of y equals log y over log b.
General
2 months ago
What is the slope of a trend line that passes through the points (5, 80) and (7, 65)?
General
2 months ago
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