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The curvature of the helix r(t)=(acost)i+(asint)j+(bt)k (a, b is greater than or equal to 0) is k=a/(a^2+b^2). What is the largest value k can have for a given value of b?
General
2 months ago
The probability that a person has a certain disease is 0.03. Medical diagnostic tests are available to determine whether the person actually has the disease. If the disease is actually present, the probability that the medical diagnostic test will give a positive result (indicating that the disease is present) is 0.92. Of the disease is not actually present, the probability of a positive test result (indicating that the disease is present) is 0.01. a. If the medical diagnostic test has given a positive result (indicating that the disease is present), what is the probability that the disease is actually present
General
2 months ago
Which of the following is the biggest limitation of correlational research? a. While correlations allow researchers to describe relationships between two variables, they do not explain the relationship. b. Its results can only be applied to one subject at a time. c. No relationship between variables is ever consistent, so findings cannot be applied to the real world. d. The manipulation of a correlational variable requires an ABAB design, which is not always practical
General
2 months ago
This table shows how many students from two high schools attended afootball game.A student is randomly selected.What is the probability that a student did not attend the game, given that thestudent is from Westville? Round your answer to two decimal places.
General
2 months ago
If two or more polygons are congruent, which statement must be true about the polygons? Read all of the choices before deciding.A. Pairs of corresponding angles have the same measure.B. Pairs of corresponding sides have the same length.C. The polygons are parallelograms.D. The polygons are regular.E. Rigid transformations can be used to map one polygon onto the other.A. A, B, C, D, and EB.A, B, and EC. A, C, D, and ED. A, C, and E
General
2 months ago
A car travels along a straight stretch of road. It proceeds for 16.2 mi at 57 mi/h, then 24.6 mi at 44 mi/h, and finally 45.1 mi at 37.8 mi/h. What is the car’s average velocity during the entire trip? Answer in units of mi/h.
General
2 months ago
An insurance company issues life insurance policies in three separate categories: standard, prefferred, and ultra-preferred. Of the company’s policyholders, 50% are standard, 40% are preffered, and 10% are ultra-prefferd. Each standard policyholder has probability 0.010 of dying in the next year, each preferred policyholder has probability 0.005 of dying in the next year, and each ultra-preferred policyholder has probability 0.001 of dying in the next year. Now, suppose a policyholder dies in the next year. What is the probability that the deceased policyholder was ultra-preferred
General
2 months ago
2/3(6h-9)=6 A:-1. B:1. C:3. D:5
General
2 months ago
Peter travels to his uncle's home 30km away from his place.He cycles for two thirds of the journey before the bicycle develops a mechanical problem and he has to push it for the rest of the journey. If his cycling speed is 10km/hr faster than his walking speed and he completes the journey in 3hr 20minutes, determine his cycling speed?
General
2 months ago
HELP 25 POINTS ASAP PLEASE BRAINLIST TO CORRECT ANSWERFind the area of a triangle with a base of (4x+3) and a height of (4x-3)
General
2 months ago
Mega Movies hosted a film premiere on Friday night. They charged $8 for adults and $5 for children. One hundred eight adults and children attended, and $777 was made in ticket sales. How many children and how many adults went to the film premiere?
General
2 months ago
A toy a maker needs to put a rectangular piece in the side of a toy. He knows from measuring that the top and bottom of the piece have a width of 2 inches. He also measured one length to be 5 inches. What is the length of the last side?
General
2 months ago
how do you do this??14cents/oz = $__/Ib????????????????
General
2 months ago
how do you calculate percent of change( i forgot Lol)
General
2 months ago
2Find the distance betweenthe points A (3.5) and B (78)
General
2 months ago
Find mWrite answer as an integer or as a decimal rounded to the nearest tenth
General
2 months ago
A coordinate grid with a line labeled y equals StartFraction 2 over 5 EndFraction x minus 5 passing through the points (negative 5, negative 7) and (0, negative 5)Fiona wrote the linear equation y = y equals StartFraction 2 over 5 EndFraction x minus 5.x – 5. When Henry wrote his equation, they discovered that his equation had all the same solutions as Fiona’s. Which equation could be Henry’s?x – x minus StartFraction 5 over 4 EndFraction y equals StartFraction 25 over 4 EndFraction.y = x – x minus StartFraction 5 over 2 EndFraction y equals StartFraction 25 over 4 EndFraction.y = x – x minus StartFraction 5 over 4 EndFraction y equals StartFraction 25 over 2 EndFraction.y = x – x minus StartFraction 5 over 2 EndFraction y equals StartFraction 25 over 2 EndFraction.y = Its D!
General
2 months ago
A coordinate grid with 2 lines. The first line is labeled g(x) and passes through the points (negative 3, 0) and (0, 2). The second line is labeled f(x) and passes through the points (negative 3, 0) and (0, 2). What is the solution to the system of linear equations? (–3, 0) (–3, 3) (0, 2) (3, 1)
General
2 months ago
Which values of m and b will create a system of equations with no solution? Select two options. y = mx + b y = –2x + A system of equations. y equals m x plus b. y equals negative 2 x plus StartFraction 3 over 2 EndFraction. A coordinate grid with a line labeled y equals negative 2 x plus StartFraction 3 over 2 EndFraction and passes through the points (9, 1.5) and (1, 0.5). m = –3 and b = m equals negative 3 and b equals negative StartFraction 2 over 3 EndFraction. m = –2 and b = m equals negative 3 and b equals negative StartFraction 1 over 3 EndFraction. m = 2 and b = m equals 2 and b equals negative StartFraction 2 over 3 EndFraction. m = m equals StartFraction 3 over 2 EndFraction and b equals negative StartFraction 2 over 3 EndFraction and b = m equals negative StartFraction 3 over 2 EndFraction and b equals negative StartFraction 2 over 3 EndFraction m = -2 and b = m equals negative 2 and b equals negative StartFraction 2 over 3 EndFraction
General
2 months ago
I have tried to to write the inequality for this but not unsure of my answer,please help me. here it is........A college is currently accepting students that are both in-state and out-of-state. They plan to accept two times as many in-state students as out-of-state, and they only have space to accept 200 out-of-state students. Let x = the number of out-of-state students and y = the number in-state students.I think the answer is x>0 and y>0
General
2 months ago
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