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MATH SOLVE
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What is the measure in radians for the central angle of a circle whose radius is 9 cm and intercepted arc length is 7.2 cm
General
4 months ago
When a car's tire pressure is 30 pounds per square inch (psi), it averages 20.5 mpg of gasoline. If the tire pressure is increased to 35 psi, the car averages 21.1 mpg of gasoline. Answer parts a) through c).a) If someone drives an average of 23,000 mi per year, how many gallons of gasoline will he save in a year by increasing his tire pressure from 30 to 35 psi? b.) If gasoline costs $2.00 per gallon, how much will he save in a year? c.) Assume that there are about 140million cars in a country and that these changes are typical of each car, how many gallons of gasoline would be saved if all drivers increased their cars' tire pressure?
General
4 months ago
What choice is equivalent to the quotient when x>0? [Photo attached]
General
4 months ago
250 randomly selected high school students were surveyed about the clubs in which they participate. 15 students are in the chess club, 59 are in the art club, 32 are in the science club, 23 are in the math club, 60 are not in any club, and 28 are in clubs not listed on the survey. Which inference can best be made from the results of the survey? Most students are in more than one club. Most students are not in a club. No students are in more than one club. More students are in the art club than any other club.
General
4 months ago
Complete the square for 3x^2-12x=9
General
4 months ago
What is 1 8/9 x 3 1/4 rounded ? ASAP need help
General
4 months ago
Please explain how to solve and show answer thanks
General
4 months ago
What is the median for the set of data shown
General
4 months ago
Consider the following function. f(x) = 16 − x2/3 Find f(−64) and f(64). f(−64) = f(64) = Find all values c in (−64, 64) such that f '(c) = 0. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) c = Based off of this information, what conclusions can be made about Rolle's Theorem? This contradicts Rolle's Theorem, since f is differentiable, f(−64) = f(64), and f '(c) = 0 exists, but c is not in (−64, 64). This does not contradict Rolle's Theorem, since f '(0) = 0, and 0 is in the interval (−64, 64). This contradicts Rolle's Theorem, since f(−64) = f(64), there should exist a number c in (−64, 64) such that f '(c) = 0. This does not contradict Rolle's Theorem, since f '(0) does not exist, and so f is not differentiable on (−64, 64). Nothing can be concluded.
General
4 months ago
need help with this math
General
4 months ago
Identify the parameters p and n in the following binomial distribution scenario. The probability of winning an arcade game is 0.718 and the probability of losing is 0.282. If you play the arcade game 20 times, we want to know the probability of winning more than 15 times. (Consider winning as a success in the binomial distribution.)
General
4 months ago
Linear EquationWhich line represents the linear equation-3y = 15 - 4x?The equation -3y = 15 - 4x rewritten in slope-interceptform isThe y-intercept is and the slope of the line isLinev is the graph of the line -3y = 15 - 4x.
General
4 months ago
Jamar is planning to survey a company’s employees. He will ask employees how long they’ve worked for the company and how much they are paid. Do you think this data set will be skewed left, skewed right, or symmetric? Explain why.
General
4 months ago
A group of 125 teenagers were asked which of the following activities they would most likely choose to spend their free time doing: reading a book, watching television, playing video games, or listening to music. The results are displayed in the circle graph below. How many teenagers chose watching television?35404550there is an attachment at the bottom.
General
4 months ago
What is the completely factored form of d4 − 81? (d + 3)(d − 3)(d + 3)(d − 3) (d2 + 9)(d + 3)(d − 3) (d2 + 9)(d − 3)(d − 3) (d2 + 9)(d2 − 9)
General
4 months ago
The factored form of a quadratic equation is y=(2x+1)(x-5), and the standard form is y=2x²-9x-5. Which of the following statements accurately describes the graph of y?A) The x-intercepts are -1 and 5, and the y-intercept is -5.B) The x-intercepts are -1/2 and 5, and the y-intercept is -5.C) The x-intercepts are -1/2 and 5, and the y-intercept is 5.D) The x-intercepts are 1 and -5, and the y-intercept is -5.
General
4 months ago
PLEASE HELP!!We used these functions to represent the two sides of the equation:f(x) = 3xg(x) = 4x + 1Graph the functions y = f(x) and y = g(x) on the same coordinate plane.At which points are the functions y = f(x) and y = g(x) equal? What are the x-values of the solution?How many solutions are there to the equation f(x) = g(x)? How do you know these are solutions?
General
4 months ago
ASAP! What is the y intercept of the line perpendicular to the line y = 4/3x + 1 that includes the point (4, 1)?
General
4 months ago
A student researcher wishes to examine the effectiveness of a statisticalwork laboratory on graduate students' overall understanding of application ofstatistical analyses. The researcher administers a survey to 15 students whoare seated at the front of the laboratory. How could this study be improved?Select all that apply.A. Use an instrument to test statistical analysis understanding.B. Select a random sample of students who go to the worklaboratoryc. Use a larger sample size.D. Administer instruments to a group who does not go to the worklaboratory, as well.
General
4 months ago
A playground is in the shape of a square with each side equal to 109 yards. It has skating rinks in the shape of the quadrants of a circle at each corner. If the area of the remaining field is 9055, find the radius of each skating rink. Also, find the cost of cementing the skating rinks at $2.50 per square yards. Use
General
4 months ago
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