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Show all work please will give brainliest answer❕❗️❕❗️❕❗️❕❗️❕David drops a ball from a bridge at an initial height of 100 meters. (a) What is the height of the ball to the nearest tenth of a meter exactly 3 seconds after he releases the ball? (b) How many seconds after the ball is released will it hit the ground?
General
2 months ago
For each scenario below, choose the graph that gives the best representation (must view picture for questions A and B).
General
2 months ago
The function h(t)=-4.92t^2+17.69t+575 is used to model an object being tossed from a tall building, where h(t) is the height in meters and t is the time in seconds. Rounded to the nearest hundredth, what are the domain and range? domain: [0, 12.76] range: [1.8, 590.9] domain: [1.80,1276] range: [1.8, 590.9] domain: [1.80,12.76] range: [0, 590.9] domain: [0, 12.76] range: [0, 590.9]
General
2 months ago
2. Consider the quadratic equation 2x2 + 7x – 4 = 0. A. What is the value of the discriminant? Explain. B. How many solutions does the quadratic equation have and are those solutions rational, irrational, or nonreal? Explain. C. If the quadratic equation has real solutions, what are the solutions? Explain. Estimate irrational solutions to the nearest tenth.
General
2 months ago
Hooke's law for an elastic spring states that the distance a spring stretches varies directly as the force applied. If a force of 100 newtons stretches a spring 5cm, how much will a force of 360 newtons stretch the same thing?
General
2 months ago
How does the graph of f(x)=4 cos(1/2x)-3 differ from the graph of g(x)=4 cos(x)-3
General
2 months ago
What are the points of intersection of the equation of the circles x2 + 8x + y2 - 16y = 0 and x2 + 8x + y2 - 8y = 32
General
2 months ago
A middle school student studies the amount of time seventh and eighth graders spend playing video games on the weekend by collecting data from a large random sample of students in each grade. Her theory is that seventh graders will spend more time playing video games because eighth graders have more difficult classes and must spend more time on school work. In her samples, the mean time spent playing video games on the weekend is 122.4 minutes for seventh graders and 88.6 minutes for eighth graders. Assuming there are no outliers or skew, do the results support the student's theory? Select from the drop-down menus to correctly complete the statements. Since the samples were large and randomly chosen, we can use the samples to understand the populations. Because the sample mean for seventh graders is the sample mean for eighth graders, the results support the student's theory.
General
2 months ago
Which diagram represents the following sets? P = {x | x is an integer divisible by 2}; Q = {x | x is an odd integer}; R = {x | x is an integer divisible by 3}
General
2 months ago
PLEASE HELP. WILL MARK BRAINLIESTA medical test has a 95% accuracy of detecting a Condition Z if the person has it. It also has a 97% chance to indicate that the person does not have the condition if they really don't have it. If the incidence rate of this disease is 10 out of every 100:1.] What is the probability that a person chosen at random will both test positive and actually have the disease (i.e., get a true positive)?2.] What is the probability that a person chosen at random will test positive but not have the disease (i.e., get a false positive)?
General
2 months ago
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