Let f(x)=(7x-2)/(x+2). Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflection points of f. 1. f is concave up on which intervals...

Let f(x)=(7x-2)/(x+2). Find the open intervals on which f is concave up (down). Then determine the x-coordinates of all inflection points of f. 1. f is concave up on which intervals...

Let f be a function defined for all real numbers. Also, let f', the derivative of f, be defined as f'(x)=((x-2)^3))/x. Options are (-Infinite, 0) and (2, infinite) (-Infinite,...

1. Chips Ahoy wants to perform a study to determine the number of chocolate chips in their cookies. To that end, they collected a sample of 40 cookies. The mean of this sample is 23.95 chocolate chips...

Round to the nearest three decimal places. I'm not sure if i should take the derivative and then solve for 0. Using critical values. I'm very confused and my notes are no help.

Find the intervals in which g(x)< 0 and those in which g(x)>0

An employer claims that full time employees have a mean income of $35,000. A sample of 200 ?employees was considered. Their mean salary was $34,000. Assume a population standard ?deviation of $4,000...

You take a sample of 22 from a population of test scores, and the mean of your sample is 60. You know the standard deviation of the population is 10. What is the 99% confidence interval...

A person claims to be able to predict the outcome of flipping a coin. This person is correct 16/25 times. Compute the 95% confidence interval on the proportion of times this person can predict coin...

Express in interval notation 2x-5≤-11 or 5x+1≥6

The length of a rectangle is 5 inches more than twice the width. If the area is to be at least 18 square inches, what are the possibilities for the width?

a) what is the domain, range, and periodic y=csc x? b) what is the relative minimum in the interval 0<_x<_ pi c) what is the relative maximum ion the interval pi<_x<_2pi (<_...

a) y=x3 + e2x b) y=5xe-4x c) y=x2e-(x^x)

Determine the open intervals whewhere the graph of f (x)=-(1)/(x+1)^2 is concave up or concave down.

Consider the function f(t) = 6sqrt(x) + 9 on the inverval [1,10]. Find the average or mean slope of the function on this interval By the Mean Value Theorem we...

A generator produces electrical power, P, in watts, according to the function: P(R)= 120/ (0.4 + R)^2 where R is the resistance, in ohms. Determine the intervals on which the power...

Suppose g'(x)= x^4 +x^2 +1. Find the x values in the interval [-3,4] where g(x) takes its minimum. The answer is at x=-3 but why? I'm not sure how to get this.

Consider the function f(x)=5x+6x-1. For this function there are four important intervals: (-infinity,A],[A,B),(B.C) and [C,infinity) where A, and C are the critical numbers and the function...

For x E [-11,11] the function f is defined by f(x)=x6(x-2)5 1- on which two intervals is the function increasing? 2- Find the region in which the function is positive: 3- Where...

Please explain how to figure out the problem. Which answer is correct and why? a) f is not continuous on [-1,1] b) f is not defined on the entire interval c) f is not differentiable at...

How do you figure out this problem and which answer is right and why? Choices: a) [0,3] b) [-3,3] c) [-3/2,3/2] d) [-2,2] e) none of these

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