Raymond B.

08/02/23

PRECAL MATH HW CHAPTER 6

Approximate the real zero between -1 and 1 accurate to three places for the polynomial 𝑓 (𝑥) = 𝑥^4 − 3𝑥^3 + 1 using the Intermediate Value Theorem as described in these notes.

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Math

08/02/23

For the set {30, 80, 50, 40, x}, the mean, mode, and median are equal. Find x.

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Statistics

08/02/23

Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 10 beats/minute.

Suppose that pulse rates among healthy adults are normally distributed with a mean of 79 beats/minute and a standard deviation of 10 beats/minute. What proportion of healthy adults have pulse rates... more

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Calculus

08/02/23

Find F ' (x) given that

F(x)= (2x3+3x2-5)(5x2-2x+1)

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Calculus

08/02/23

Sketch the graph of the floor function

f(x) =[x + 1] , over the interval [-3, 3)

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Math

08/02/23

how many acres of each crop should he plant?

A farmer has 1310 acres of land on what you guys corn wheat in soybeans. It cost $45 per acre to grow corn 60 to grow wheat and 50 to go soybeans because of the market demand. The farmer will grow... more

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Math Test Preparation Precalculus

08/02/23

Hi, can someone explain me how to solve 2tan(x)=1-tan^2(x) and in the range. [0,2π)

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Math Algebra 2

08/02/23

System of Linear equations

The Royal Fruit Company produces two types of fruit drinks. The first type is 40% pure fruit juice, and the second type is 65% pure fruit juice. The company is attempting to produce a fruit drink... more

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Math

08/01/23

A city has a population of 370,000 people. Suppose that each year the population grows by 7%. What will the population be after 15 years? Round your answer to the nearest whole number.

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Math

08/01/23

A ball is thrown from a height of 70 feet with an initial downward velocity of 4 ft/s. The ball's height h (in feet) after t seconds is given by the following. h=70-4t-16t^2.

How long after the ball is thrown does it hit the ground?Round your answer(s) to the nearest hundredth.

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Precalculus

08/01/23

How do I solve with binomial theorem here?

Use the binomial theorem to find the term containing x^-19 in the expansion (-3x+1/x^6)^9

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Algebra 2

08/01/23

√100 + √-40 + √25 - √-10 simplified in a + bi form

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Math

07/31/23

Suppose that cellphone cases are currently sold at $13.50. The following equation shows the number of cellphone cases sold 𝑥, in thousands, and the price, 𝑝: 100𝑥2 + 8𝑝2 = 2358

If the price of cellphone cases are decreasing at $0.12 per week, find the rate of change of the sales.

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Math

07/31/23

Need equation to solve

A puppy in a box weighs 2 ounces how much does the puppy weigh hint is 2n can’t figure out the formula to solve

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Math

07/31/23

The cost, in thousand of dollars, of making x items, in hundreds, is given by C(x) = −12x − 75. The revenue function is given by R(x) = −6x^2 + 30.

Determine the number of items that should be sold to maximize profit.

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Calculus

07/30/23

Let f(x)=x^3-3x^2+20x-268

A solution to f(x)=0 can be found in the interval <x<(Enter a pair of consecutive integers m, M where a solution is guaranteed to exist in the interval m<x<M).If you draw the line... more

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Calculus Precalculus

07/29/23

The derivative of 1,000 is equal to _______.

A. ∞ B. nonexistence C. − ∞ D. 0

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Calculus

07/28/23

why the direction to the north is negative?

Car A is traveling west at 50 mi/h and car B is traveling north at 60 mi/h. Both are headed for the intersection of the two roads. At what rate are the cars approaching each other when car A is 0.3... more

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Precalculus Trigonometry

07/28/23