02/12/22

Difference Quotient of a Function
Find the difference quotient for the following functionf(x) = 7x^2-3x-2
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02/12/22

A winch at the top of a 12-meter building pulls a pipe of the same length to a vertical position, as shown in the figure.
The winch pulls in rope at a rate of −0.1meter per second (ds/dt = −0.1 m/sec).Find the rate of vertical change and the rate of horizontal change at the end of the pipe when y = 4. (Round your... more
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02/12/22

4. The cost of producing x units of a product is C(x) = 0.004x2 – 9.6x + 7840. How many units should be produced to minimize the cost?

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02/11/22

Need help solving a problem
Cost of widgets follows a bell curve. The mean cost of a widget is $387, with a standard deviation of $19. Between what two values do about 68% of the widgets cost?
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02/11/22

Describe 𝜃=𝜋/9 by an angle of negative radian measure by determining the angle 𝛼 that is coterminal with 𝜃=𝜋/9 if −2𝜋<𝛼<0.
(Give an exact answer in units of radians. Use symbolic notation and fractions where needed.) 𝛼= ____rad
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02/11/22

What percent of city residents have Facebook or Instagram accounts? What percent of city residents have neither a Facebook nor an Instagram account?

A survey of a city’s residents shows that 62% have a Facebook account, 78% have an Instagram account, and 56% have a Facebook and an Instagram account
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02/11/22

The function s(t) describes the motion of a particle along a line.
(a) Find the velocity function v(t) of the particle at any time t ≥ 0.(b) Identify the time interval(s) on which the particle is moving in a positive direction. (Enter your answer using interval... more
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02/10/22

Math Question (Sinusoidal function)
The peak of the full moon occurs, on average, every 29.53 days, and the approximate value of the moon that is lit can be modeled by a sinusoid. Assume that all of the moon is lit at the peak of the... more
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02/07/22

Find Values (Details Below)
Find all values of θ if θ is in the interval ​[0°​,360°​) and has the given function value.                                                sin(theta)~0.6492916
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02/07/22

How would I graph this?
The cost of producing x units of a product is C = 60x + 1350. For one week management determined the number of units produced at the end of t hours during an eight-hour shift. The average values... more
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02/07/22

Answer the following question.
Month Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov DecTemperature 34.0 38.3 49.6 62.0 73.0 82.7 87.1 84.9 ... more
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02/07/22

Find the derivative of the function.

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02/05/22

standard deviation
Calculate the range, population variance, and population standard deviation for the following data set. If necessary, round to one more decimal place than the largest number of decimal places given... more
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02/04/22

A scale reads 126 N when a piece of copper is hanging from it. What does it read (in N) when it is lowered so that the copper is submerged in water?
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02/04/22

Find critical values of the function. If they exist, label as max or min / inflection point. Must show and use f' and f'' (use quadratic formula and round two decimal places). x^3 - 4x^2 - 5x + 7
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02/04/22

/if_a_kitten_weighed_100_grams_at_birth_and_gained_8_grams_per_day_in_how_many_days_will_the_kitten_triple_its_weight
how many days will kitten triple its weight
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02/03/22

Chapter Three Homework
Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 128 kg, and when the astronaut gets on a scale, the reading is 472 N. What is the acceleration (in m/s2) due to... more
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02/02/22

what is the product of -6 and a number
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02/02/22

How many O atoms are in 2.1 moles of Glucose?
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02/02/22

How are you going to apply it in your daily life? Explain why
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02/02/22

can anyone check is it 1/5
D4/5 (△ABC) = △A'B'C' and D1/4 (△A'B'C') = △A"B"C". What is the scale factor of the dilation between △ABC and △A"B"C"? A. 16/5 B. 1/5 C.5/16 D.21/20
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02/02/22

Quiz Stoichiometry
Before an experiment, you calculated that you should produce 55.7 g of copper. When you measure your final product, you only made 32.6 g. What is your percent yield?A. 71B. 17C. .59D. 59
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02/01/22

When a sample of food is burned, it caused the temperature of the water in a calorimeter containing 990 g of water to increase by 8.9 celsius. Calculate the amount of heat gained by the water.

When a sample of food is burned, it caused the temperature of the water in a calorimeter containing 990 g of water to increase by 8.9 celsius. Calculate the amount of heat gained by the water. What... more
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01/31/22

Statistic Help.
3. A sample of n = 9 scores has a M = 8. If on of the scores with a value of X = 12 isremoved from the sample of scores, what is the new mean for the remaining sample?4. A sample of scores has a M... more
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01/28/22

Iron has a density of 7.87 g/cm3. How many pounds does 1.20 cubic feet of iron weigh? [453.6 g = 1 lb, 2.54 cm = 1 in, and 1 ft = 12 in.]
Iron has a density of 7.87 g/cm3. How many pounds does 1.20 cubic feet of iron weigh? [453.6 g = 1 lb, 2.54 cm = 1 in, and 1 ft = 12 in.]
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