Functions - practice problems - page 5 of 13
Number of problems found: 246
- Directly and inversely
If z varies directly as x and inversely as y, and z = 16 when x = 3 and y = 2, find z when x = 5 and y = 3 - Square function
If z varies jointly as x and the square of y, and z = 20 when x = 4 and y = 2, find z when x = 2 and y = 4. - Jointly function
If z varies jointly as x and y, and z = 12 and x = 2 and y = 4, find z when x = 5 and y = 2 - Laurent series
Expand the function f (z) into the Laurent series at point z0 for the given annulus. f (z) = 1 / ((z-2) * (z-3)) a) z0 = 2, 0 3 - Consumption 58231
Assume that consumption C depends on income y according to the function C = a + by, where a and b are parameters. The slope of this function is 0.8, and c is €50 when Y is €30. Does it apply to the values of parameters a and b? - Center-symmetric 58201
Find out which we can write letters (uppercase) as center-symmetric. - Production 58191
The worker's daily production after t weeks is given by the function Q (t) = 50-2.7-0.4t. What will be its products in five weeks?
- The temperature 18
The temperature at 12:00 PM was 43°F. Over the day, the temperature decreased by 3.5°F per hour. What was the new temperature at 6:00 PM? - Arnel
Arnel bought six pencils for 25 pesos each, four markers for 30 pesos each, and a book that cost 243.95 pesos. How much will he pay in total? - Lunapark
At the county fair, rides cost $5 plus $2. Use the expression 5 + 2r to determine how much Sheila will spend if she goes on seven rides. - The product 2
The product of two functions is 10. If one of them is 2 1/3, find the other one. - Multiplicative inverse
Explain why the reciprocal of - 1 1/17 is the multiplicative inverse of - 17/18. - Conjugate equation
Find the numbers of a and b; if (a - bi) (3 + 5i) is the Conjugate of (-6 - 24i) - Using
Using the point-slope equation, find the equation containing (-7, 3) and slope m = -4 - Groceries
Arturo buys two cans of tomato soup, each $0.52, and 12 cans of chicken noodle soup, each $0.51. Thus, the total cost of these groceries is $0.51.
- Bay Area
Bay Area Rental Cars charges $14 a day and $0.12 per mile for renting a car. You rented a car for four days and drove 475 miles. Find the total cost of renting the car. - Josh works
Josh works mowing lawns and babysitting. He earns $7.20 an hour for mowing and $6.80 an hour for babysitting. How much will he earn for 1 hour of mowing and 6 hours of babysitting? - Limousine rent
Hana rented a limousine for prom. There was a one-time charge of $100 plus an hourly rate of $45. Her total cost for the night was $347.50. How many hours did Hana rent the limo for? - Profit, revenue, cost
Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x), if R(x) = 3x3 + 2x - 1 and C(x) = x4 - x2 + 2x + 3? - Expression money per time You started this year with $196 saved, and you continue to save an additional $19 per month. Write an algebraic expression to represent the total amount of money saved after m months.
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