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MATH SOLVE
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ABC Electric uses this formula, f(x) = 750 − 10x, to depreciate computers, where f is the value of a computer andx is the number of months since its purchase.a. Calculate f(36). What is the meaning of f(36)?b. What is the meaning of b in f(b) = 60? What is the value of b?c. Write a formula for f^−1, and explain what it means in this situation.d. When will the depreciated value of a computer be less than $400?e. What is the meaning of c in f−1(c) = 60? What is the value of c?
General
4 months ago
Choose the correct definition of a random variable from the list below. A random variable is O one whose values describe the outcome of some chance process O one whose effect in an experiment cannot be distinguished from the effects of other variables. one that occurs in one of two possible states, labeled success and failure. O one that remains constant throughout an experiment one whose values correspond to a scale with a countable number of values.
General
4 months ago
if (a^3+27)=(a+3)(a^2+ma+9) then m equals
General
4 months ago
If x-9 is a factor of x2 – 5x – 36, what is the other factor?X-4X+4X-6X+6
General
4 months ago
Do the lengths a=9, b=12, c=15 form a right triangle?
General
4 months ago
The measure of the supplement of an angle is 20° More than three times the measure of the original angle. Find the measures of the angles
General
4 months ago
1) find the equation of the line parallel to x-5y=6 and through (4,-2).2) find the equation of the line perpendicular to y= -2/5x + 3 and through (2,-1) PLEASE ANSWER THANK YOU SO MUCH!!
General
4 months ago
PLEASE HELP!!! What is m∠AEB?Enter your answer in the box.°Line B D is slightly inclined with vertical intersects with line A C at E. Point C is on right side of line B D. The left upward and right downward angles of the intersecting lines are obtuse. The measure of angle A E B is labeled as left parenthesis 5 x minus 10 right parenthesis degrees. The measure of angle C E D is labeled as left parenthesis 3 x plus 40 right parenthesis degrees.
General
4 months ago
In a prior sample of U.S. adults, the Center for Disease Control (CDC), found that 8% of the people in this sample had pinworm but the margin of error for the population estimate was too large. They want an estimate that is in error by no more than 2.5 percentage points at the 95% confidence level. Enter your answers as whole numbers.(a) What is the minimum sample size required to obtain this type of accuracy? Use the prior sample proportion in your calculation. The minimum sample size is 1 U.S. adults.(b) What is the minimum sample size required to obtain this type of accuracy when you assume no prior knowledge of the sample proportion? The minimum sample size is 2 U.S. adults.
General
4 months ago
Enter numbers to evaluate ‐13−23.‐13−23= ‐13 + = Enter numbers to evaluate ‐13−(‐23).‐13−(‐23)= ‐13 + =
General
4 months ago
An urn is filled with marbles of various colors (but each marble only has one color). If the probability of pulling a red marble at random is 1/4 and the probability of pulling a blue marble at random is 1/3, what is the probability that a marble randomly pulled from the urn will be one of those two colors (red or blue)?
General
4 months ago
use elimination to solve. For a production of sweeney Todd in Las Vegas, orchestra seats cost $42 and mezzanine seats cost $25. If a group of 14 people show up and spend a total of $486, how many of each kind of seat did they buy? please help!
General
4 months ago
ASAP please help I’m failing math
General
4 months ago
A recipe for snack mix call for 4 3/4 cups of cereal the amount of peanuts needed is 1 and 2/3 cups less than the amount of cereal neededHow many cups of peanuts?How many cups of cereal and Peanuts are needed in all?
General
4 months ago
Bob has $150 in his savings account and saves $40 per month.Question 1 options:y = 150 + 40y = 150x + 40y = 40x + 15040x = y + 150
General
4 months ago
Point A is located at (-5, 2) on a coordinate grid. Point A is translated 8 units to the right and 3 units up to create point A.Which measurement is closest to the distance between point A and point A' in units?A.8.1B.8.5C8.9D9.4
General
4 months ago
what is 9bc - 6b written in factored form?
General
4 months ago
While your family is visiting Deep creek lake, you and your mother decide to go boating. The Rangers charge $6.50 per hour in addition to $25.00 deposit to rent a canoe. If you wish to rent the canoe from 12:30 to 3:30 PM, write and solve a linear equation to find the total cost to rent the canoe.
General
4 months ago
The area of a square equals the square of a length of the side of the square. The perimeter of a square equals the sum of the lengths of all four sides. The sum of the areas of two squares is 65, while the difference in their areas is 33. Find the sum of their perimeters.
General
4 months ago
The altitude at which we boil an egg affects how long it takes for the egg to achieve perfect hardness.It takes 198 seconds to boil a perfect egg at the lowest place possible, the edge of the Dead Sea, which has analtitude of -418 meters.The highest place possible is the summit of Mount Everest which has an altitude of 8848 meters. It takes 209seconds to boil a perfect egg there.T(a) models the time (in seconds) it takes to boil a perfect egg at an altitude of a meters.Which number type is more appropriate for the domain of T?
General
4 months ago
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