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MATH SOLVE
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alice has eight good behavior stars and earns a new one each week. Mack has two good behavior stars and earns two new ones each week. In how many weeks will they have the same number of good behavior stars?
General
4 months ago
A student is running a 5-kilometer race. He runs 1 kilometer every 3 minutes. Select the function that describes his distance from the finish line after x minutes. f of x equals negative one third x plus 5 f of x equals negative one fifth x plus 3 f of x equals one fifth x plus 5 f of x equals one third x plus 3
General
4 months ago
It costs $0.80 to download a song from an online music store. Maxinehas $6.00 to spend on songs. The equation 0.80s = 6.00 can be used todetermine the number of songs s that she can afford to download. Solvethe equation, and interpret the solution
General
4 months ago
In 1970, 11% of americans completed four years of college; 43% of them were women. in 1990, 22% of americans completed four years of college; 53% of them were women (time, jan. 19, 1996). (a) given that a person completed four years 2 of college in 1970, what is the probability that the person was a woman? (b) what is the probability that a woman finished four years of college in 1990? (c) what is the probability that a man had not finished college in 1990?
General
4 months ago
Harry, Louis, and Niall are working with exponents. Harry claims 42.45 =410. Louis claims 42.45 = 47. Niall claims 42.45 = 167. Which student has thecorrect answer? Explain why.
General
4 months ago
3m -9n = 24; n = - 1,1,3
General
4 months ago
The Environmental Club’s goal is to collect9,525 cans by the end of four months. Howcan you find the number of cans the clubneeds to collect in September to meet theirgoal? How many more cans do they need? In June- 1,898In July- 2,643August- 2,287
General
4 months ago
20 POINTS!!! PLZ ANSWER!! On the moon, the time, in seconds, it takes for an object to fall a distance, d, in feet, is given by the function f(d) = 1.11√d. Part a: determine f(2) and explain what it represents. Part B: The imbrium basin is the largest basin on the moon. A reasonable domain for the height above the lowest point in the basin is given by {d|0 ≤ d ≤ 3805774}. What does this tell you about the basin. Part C: how long would it take a rock to drop from the rim to the bottom of the basin?
General
4 months ago
Mike works two part time jobs while going to college. He works 8 and half hours a week at the ice-cream store for $10.55 per hour and 7 hours a week at the movie theater for 13.85 per hour. Work each of the following problems in decimal form. 1. How much does Mike earn a week before taxes are taken out of his paycheck? 2. If 22 percent of Mike’s paycheck is withheld for taxes, how much money is left for Mike? 3. At which Job does Mike earn the most before taxes, how much more? 4. If Mike spends $50 a week on entertainment, what percent of Mike’s paycheck is left after he pays taxes? In decimal form.
General
4 months ago
Emily is 46 years old. Colin is 11 years older than Emily. Dan is 5 years younger than Emily. What is the total of their combined ages?
General
4 months ago
What is the value of c in the equation 2(x-3)+9=3(x+1)+x
General
4 months ago
What are the endpoint coordinates for the mid segment of △PQR that is parallel to PQ?Enter your answer, as a decimal or whole number.(I got, -3.5, 0.5 and -1, -0.5)
General
4 months ago
If you live in California, the decision to purchase earthquake insurance is a critical one. An article in the Annals of the Association of American Geographers investigated many factors that California residents consider when purchasing earthquake insurance. The survey revealed that only 119 of 344 randomly selected residences in Los Angeles County were protected by earthquake insurance. Estimate with 99% confidence the proportion of all L.A. County residences that have earthquake insurance.
General
4 months ago
Diana has available 80 yards of fencing and wishes to enclose a rectangular area. (a) Express the area A of the rectangle as a function of the width W of the rectangle. (b) For what value of W is the area largest? (c) What is the maximum area?
General
4 months ago
Marianne buys 16 bags of potting soil which come in 5/8 pound bags. This equals to 10 pounds of potting soil. Her father calls and says he needs 13 pounds of potting soil, how many additional bags should Marianne buy ?
General
4 months ago
15 Points need answer ASAPFind the product. (6m2 – 5m + 4)(–4m2 – 3m – 7)(a) 2m2 – 8m – 3(b) –24m4 + 2m3 – 43m2 + 23m – 28(c) –24m2 + 15m – 28(d) –24m4 – 38m3 – 73m2 – 47m – 28
General
4 months ago
Help 15 pointsFind the product. (7r – 8)2(a) 49r2 – 112r + 64(b) 49r2 + 64(c) 49r2 – 112r – 64(d) 49r2 – 64r + 64
General
4 months ago
weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of 50$. find the probability that a worker selected at random makes between $350 and $400.
General
4 months ago
Does there exist a pair of consecutive integers whose reciprocals sum to 3/4? Explain how you know.
General
4 months ago
A museum curator needs to frame a rectangular painting. The painting is 25 inches by 13 inches. If the frame has a width of x on all sides, what is the quadratic function that models the area of the painting and frame?
General
4 months ago
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