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Use a definite integral to find the area under the curve between the given x -values.
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A random sample of 50 four-year-olds attending day care centers provided a yearly tuition average of $3987 and the population standard deviation of $630. Find the 90% confidence interval of the true m
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El promedio de los numeros N1, N2 y N3 es 4. Cuanto vale N3 si N1 es igual a N2 y N1 es la mitad de N3
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Paul needs 214 2 1 4 yards of fabric to make a tablecloth. How many tablecloths can he make from 1812 18 1 2 yards of fabric?
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1. The expressionx^3+3x^2+x-5 represents the total length across the front of the mansion. Find the length of side I. Show all work. X will stay a variable and your answer will be a polynomial 2. 2. T
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A rose garden is designed by joining a rectangle and a semicircle, as shown below. The rectangle is 28ft long and 21ft wide. If the gardener wants to build a fence around the garden, how many feet of
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Beta Co. sold 10,000 shares of common stock, which has a par value of $25, for $28 per share. The company also sold 1,000 shares of $100 par value preferred stock for $110. Assume the balance in retai
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Last year, Frank opened an investment account with $6400 . At the end of the year, the amount in the account had increased by 29.5% . How much is this increase in dollars? How much money was in his ac
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Earth has a surface area of approximately 197,000,000 square miles and a total land area of approximately 58,000,000 square miles. What fraction of the Earth's surface is land?
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Wayne has $12.44 in his wallet. Janice has a debt note for $15.82 in her wallet. Find the difference between these amounts.
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An element with mass 730 grams decays by 27.6% per minute. How much of the element is remaining after 12 minutes, to the nearest 10th of a gram?
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At the theater, one section of seats has 8 rows with 12 seats in each row. In the center of each of the first 3 rows are 4 broken seats that cannot be used. How many seats can be used in the section?
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Quentin pizza sells three sizes of pizzas. if you buy all three sizes, it costs $46.24. A medium pizza costs $15.75 and a large pizza costs $17.50. how much does the small pizza cost
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Kelly and Daniel wrote the following proofs to prove that vertical angles are congruent. Who is correct? Line segment NT intersects line segment MR forming four angles. Angles 1 and 3 are vertical ang
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Someone i really need no one ever helps me please someone help. And if i dont finish i am gonna get in trouble 1) Clearly define coordinate system and origin. 2) Plot points at the end of each line s
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Luxurious rental cars charges $74.00 per day plus $1.5 per mile to rent a convertible. If Isabella paid $95.60 for a one-day rental, how many miles did she drive?
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There are 2 row of 8 chairs are up in the library for a puppet show.how many chairs are set up? Use distributive property to solve
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A set of data items is normally distributed with a mean of 40 and a standard deviation of 7. Convert 33 to a z-score.
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SOMEONE PLEASE HELP ! WORTH 30 POINTS ! 1) Clearly define coordinate system and origin. 2) Plot points at the end of each line segment on the flag. - (DONE) 3) For each line: a. Label each line with t
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If f(x) = 2x + 3 and g(x) = x2 − 1, find the values of combining these functions. Match each combined function to its corresponding value.
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At Liberty School, 168 students, or 56% of the total student body, are taking a foreign language course. How many students does Liberty School have in all?
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Please help me in Math Write two expressions (with at least two terms each) that when added together have a sum of -4n + 6.
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1.) Solve by substitution. What is the solution set?
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Michael and Abdi share some football cards between themselves. They share them in ratio Michael: Abdi of 4: 5 Abdi gets 35 cards. a) What fraction does Abdi get? b) What fraction does Michael get? c)
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I have a few math questions (without calculator) 1. lne^2 = 2. ln (square root of e) = 3.
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Barry crogran is a sales representative for a medical supply company. His 2010 sales increased by 16% over 2009 sales, s. Write an Expression for 2010 sales
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A new fitness center opened up with 24 clients. Each week they are signing up an average of 5 new members. The business owner wrote the explicit formula for this situation as being A(n) = 24 + (n - 1)
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Marrisa added 1.56 and 13.47. She got 29.07. What mistake could Marrisa have made? She forgot to move the decimal point to the left after she added. She lined up the front numbers instead of the decim
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50% of all the cakes jenny baked that week were party cakes, 1/5 were fruit cakes and the remainder were sponge. What percentage of cake were sponge cakes?
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While on a ski vacation, a group can rent pairs of skis and snowboards by the week. They get a reduced rate if they rent 7 pairs of skis for every 3 snowboards rented. The reduced ski rate is $45.50 p
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If sin(x) = 1 10 and x is in quadrant i, find the exact values of the expressions without solving for x.
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Bonnie made two trips to Sweet Frog for frozen yogurt this week. She paid $0.45 per ounce each time. She purchased 7.2 ounces the first time and 6.8 ounces the second time. Rounded to the nearest cent
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Elle placed a bucket under a leaky roof. The bucket was 2/5 full after one-half hour. What is the rate in buckets per hour
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Find the limit. use l'hˆopital's rule if appropriate. if there is a more elementary method, consider using it. if l'hˆopital's rule does not apply, explain why. lim x→∞ (1 + a x ) bx
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"a clinical trial tests a method designed to increase the probability of conceiving a girl. in the study 320 babies were born, and 288 of them were girls. use the sample data to construct a 9999
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Use stokes' theorem to evaluate c f · dr where c is oriented counterclockwise as viewed from above. f(x, y, z) = i + (x + yz)j + (xy − z )k, c is the boundary of the part of the plane 7x + 6y + z =
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Use spherical coordinates. find the volume of the solid that lies within the sphere x2 + y2 + z2 = 81, above the xy-plane, and below the cone z = x2 + y2 .
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Suppose a student has no more than t minutes to write an examination consisting of twoquestions, 1 and 2. he receives a points if he gets question 1 correct and b points if he gets question 2 correct.
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One-way anova partitions the total sum of squares into the sum of squares between and the sum of squares block.
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Prove that however one selects 55 integers 1 ≤ x1 < x2 < x3 < ... < x55 ≤ 100, there will be some two that differ by 9, some two that differ by 10, a pair that differ by 12, and a pair that differ
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Obtain a point estimate of and calculate the estimated standard error. [round your answer to 2 decimal places.] the point estimate of is
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carton has a length of 1 2/3 feet width of one and 16 feet and height of 1 1/5 feet what is the volume of the carton
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Lindsey found a new job as an insurance salesperson. She has her choice of two different copensation plans. Plan F was described to her as a $450 base weekly salary plus a 10% commission on the amount
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Convert the following using conversion factor method. show your work. round to the nearest tenth if necessary. 9000 pounds to tons= Also, 13 miles to kilometers=
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Using a graph find the Constant of Proportionality. Then explain what the points (0,0) and (6,72) represent
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What is the percent increase if your salary went from $95 to $100 per week? Round your answer to the nearest tenth, if necessary.
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According to the school survey, 12% off the students at rockwood high school speak Spanish. There are 36 students at the high school who speak Spanish. How many students were surveyed?
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Which statement best reflects the solution(s) of the equation? 1/x+1/x−3=x−2/x−3 a. There is only one solution: x = 1. The solution x = 3 is an extraneous solution. b. There are two solutions:
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12 POINTS!!! Rhonda plans to buy an $85 Father's Day present for her father, and the holiday falls on the third Sunday of June. She can afford to put it on layaway with a 20% down payment and $8 a mon
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Sylvia has a catering business. She is putting 1,120 mints into trays. Each tray holds 35 mints. How many trays does Sylvia need?
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