Oil leaked from a tank at a rate of r(t) liters per hour. The rate decreased as time passed, and values of the rate at two hour time intervals are shown in the table. Find lower and upper estimates for the total amount of oil that leaked out. V 63.6 Correct o L (lower estimate) 81.2 x Incorrect L (upper estimate) t (h) r(t) (L/h) 8.8 7.9 6.8 6.2 5.6 5.3 2 6. 8 10

Q: Write a response to the following question. Based on the table and graph below, what do you believe…

A: Step-by-step procedure to find the regression equation using Excel: In Excel sheet, enter Year in…

Q: 7. A spinner from a board game randomly indicates a real number between 0 and 10. The spinner is…

A: Probability Density Function: A continuous function f(x) is said to be the probability density…

Q: A person buys an item for $1,500 and then wants to make a 30% profit What should the selling price…

A:

Q: QUESTION 9 9) Indicate whether the matrix is in row-reduced form. 1 0 1 9. 1 8 -1 The matrix is in…

A: Yes. The matrix is in row-reduced form

Q: The figure shows estimated medical costs versus what a user actually pays for three health insurance…

A: Observe the graph clearly you can see that at 3000 estimated cost Value for 1000 deduction is around…

Q: You promise your niece that you will give her $1 on her first birthday and double that amount every…

A:

Q: The characteristic equation is. The eigenvalues are l if A= 1 |-2 |-2 4 a.λ-1,λ = 2,λ 3 O A = - 1,1=…

A: We can calculate eigenvalues By |A-λI|=0

Q: If u -( 1, k, -2, 5) and ||u||-6, what is the value of k? O +6 +/30

A: Answer

Q: You promise your niece that you will give her $2 on her first birthday and double that amount every…

A:

Q: 20. What is Elena's annual cost after her parents' contribution and her scholarship? A. $31,020 B.…

A: Annual Cost = $ 22,255 Total Cost for 4 year = 22,255 ×4                                  = $ 89,020…

Q: Sales last year for a department were $124,560. This year planned sales are forecast to increase by…

A: The sales of last year is $ 124,560.   The increment of 4.2 % in $ 124,560 is:

Q: Find the annual rate of simple interest if R190 amounts to R240.25 after 18 months.

A: the annual rate is 16.95 %

Q: 2 Let A = Find A-. -4

A:

Q: what is the terminal point of a vector with initial point that Ar (-1,0is equivalent to u 3,4 O B3)…

A:

Q: The point-normal equation 20x + 1) • y• (2-2) -0 goes through the point P and is normal to n. What…

A:

Q: The graph below shows sections of the relationships y = sin(0) and y = 0. The graph suggests that…

A:

Q: An investment of $1500 paid interest of $120. How much interest would $2000 invested at the same…

A: Let x represents the interest paid for the investment $2000. Given that, the interest paid for the…

Q: You have been offered two jobs that you are interested in.  The first job has a starting salary of…

A: The first job starting salary is $ 35000 annual rise = $ 2000 2nd year salary = 35000+2000…

Q: what is the rate of return when 25 shares of stock a, purchased for 30/share, are sold for $825? The…

A:

Q: Find the proceeds if the total selling price is $900, the accrued interest is $40, and the brokerage…

A: Given that information  the total selling price is $900, the accrued interest is $40, and the…

Q: What value would you project for a share of stock at the beginning of year 3? $

A: From the model of Gordon's growth the formula is given as: P = [ D (1+g) ] ÷ ( ke -g). P = current…

Q: If .99 cents is 80% off of the original price, how do I find the original price?

A: suppose the original price was x80% off of the original price means x-x×80%It means we are reducing…

Q: The amount raised was what percentage more than the funding goal

A: Funding Goal = 7500000 Raise money = 11385449   More money raised than goal = 11385449 - 750000 =…

Q: Suppose you have a coupon worth 6 dollars off any item at a mall. You go to a store at the mall that…

A: There are two ways: 1) I can use the coupon first and then use the 20% discount  2) I can use the…

Q: The interest rate on your credit card is 6% and the credit card company has notified you that your…

A: Please see the below answer.

Q: QUESTION 2 Which of the following matrices is not an elementary matrix? 1 (D) 0 1 0. (A) (B) (C) 2 0…

A:

Q: 4x - 15y - 3z = 7 - z = 2 x - 4y + 2z = -6 Ox= 34, y = 6, z= 2 O x = 33, y = 9, z = 2 Ox = 34, y =…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.