
At noon there are 20 inches of water in a tank. After several hours there was 18 inches of water left. What is the percent decrease?

A vacuum cleaner dealership sold 350 units in 2011 and 397 units in 2012.
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Josh earned a total of x in his math class last marking period. The number of points he earned in each of four categories was divided as follows. homework= 1/5 of total points, quizzes= 1/4 of total p
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There are 2 square that are similar. One has been dilated by a scale factor of 2.5. One measurement given to you is the larger square has a width of 10 1/4. Find the area of the smaller square in deci

HELP I NEED THIS BEFORE 12:00 PM : For the figures below, assume they are made of semicircles, quarter circles and squares. For each shape, find the area and perimeter. Give your answer as a completel

A plane has a cruising speed of 300 miles per hour when there is no wind. at this speed, the plane flew 600 miles with the wind in the same amount of time it flew 400 miles against the wind. find the

Find the exact value of the following expression which basically stands for the sum of cos1 , cos2 ,cos3 all the way up to cos179. Do not use a...
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A person's blood pressure follows a sine wave corresponding to the beats of the heart. A particular individual's blood pressure at time t (measured

1. Let M be an m x n matrix, X a column vector of n unknowns and V a given column vector with m entries. Moreover, suppose V is not in the span of

dear friends i am studying electrical engeneering in palestine gaza i want you to help me i want exams of MATH165 for ROCHESTAR university this
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Here is a t shape made from 3 identical rectangles. The area of the shape is 90cm. Work out the value of x

Find dz/dx when x*e^(2y)+y*z+z*e^(4x)=0 I derived the equation with respect to z and then with respect to x and then made it a fraction, getting:
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The story an example 3 pays 29 for each case of energy drink write a variable expression for the cost of C cases evaluate the expression to find the cost of 5 cases
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Hi I want to know how to solve this issue draw and write to explain how these two problems are different 3515=_____and 4326=

Suppose we have a group of 10 light users and 10 heavy users. what is the probability that exactly 3 of the 20 users are hiv positive?

A young sumo wrestler, Hayao, is gaining weight for an upcoming tournament that is 6 months away. When he begins his new diet, he weights 208 pounds. At the time of the tournament he weights 262 pound

Graph a system of equations to approximate the value of x, the rate of depreciation. Give your answer as a percent. about 4% about 13% about 1.2% cannot be determined

Prove that n distinct pointvalue pairs are necessary to uniquely specify a polynomial of degreebound n, that is, if fewer than n distinct pointvalue pairs are given, they fail to specify a unique p

I am a biology major and perusing a career in food safety. I work at a sushi place and today I got to do some supervisor work but one task consisted of me filling out a chart which was to determine th

The highest common factor and the lowest common multiple of two numbers A and B are 12 and 168 respectively.Find the values of A and B with the exception of 12 and 168

7 A triangle is rightangled if the sides are a = m2 − n2, b = 2mn and c = m2 + n2 where m and n are positive integers, and m > n. Show that this is true by substituting into the equation c2 = a2 +

Mr . Hartland bought x number of shirts for the new members of het chorus. The cost for x number of shirts, including $3.99 shipp6, was $77.49 . Each shirt cost $12.25. THERE WAS NO SALE TAX ON THIS P

Jan work 4 hours on a job and ted worked 5 hours both were paid the same hourly rate together they earned $31.50 how much did each receive
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You scored 72% on the Unit 1 exam and then 90% on the unit 2 exam. what was your percentage acorr increase

A lowwattage radio station can be heard only within a certain distance from the station. On the graph below, the circular region represents that part of the city where the station can be heard, and t

The table shows the relationshio between 2 variables. Which selection describes the relationship? X  Y  1  5  2  1  3  7  4  13 A. Increasing; linear B. Increasing; nonlinear C. Decreasi

Victoria when shopping for ingredients to make a stew the table shows the way in the cost of each of the ingredients that she bought what is the price for 1 pound of bell peppers

If A denotes some event, what does À denote? If P(A) 0.998, what is the value of P(A)? If P(A)0.998, is A unlikely? If P(A)0.998, what is the value of P(A)?

In a certain weather forecast, the chances of thunderstorm are stated “2 in 25”. Express the indicated degree of likelihood as a probability value between 0 and 1 inolusive.
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Multiply the number by 4. Add 12 to the product. Divide this sum by 2. Subtract 6 from the quotient. 1st number is 3 and the results 2nd number is 6 and the results 3rd number is 8 and the results 4th
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Suppose you begin teaching grade school in your hometown with an annual salary of $57,000. after five years, you receive a raise with a new salary of $71000. find both the absolute and the relative (p

The figure shown in this diagram could be __________. A. a square, if the diagonals are congruent B. a rhombus, if the diagonals are congruent C. a kite, if the diagonals are congruent D. a rectangle,
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The net flow of energy into and out of the earths system is referred to as earths energy budget. Which type of energy is lost to space in the greatest quantities?

Write the integral that produces the same value as the limit as n goes to infinity of the summation from i equals 1 to n of the product of the quantity 2 plus 3 times i over n and 3 over n.

Can someone help me with this? I need to find the points of discontinuity/limits for each of these. I think one point is 4, but I'm not sure about the others.
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The cost of purchasing a lawn mower and trimmer if mower cost $2 more than twice the cost of the trimmer

5. Hailey would like to make a 5 lb coffee mixture that is 60% Sumatra coffee bean blend. She has several pounds of a mixture that is 20% Sumatra beans and another mixture blend with 80% Sumatra beans

Aviva is comparing her age to her sisters’ ages. Kanti is 3 years younger. Aviva’s older sister, Lakshmi is twice as old as Kanti. Which expression correctly completes the table?

Which is the approximate solution to the system y = 0.5x + 3.5 and y = −x + shown on the graph? (–2.7, 2.1) (–2.1, 2.7) (2.1, 2.7) (2.7, 2.1)
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Four turns of a wire are wrapped around a pipe with the length of 16 cm and a circumference of 4.5 cm. What is the length of the wire
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A mother wants to invest $15,000 for her son's future education she invests a portion of the money in a bank certificate of deposit which earns 4% and the remainder in a savings bond that earns 17% if

Please help with this quick geometry 8th grade math question will fan and medal, thanks! If Triangle MNO = triangle NMO, what statement best describes triangle MON?

Merle Fonda opened a new savings account. She deposited $40,000 at 10% compounded semiannually. At the start of the fourth year, Merle deposits an additional $20,000 that's also compounded semiannuall

40% of the students in a school band play brass instruments while 4 students play strings instruments Write an equation that could be used to find how students are in the band if 10 students play bras

Suppose you have 5 dark chocolates and 10 light chocolates in a box. Without looking, how many chocolates would you need to pick out of the box to be sure you get two lights chocolates? Without lookin

What is the missing statement for step 7 in this proof Statement Reason 1. Quadrilateral DEFG is a parallelogram. given 2. definition of a parallelogram 3. Draw and . These line segments are transve
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Which is a counterexample for the conditional statement? If a square has side length s, then the perimeter is less than the area. s = 3 s = 5 s = 7 s = 9

Tina buys a car to travel to college. The car manual gives consumption as7.0litres per 100km. Petrol costs£1.10 per litre.Tina drives a total of 20 miles each day on 5days each week.Tina pays £1.20
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Jack and Jill had 5 pails of water. Each trip up the hill, Jack and Jill obtained 2 more buckets of water. Which of the graphs below represents Jack and Jill's number of pails over time? (5 points)
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Jim Tree borrowed $1,000 at 10 percent for one year. He paid a $45 processing fee and $100 in interest. Thus, the finance charge is $145, the interest plus the application fee. What is the APR for thi