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Basic Algebra

Mass of methane that would be emitted from a piece of ground

Explain working "lack of units and inappropriate precision" Please present an alternative version which demonstrates the use of mathematical skills Mass of methane held within container = 0.00734kg Internal volume of the container = 0.011 m3 0.00734 -------- 0.011 = 0.667272727 ????? When permafrost melts it r

Radical expressions-word problems

Problem 1: Find the radius of a spherical tank that has a volume of 32pie /3 cubic meters. Problem 2: An investment of $10k is worth $24,780 in 2006. Find the 5 year average annual return. Problem 3: The width of a rectangular gate is 2 meters larger than it's height. The diagonal brace measures Sqrt of 6m... find the wi

Mathematics - Growth and Decay Problems

Growth and decay problems: 1. GRIDDED ANSWER. A new laptop computer cost $2000. The value of the computer decreases overtime. The value V(in dollars) of the computer after t years is given by the function V=2000(0.82) raise to t. What is the decay rate, written as a decimal, of the value of the computer? 2. OPEN-ENDED. T

Several Algebra problems

Please help me solve these problems 1. Solve. Then graph 9x>27 Choose the correct solution a. {x|x|>3} b. {x|x|<3} c. {x|x|&#8804;3} d. {x|x|&#8805;3} 2. Find the indicated outputs for f(x) =4x2 - 4x F (0) = F (-1) = F (2) = 3. Solve by the elimination method. 3x+4y=1 6x+8y=2 4. Solve the following system of eq

Step-wise answer to Inequalities

1. Why does the inequality sign change when both sides are multiplied or divided by a negative number? Does this happen with equations? Why or why not? Write an inequality to be solved with the answer. In your inequality, use both the multiplication and addition properties of inequalities. 2. How do you know if a value is

9.1 108 (See attached file for complete description)

9.1 108 9.2 128. Radius of a sphere. The radius of a sphere........ 132. Top bond fund. An investment of $10,000 in the....... 9.3 114. Area of a triangle. Find the exact area of a triangle..... . 9.5 115. Kepler's third law. According to Kepler's third law of.......... 116. Orbit of Venus. If the averag

Equations with Rational Expressions in the Real World

We encounter rational expressions all the time in the real world, often without even realizing it. Now it's your turn to come up with a real-world example from your work or personal life of using an equation with a rational expression to solve a real-world problem. Please give the example, setup the problem, then solve it,

Mathematics - Algebraic Expressions

Question #41 / 50 Solve for ....... where is a real number. (If there is more than one solution, separate them with commas.) Question #42 / 50 Solve the following equation....... Question #43 / 50 For the following right triangle, find....... Question #44 / 50 Compute the following....... Question #4

Solving Proportion Simplified Radical Forms

Question #31 / 50 Solve the following proportion..... Round your answer to the nearest tenth. Question #32 / 50 On the blueprint of a house, millimeters represents meters. The length of the...... Question #33 / 50 Rewrite the following in simplified radical form....... Question #34 / 50 Simplify.......

Several algebra problems

Question #21 / 50 Factor: . Question #22 / 50 Factor: Question #23 / 50 Factor: . Question #24 / 50 Multiply. Write your answer in lowest terms. Question #25 / 50 Express the following compound fraction in lowest terms: Question #26 / 50 Subtract. Write your an

Square Roots of numbers ending in 25(see attachment)

To find the square of any number with 2 or more digits with 5 as the last digit. 15 ^ 2 = you multiply 1 x the next number (2) + 25 = 225 25^2 = you multiply 2 x the next number (3) + 25 = 625 35^2 = you multiply 3 x the next number (4) + 25 = 1225 ... 95^2 = you multiply 9 x the next number (10) + 25 = 9025 and o

Mathematics - Algebra of Rate Questions

Question #21 / 25 Mary drove 378 miles using 15 gallons of gas. At this rate, how many miles would she drive using 8 gallons of gas? Question #22 / 25 There is a sales tax of $9 on an item that costs $125 before tax. The sales tax on a second item is 20. 55 . How much does the second item cost before tax? Questio

Algebra - (Need assistance on the attachment.) 1. On three consecutive passes a football team gains 9 yards, losses 14 yards, and gains 19 yards. What number represents the total net yardage? 2. Solve by elimination method....... ...

(Need assistance on the attachment.) 1. On three consecutive passes a football team gains 9 yards, losses 14 yards, and gains 19 yards. What number represents the total net yardage? 2. Solve by elimination method....... 3. Find the domain of the function...... 4. g(x)= 3/6-5x What is the domain of the

Algebra

What does an equation have that an expression does not?

Algebra problems

Please see attachment for complete description 94. Area of a painting. A rectangular painting with a width of....... 96. Amount of an investment. The amount of an investmentof P dollars for ...... a) Rewrite this formula by factoring..... b) Find A if $8300 is invested for 3 years..... 5.2 100. Demand for pool

Technique- Application, use factoring to solve problems

See attachment Choose one of the techniques for factoring polynomials ( Application, use factoring to solve problems). I need an explanation on this technique (Application. Use factoring to solve problems, here is an example. 5.2 5. Technique- Application, use factorin

Graphing and finding logarithmic function for given data

In an art class, students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. their scores after time x in months, are give in the following table Time, X (in months) Score, y 1 84.9% 2

Algebra assistance

Need assistance with the attached problems 1. Determine whether the ordered pair is a solution of the inequality (2,23) 8y-9x>2

Subsets of given finite sets

(a) List all subsets of the set {a, b, c, d}. (b) Determine the number of subsets of the set A = {a, b, c, d, e, f}, without writing them down. (c) Determine the number of subsets of the set B = {a, b, c, d, e, f, g, h, i} , without writing them down.

Word problems on linear and quadratic equations

See attachment 114. Diameter of a circle. If the diameter of a circle is 1.3 x10^-12 meters, then what is its radius? 94. Perimeter of a rectangle. The width of a rectangular playground is 2x x- 5 feet, and the length is 3x + 9 feet. Write a polynomial P(x) that represents the perimeter and then evaluate this perime

Inequality - 1. The body mass index, I, can be used to determine an individuals risk for heart disease. An index less than 25 indicates a low risk. The body mass index given by the formula, or model, I = 700W/H2, (H2 means to the second power) where, W= weight in pounds, and H= height, in inches. Francis weighs 181 pounds and stands 74 inches tall. What is his approximate body mass index? Find an inequality describing all weights W that Francis can have and be in the low risk category. 2. Bayside insurance offers two health plans. Under plan A, Giselle would have to pay the first $170 of her medical bill, plus 40% of the rest. Under plan B, Giselle would have to pay the first $240, but only 35% of the rest. For what amount of medical bills will plan B save Giselle money? Assume she has over $240 in bills. 3. In order to receive maximum results from aerobic exercise, one should maintain ones heart rate at a certain level. A 30 year old women with a resting heart rate with 65 beats per minute should keep her heart rate between 140 and 165 beats per minute while exercising. She checks her pulse 10 seconds while exercising. What should the number of beats be? Between ___ and _____ BPM

Assistance with attached problems 1. The body mass index, I, can be used to determine an individuals risk for heart disease. An index less than 25 indicates a low risk. The body mass index given by the formula, or model, I = 700W/H2, (H2 means to the second power) where, W= weight in pounds, and H= height, in inches. Francis