a. Use algebra to solve (x 1)(x + 2) = 18. b. Hence, or otherwise, find
Question:
a. Use algebra to solve (x − 1)(x + 2) = 18.
b. Hence, or otherwise, find the set of values of x for which (x − 1)(x + 2) > 18. Give your answer in set notation.
Fantastic news! We've Found the answer you've been seeking!
Step by Step Answer:
Answer rating: 55% (9 reviews)
a To solve the equation x 1x 2 18 we can start by expanding the expression x 1x 2 18 x2 x 2 18 Now w...View the full answer
Answered By
Surendar Kumaradevan
I have worked with both teachers and students to offer specialized help with everything from grammar and vocabulary to challenging problem-solving in a range of academic disciplines. For each student's specific needs, I can offer explanations, examples, and practice tasks that will help them better understand complex ideas and develop their skills.
I employ a range of techniques and resources in my engaged, interesting tutoring sessions to keep students motivated and on task. I have the tools necessary to offer students the support and direction they require in order to achieve, whether they need assistance with their homework, test preparation, or simply want to hone their skills in a particular subject area.
0.00
0 Reviews
10+ Question Solved
Related Book For
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
Question Posted:
Students also viewed these Mathematics questions
-
A contractor has the following historical costs, expressed in $106, for the last 4 years: Cp (Cost of Production) Co (Office overhead) Cj (Job overhead) $240 m $12 m $7.0 m $320 m $14 m $5.6 m $280 m...
-
a. Find the set of values of x for which 4x 2 + 19x - 5 0. b. i. Express x 2 + 8x - 9 in the form (x + a) 2 + b. where a and b are integers. ii. Use your answer to part i to find the greatest value...
-
A mortgage pool is worth $10 million. Each mortgage has interest rate of 6%, term of 30 years and monthly payments based on full amortization. Mortgage servicing fee is an annual 1.2% of the mortgage...
-
Interpret the graph COVID-19 LITERACY SCALE 90 80 70 60 666 6 50 40 30 20 10 01 02 Q3 04 Q5 06 07 Q8 a9 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Science Non-Science Figure 1. COVID-19 LITERARY SCALE
-
Suppose The Washington Post Company (WPO) has no debt and an equity cost of capital of 9.2%. The average debt-to-value ratio for the publishing industry is 13%. What would its cost of equity be if it...
-
1. Suppose that a test for hepatitis has a sensitivity of 95% and a specificity of 90%. A person is selected at random from a large population, of which .05% of the people have hepatitis, and given...
-
A European recession and the U.S. economy a. In 2014, European Union spending on U.S. goods accounted for \(18 \%\) of U.S. exports (see Table 17-2), and U.S. exports amounted to \(15 \%\) of U.S....
-
The Polishing Department of Harbin Company has the following production and manufacturing cost data for September. Materials are entered at the beginning of the process. Production: Beginning...
-
What do you mean by Hardware Software Interface? Give a concrete example. Define the two principle integrity rules for the relational model. Discuss why it is desirable to enforce these rules.
-
Name the fallacy in each statement below and explain why it is fallacious. 1. The best restaurant in New York city is either buddy's bistro or clyde's emporium. 2. Everyone is going to buddy's...
-
Find the values of k for which kx 2 + 8x + 5 = 0 has real roots.
-
Find the set of values of x for which (x 1)(x 4) < 2(x 4).
-
What was Sally able to achieve by holding a wake for the canceled project?
-
First Co. issued 11-year bonds 1 year ago at a coupon rate of 8.5%. The bond makes semi- annual payments. If the required rate of return of an investor on these bonds is 9%, what will the bond sell...
-
Shown to the right are speed- time graphs for two carts that were involved in a collision similar to what you observed in Experiment 2 of this activity. (To remind you, you gave the "launched cart" a...
-
Explain the steps authitor can take to protect themselves against failure to detect fraud.
-
Harold is a commercial lines underwriting manager with Insurance Company (IC). Selina, a top-notch member of Harold's underwriting unit, is married to Martin, an insurance producer at a brokerage...
-
The federal return provides for a business credit called the Qualified Business Income Deduction (QBID). Does CA conform to this credit and if not, what do you do?
-
Dr. Carol Harris, CPA, is a single taxpayer and she lives at 674 Yankee Street, Durham, NC 27409. Her Social Security number is 793-52-4335. Carol is an Associate Professor of Accounting at a local...
-
Construct a 4 x 25 design confounded in two blocks of 16 observations each. Outline the analysis of variance for this design.
-
Convert the following angles to radians, giving your answers to 3 significant figures. a. 50 b. 75 c. 100 d. 160 e. 230 f. 320
-
The points A and B lie on the circumference of a circle with centre O and radius 8.5 cm. The point C lies on the major arc AB. Given that ACB = 0.4 radians, calculate the length of the minor arc AB.
-
The chord AB of a circle, centre O and radius 10 cm, has length 18.65 cm and subtends an angle of radians at O. a. Show that = 0.739 radians (to 3 significant figures). b. Find the area of the...
-
The standard output of production EXE is 25 units per hour in a manufacturing department of a company employing 100 workers. The standard wage rate per labour hour is Rs.6. In a 42 hours week, the...
-
Sale of product amounts to 200 units per month at Rs. 10 per unit. Fixed overhead is Rs. 400 per month and Variable Cost is Rs. 6 per unit. There is a proposal to reduce the Selling Price by 10%....
-
janey paurchased macinery on april 8th of the current year. the relevant costs for the year are as follows: machinery for 10000, 800 shipping, 50 for delivering insurance, 500 for instalation,750 for...
Study smarter with the SolutionInn App