a Show that 2 x 1 2 x 1 15 can be written as 2(2 x ) (2 x ) 15 b Hence find the value of 2 x c Find the value of x ...

a To show that 2x1 2x1 15 can be written as 22x 2x 15 we can use the distributive ...

a. Show that 2 x+1 2 x-1 = 15 can be written as 2(2 x )

Question:

a. Show that 2^x+1 – 2^x-1 = 15 can be written as 2(2^x) – ½(2^x) = 15.

b. Hence find the value of 2^x.

c. Find the value of x.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Cambridge IGCSE And O Level Additional Mathematics Coursebook

ISBN: 9781108411660

2nd Edition

Authors: Sue Pemberton

See More Books

Question Posted: Aug 25, 2021 01:47 AM

See More Questions

Show that van der Waals equation can be written as a cubic equation in the compressibility factor involving the reduced pressure and reduced temperature as (27 P 27 P2 512 T, (T+1) z2- - 1) z - Z3 ST...
Show that the secular equation (9.82) can be written as
A one-sided confidence interval for p can be written as p < + E or p > - E, where the margin of error E is modified by replacing z/2 with z. If Air Borealis wants to report an on-time performance of...
In Exercises use the Ratio Test to determine the convergence or divergence of the series. 00 n=1 n! n3n
What qualitative information can you get from the magnitude of the equilibrium constant?
Explain the purpose of the worksheet.
(d) Make this change to the mixed model and repeat the analysis. Is the final value of porosity related to its initial value? Does the adjustment for the initial value give any improvement in the...
The R&D division of Jobe Corp. has just developed a chemical for sterilizing the vicious Brazilian killer bees which are invading Mexico and the southern United States. The president of Jobe is...
Beacon Corporation issued a 5 percent stock dividend on 30,000 shares of its $10 par common stock. At the time of the dividend, the market value of the stock was $15 per share. Required a. Compute...
Use the accompanying data of the retail survey to state some examples of interesting hypothesis tests by proposing null and alternative hypotheses. Click the icon to view the retail survey data. If...
Given that log 9 y = x, express in terms of x. a. log y 9, b. log 9 (9y) c. log 3 y, d. log 3 (81y).
Solve. a. log 6 x + log 6 3 = 2 b. lg(5x) lg(x 4) = 1 c. log 2 (x + 4) = 1 + log 2 (x 3) d. log 3 (2x + 3) = 2 + log 3 (2x 5) e. log 5 (10x + 3) log 5 (2x 1) = 2 f. lg(4x + 5) + 2lg2 = 1 +...
A large corporation with monopolistic control in the marketplace has its average daily costs, in dollars, given by The daily demand for x units of its product is given by p=60,000-50x dollars. Find...
Working in the production area of a manufacturing company is right where William feels at home. Several of his family members had worked in similar environments throughout their careers, and he loves...
Use the Nernst equation and reduction potential data from (Petrucci's Appendix D; OpenStax's Table 16.1) to calculate Ecell for the following cell: Al (s) | Al3+ (0.18 M) || Fe+ (0.85 M) | Fe (s)
1.) Describe economic interventions that the federal government used to deal with the COVID shutdown and subsequent inflation. Would you have done anything differently? 2.) Describe three of the...
The goal is to understand the principles of project valuation and capital budgeting in a practical setting, using a combination of fictitious data and real-world examples. Begin by proposing a...
45. The use of realistic predetermined unit costs to facilitate product costing, cost control, cost flow, and inventory valuation is a description of the A. flexible budget concept. B. budgetary...
Refer to the financial statements for Samsung in Appendix A. How much were its cash payments for treasury stock acquisitions for the year ended December 31, 2016?
The Dow Jones Industrial Average reached a high of $ 7801.63 on December 29, 1997. Recall from Example 18.4 that it reached a high of $ 1003 on November 14, 1972. The Consumer Price Index for...
Doubling time is the length of time it takes for a quantity to double in size or value. The number of bacteria in a liquid culture can be modelled as a continuous variable and grows at a rate...
The number of customers, n, of a food shop t months after it opens for the first time can be modelled as a continuous variable. It is suggested that the number of customers increasing at a rate that...
A bottle of water is taken out of a refrigerator. The temperature of the water in the bottle is 4C. The bottle water is taken outside to drink. The air temperature outside is constant at 24C. It is...
Deacon Company is a merchandising company that is preparing a budget for the three - month period ended June 3 0 th . The following information is available Deacon Company Balance Sheet March 3 1...
Mango Company applies overhead based on direct labor costs. For the current year, Mango Company estimated total overhead costs to be $460,000, and direct labor costs to be $230,000. Actual overhead...
Which of the following do we expect to be the horizon growth rate for a company (long term growth rate- say 30-50 years)? A) Inflation B) Industry Average C) Zero D) Market Beta

a. Show that 2 x+1 2 x-1 = 15 can be written as 2(2 x )

Question:

Step by Step Answer:

a To show that 2x1 2x1 15 can be written as 22x 2x 15 we can use the distributive ...View the full answer

Cambridge IGCSE And O Level Additional Mathematics Coursebook

Students also viewed these Business questions