Mathematics, 20.10.2020 02:01 vcasela
Erica solved the equation β5x β 25 = 78; her work is shown below. Identify the error and where it was made.
β5x β 25 = 78
Step 1: β5x β 25 β 25 = 78 β 25
Step 2: β5x = 53
Step 3: negative five times x over negative five = fifty-three over negative five
Step 4: x = negative fifty-three over five
Step 1: She should have added 25 to each side.
Step 1: She should have divided both sides by β5.
Step 3: She should have divided both sides by β5.
Step 3: She should have multiplied both sides by β5.
Answers: 2
Mathematics, 21.06.2019 17:00
The magnitude, m, of an earthquake is defined to be m=log l/s, where i is the intensity of the earthquake (measured by the amplitude of the seismograph wave) and s is the intensity of a βstandardβ earthquake, which is barely detectable. what is the magnitude of an earthquake that is 1,000 times more intense than a standard earthquake? use a calculator. round your answer to the nearest tenth.
Answers: 1
Mathematics, 21.06.2019 17:20
What is the reflection image of (5,-3) across the line y = -x?
Answers: 1
Mathematics, 21.06.2019 17:50
Bill works as a waiter and is keeping track of the tips he ears daily. about how much does bill have to earn in tips on sunday if he wants to average $22 a day? tips by day tips (dollars) monday tuesday wednesday thursday friday saturday $14 $22 $28 $36
Answers: 1
Mathematics, 22.06.2019 01:50
Twelve different video games showing substance use were observed and the duration times of game play (in seconds) are listed below. the design of the study justifies the assumption that the sample can be treated as a simple random sample. use the data to construct a 99% confidence interval estimate of ΞΌ, the mean duration of game play. 4028 4316 4816 4650 4036 5010 4833 4331 4307
Answers: 1
Erica solved the equation β5x β 25 = 78; her work is shown below. Identify the error and where it wa...
Mathematics, 01.11.2019 22:31
Mathematics, 01.11.2019 22:31
Physics, 01.11.2019 22:31
Mathematics, 01.11.2019 22:31
Mathematics, 01.11.2019 22:31