Mathematics, 23.07.2019 00:30 najashohatee1234
Stephen evaluated (6.34 x 10^-7)(4.5 x 10^3). his work is shown below. which statements describe his errors? check all that apply. (6.34 x 10^-7)(4.5 x 10^3) (6.34 x 4.5)(10^-7 x 10^3) 28.53 x 10^-4 -28.53 x 10^4 -2.853 x 10^3 a. he changed the sign of the coefficient. a negative exponent does not affect the sign of a coefficient in scientific notation. the sign of the exponent determines the direction the decimal is moved in. b. he rewrote -28.53 x 10^4 incorrectly; 28.53 x 10^4 = 2.853 x 10^5. the exponent is increased to account for the extra place the decimal is moved. c. he did not correctly evaluate the exponent. it should be evaluated as (10^-7 x 10^3) = 10^3 since exponents are evaluated using the same operation as the coefficients. d. he got the wrong value for the coefficients; 28.53 x 10^-4 is not possible. the coefficients in scientific notation are always greater than 1, but less than 10. f. he multiplied the coefficients; he should have added 6.34 and 4.5. the product of powers rule states that coefficients are added. keep in mind that there is multiple answers.
Answers: 1
Mathematics, 21.06.2019 17:30
The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.
Answers: 2
Mathematics, 21.06.2019 17:50
Jace wrote a sentence as an equation. 56 is 14 more than a number. 14+ = 56 which statement best describes jace's work? jace is not correct. the phrase more than suggests using the symbol > and jace did not use that symbol. jace is not correct. he was correct to use addition, but the equation should be 56+ p = 14 jace is not correct. the first number in the sentence is 56, so the equation should start with 56. jace is correct. the phrase more than suggests addition, so jace showed that 14 plus a variable equals 56. o
Answers: 1
Mathematics, 21.06.2019 22:30
Whats are the trickiest steps to do when adding or subtracting rational expressions? how does knowledge of rational numbers u in adding and subtracting rational expressions?
Answers: 2
Mathematics, 22.06.2019 01:30
If a sprinkler waters 1 over 12 of a lawn in 1 over 2 hour, how much time will it take to water the entire lawn? (5 points) 10 hours 6 hours 1 over 6 hour 7 over 12 hour
Answers: 1
Stephen evaluated (6.34 x 10^-7)(4.5 x 10^3). his work is shown below. which statements describe his...
Mathematics, 24.04.2020 23:20
Advanced Placement (AP), 24.04.2020 23:20
Spanish, 24.04.2020 23:20
Mathematics, 24.04.2020 23:20
Social Studies, 24.04.2020 23:20
History, 24.04.2020 23:20
Biology, 24.04.2020 23:20