Mathematics, 08.02.2021 04:20 AikawaAisyah2080
Select each value of a for which you can solve the system by elimination without multiplying first.
axβ7y=β13
8xβ6y=β2
The options are:
β7
β6
β2
8
42
6
β8
7
Answers: 1
Mathematics, 21.06.2019 20:00
Someone answer asap for ! the boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (Β°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2Β°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a. e = 2b - 212 b. b = 2e - 212 c. e = -2b + 212 d. b = -2e + 212
Answers: 1
Mathematics, 21.06.2019 22:00
(05.03 mc) part a: explain why the x-coordinates of the points where the graphs of the equations y = 4x and y = 2xβ2 intersect are the solutions of the equation 4x = 2xβ2. (4 points) part b: make tables to find the solution to 4x = 2xβ2. take the integer values of x between β3 and 3. (4 points) part c: how can you solve the equation 4x = 2xβ2 graphically? (2 points)
Answers: 1
Mathematics, 22.06.2019 03:00
In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. consider the data set 14, 6, 8, 15, 15. (a) use the defining formula, the computation formula, or a calculator to compute s. (round your answer to one decimal place.) s = 4.28 (b) multiply each data value by 3 to obtain the new data set 42, 18, 24, 45, 45. compute s. (round your answer to one decimal place.) s = 12.83 (c) compare the results of parts (a) and (b). in general, how does the standard deviation change if each data value is multiplied by a constant c? multiplying each data value by the same constant c results in the standard deviation remaining the same. multiplying each data value by the same constant c results in the standard deviation being |c| times as large. multiplying each data value by the same constant c results in the standard deviation increasing by c units. multiplying each data value by the same constant c results in the standard deviation being |c| times smaller. (d) you recorded the weekly distances you bicycled in miles and computed the standard deviation to be s = 3.8 miles. your friend wants to know the standard deviation in kilometers. do you need to redo all the calculations? yes no given 1 mile Γ’β° 1.6 kilometers, what is the standard deviation in kilometers? (enter your answer to two decimal places.)
Answers: 1
Select each value of a for which you can solve the system by elimination without multiplying first.<...
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