Question 4(multiple choice worth 1 points)
(04.03 mc)

two systems of equations are shown:

system a system b
2x + y = 5 −10x + 19y = −1
−4x + 6y = −2 −4x + 6y = −2

which of the following statements is correct about the two systems of equations?
they will have the same solutions because the first equation of system b is obtained by adding the first equation of system a to 2 times the second equation of system a.
they will have the same solution because the first equation of system b is obtained by adding the first equation of system a to 3 times the second equation of system a.
the value of x for system b will be −5 times the value of x for system a because the coefficient of x in the first equation of system b is −5 times the coefficient of x in the first equation of system a.
the value of x for system a will be equal to the value of y for system b because the first equation of system b is obtained by adding −12 to the first equation of system a and the second equations are identical.

The table shows population statistics for the ages of best actor and best supporting actor winners at an awards ceremony. the distributions of the ages are approximately bell-shaped. compare the z-scores for the actors in the following situation. best actor best supporting actor muequals42.0 muequals49.0 sigmaequals7.3 sigmaequals15 in a particular year, the best actor was 59 years old and the best supporting actor was 45 years old. determine the z-scores for each. best actor: z equals best supporting actor: z equals (round to two decimal places as needed.) interpret the z-scores. the best actor was (more than 2 standard deviations above more than 1 standard deviation above less than 1 standard deviation above less than 2 standard deviations below) the mean, which (is not, is) unusual. the best supporting actor was (less than 1 standard deviation below more than 1 standard deviation above more than 2 standard deviations below more than 1 standard deviation below) the mean, which (is is not) unusual.

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?

Aweekly newspaper charges $72 for each inch in length and one column width. what is the cost of an ad that runs 2 column inches long and 2 columns wide? its not 288