Question 1

Solve the problem.
-Anne and Nancy use a metal alloy that is 18.6% copper to make jewelry. How many ounces of a 12% alloy must be mixed with a 23% alloy to form 75 ounces of the desired alloy?

Accepted Answer

A)   32 ounces
B)   30 ounces
C)   45 ounces
D)   50 ouncesE) B) and C)
F) A) and D)

Question 2

Fill in the blanks to complete the statement.
-The graph of  y=−x+7y = - \sqrt { x + 7 }y=−x+7​  can be obtained from the graph of  y=xy = \sqrt { x }y=x​  by shifting horizontally  ???  units to the  ???  and reflecting across the ?-axis.

Accepted Answer

A)   7 ; right:  xxx 
B)    7;7 ;7;  left;  xxx 
C)   7 ; left:  yyy 
D)    −7;- 7 ;−7;  left;  xxxE) B) and C)
F) All of the above

Exam 1: Functions and Graphs

Fill in the blanks to complete the statement. -The graph of $y = - \sqrt { x + 7 }$ can be obtained from the graph of $y = \sqrt { x }$ by shifting horizontally $?$ units to the $?$ and reflecting across the ?-axis.

Correct Answer
verified

Solve the problem. -Anne and Nancy use a metal alloy that is 18.6% copper to make jewelry. How many ounces of a 12% alloy must be mixed with a 23% alloy to form 75 ounces of the desired alloy?

Correct Answer
verified

Exam 1: Functions and Graphs

Fill in the blanks to complete the statement. -The graph of y=−x+7y = - \sqrt { x + 7 }y=−x+7​ can be obtained from the graph of y=xy = \sqrt { x }y=x​ by shifting horizontally ??? units to the ??? and reflecting across the ?-axis.

Correct AnswerverifiedShow Answer

Solve the problem. -Anne and Nancy use a metal alloy that is 18.6% copper to make jewelry. How many ounces of a 12% alloy must be mixed with a 23% alloy to form 75 ounces of the desired alloy?

Correct AnswerverifiedShow Answer

Fill in the blanks to complete the statement. -The graph of $y = - \sqrt { x + 7 }$ can be obtained from the graph of $y = \sqrt { x }$ by shifting horizontally $?$ units to the $?$ and reflecting across the ?-axis.

Correct Answer
verified

Correct Answer
verified