A crew is digging a man-made lake. They started in the morning and then had lunch. After the lunch break, the crew dug down another 1.8 feet before heading home. Before they left, the boss said, "If you dig the amount you dug today every day, then it will take you 3.5 days to finish." The bottom of
the lake will have an elevation of —27.3 feet
.
What was the lake's elevation before the lunch break? We don't know, so let's call it b for break elevation.
Which expression represents the elevation of the lake at the end of the first day?
ob- 1.8
o 1.8 - 6
0
Ob + 1.8

7

step-by-step explanation:

9987

step-by-step explanation:

y=sec x is the correct answer

~batmans wife dun dun

let f (x ) is a function and c be a positive real number,   the graph of the function g (x ) = f (cx ) is represented as follows.

when, c > 1,   the function compresses it in the x - direction.

when, 0 < c < 1, the function stretches it.

the function is g ( x ) = (9x )2.

the heighest power of x in g ( x ) = (9x )2 is 2, so the parent function is square function.

the equation of parent function is f ( x ) = x 2 .

the function is g ( x ) = (9x )2 and the parent function is f ( x ) = x 2 .

so, the functions f and g have the following relationship.

g ( x ) = f ( 9x ).

compare the function g ( x ) = f ( 9x ) with g (x ) = f (cx ).

c = 9 ( > 1 ).

so, the function g (x ) = (9x )2 compresses it in the x - direction.

step-by-step explanation: