Answer:
domain: (-∞ , ∞)
range: (-∞, 2]
Step-by-step explanation:
the domain is the set of values of what the x value can be. This function is parabolic and upside down, it can have a range of x values from - infinity to positive infinity. The function is most likely y=-x^2 +2
range is the output (y values) the function can possibly have. the max is 2 and includes 2 so we use bracket for that. The smallest y value can reach towards negative infinity.
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Answer:
19km
Step-by-step explanation:
190km divided by 10hr = 19km per 1hr
Answer:
11
Step-by-step explanation:
9+9+11+15 = 44
44/4 = 11!
Kelsey must spend less than or equal to $65.
The expression 5.50b+7.5 is correct
Kelsey able to purchase 10 books.
On the end Kelsey can spend $2.50 to purchase small present (calendar or book for notes)
by pythagorean formula, the last side is √(61)
by cos rule
cos A
A = 39.81
