Answer:
five degrees:)
Step-by-step explanation:
2 hours= -10
1 hour= half of ten
so you could say -5 or that it drops by five degrees every hour.
hope this helps!
Answer:
k = 575
Step-by-step explanation:
let d be distance and h time.
Given d varies directly as h then the equation relating them is
d = kh ← k is the constant of variation
To find k use the condition d = 2875, h = 5, then
2875 = 5k ( divide both sides by 5 )
k = 575
Answer:
7 cans
Step-by-step explanation:
21 cans = 3 rooms
? cans = 1 room
To get the answer, you have to divide 21 by 3,
which is 7.
Hope this helps!!
Plz let me know if I'm wrong...
Answer:
x² - 9
Step-by-step explanation:
(x + 3)(x - 3)
= x(x - 3) + 3(x - 3) Distributive property
= x² - 3x + 3x - 9
= x² +( -3x + 3x) - 9 Associative
= x² + 0x - 9 Addition
= x² - 9
