<span>contraP is to flip and negate the prepositions right?
if A then B, if -B then -A
Can I have Brainlest please?
</span>
Answer:the answer is 30
Step-by-step explanation hope this helped ☺️
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Answer:
3.61 seconds
Step-by-step explanation:
The bird starts 50 feet in the air, so will come down to a height of 40 feet after 3.61 seconds.
We want to solve h = 40.
40 = -16t^2 +55t +50
16t^2 -55t -10 = 0
t = (55 +√(55^2 -4(16)(-10)))/(2(16)) = (55 + √3665)/32 ≈ 3.61060
The bird will be 40 ft above the ground the first time after about 3.61 seconds.
Answer:

Step-by-step explanation:
Let's bring the line in the classical
form

At this point we have the two values
for the slope and
for the intercept
For a question like this you need to find the surface area
The formula is :
b x w x h (base x width x height)
So you multiply 3 1/2 x 6 x 5 1/2 = 22.5
Answers 22.5