Answer:
?
Step-by-step explanation:
dont ask skool questions man
Answer:
B
Step-by-step explanation:
Subtract 20 from both sides:

Divide both sides by -1:

Square both sides:

Subtract 9 by both sides:

Divide both sides by -8:

That means that either a or b is correct and since 9/8 is positive that means it needs to bee less than 9/8 so the correct answer is B
Answer:
400 ft
Step-by-step explanation:
h(t)= -16t^2 + 160t
The vertex is found at
h = -b/2a where b is the coefficient of t and a is the coefficient of t^2
= -160/(2*-16)
-160/-32
5
The time where the maximum occurs is at t=5
To find the maximum substitute into the function
h(5) = -16 (5)^2 +160*5
= -16*25 +800
=-400+800
= 400
The maximum height is 400 ft
Answer:
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Option B is the correct option.
Step-by-step explanation:

Apply cross product property
⇒
Distribute 5 through the parentheses
⇒
Multiply the numbers
⇒
Move 5 to right hand side and change it's sign
⇒
Add the numbers
⇒
Divide both sides of the equation by 5
⇒
⇒
Hope I helped!
Best regards!!
Answer:
Area = 6647.610055 cm^2
Circumference = 289.02652413 cm
Step-by-step explanation:
Area of Circle: Area = π*r^2
Circumference: C = 2*π*r or π*d
Area = π * 46^2 = 6647.610055
Circumference = 2*π*46 = 289.02652413