Round to the nearest hundreth.
The distance an object falls in 4 seconds is 256 feet.
Given,
The expression 16t² models the distance in feet that an object falls during t seconds after being dropped.
We need to find out what distance will an object fall in 4 seconds.
A function has an input and an output.
Example:
f(x) = x + 1
x = 1
f(1) = 1 + 1 = 2
Input = 1
Output = 2
Find the expression that describes the distance at t seconds.
= 16t²
Find the distance at t = 4.
We have,
= 16t²
= 16 x 4²
= 16 x 16
= 256
Thus the distance an object fall in 4 seconds is 256 feet.
Learn more about finding distance at 2 seconds from a given expression here:
#SPJ2
1. it fell in 2 seconds so plug the "t" with 2
2. 16*4² ⇒ 4² = 16
3. 16*16 = 256
A. 19 B. 17 C. -11 D. 21
The given expression is 5a+5b The given values of a and b are a=-6 ,b=-5
Substituting the values of a and b in the expression we have :
5a+5b= 5(-6)+5(-5)
= -30 -25 ( when a positive and a negative number is multiplied the result is a negative number)
-30-25=-55 (same signs are added)
The answer to the expression 5a+5b when a=-6 anf b=5 is -55.
[The given options are not correct.]
Answer:
your answer is 160 cm2
Step-by-step explanation:
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