The area of a rectangle is 0.8 square units. The length is 3.2 units and the width is x units.
1 answer:
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Answer:
5 seconds
Step-by-step explanation:
The relationship between "d" and "the ground" is not described. If we assume that "d" is distance above the ground, then the rock will hit the ground when d=0. This gives rise to the quadratic equation ...
-t^2 +4t +5 = 0
-(t -5)(t +1) = 0
t = 5 or t = -1 are solutions. Only the positive solution is useful.
The rock will hit the ground after 5 seconds.
in form of multiplication is
.
<u>Step-by-step explanation:</u>
We know that factors are the numbers that are being multiplied together . As 6532*7 = 45724 .Here 6532 & 7 are the factors and 45724 is product of the factors .
Here , we need to convert to the product of multiplication
a^2-b^2-4b-4 or , :
⇒
We know by identity that ,
⇒
Taking common term out as -4 :
⇒
Therefore , in form of multiplication is
.