The height of the kite is 4.89 feet
Explanation
The length of the line attached to the kite=7 feet
The length of the shadow that is cast on the ground=5 feet
the system forms a right angled triangle where the taught string of the kite is the hypotenuse, the shadow is the base and the height of the kite above the ground is the height.
H=7 feet
b=5 feet
using pythagoras theorem
The kite is 4.89 feet above the ground
The first, third, and sixth are correct.
Answer: 693 years
Step-by-step explanation:
Expression for rate law for first order kinetics is given by:
k = rate constant
t = time taken for decomposition = 1
= Initial amount of the reactant
= amount of the reactant left =
for half life :
Putting in the values , we get
Thus half life of this isotope, to the nearest year is 693.
Answer:
9/16
Step-by-step explanation:
Derivative rule:
Here, n=-1, so
Evaluating this at x=-4 gives 9/16
Answer:
I think d is the answer......