Answer:
x = 20 units
Step-by-step explanation:
By geometric mean theorem:
Nine months ago Alexa deposited $7,000 in a three-year CD. She has received $224.16 in interest.
1 answer:
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The 6th term of the geometric sequence is of -4096.
<h3>What is a geometric sequence?</h3>A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.
The nth term of a geometric sequence is given by:
In which is the first term.
For this problem, we have that:
- The first term is
.
, hence the common ratio is q = -4.
Thus the 6th term of the sequence is found as follows:
More can be learned about geometric sequences at brainly.com/question/11847927
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Answer:
The pebble will hit the ground 8.29 second after it is thrown.
Step-by-step explanation:
Given that,
The height of the pebble after t seconds is given by the equation
h= -16t²+24 t+900.
When the pebble hit the ground, the height of the pebble will be zero.
So putting h=0 in the given equation.
0 = -16t²+24 t+900
⇒-4(4t²-6t-225)=0
⇒4t²-6t-225=0
Applying quadratic formula , here a=4, b= -6 and c= -225.
⇒ t = 8.29, -6.79
Since time can not negative.
∴t=8.29 seconds.
The pebble will hit the ground 8.29 second after it is thrown.