Answer:
20 years.
Step-by-step explanation:
We have been given a formula
, which represents the value of an investment A (in dollars) after t years.
Substitute the given values:

Let us solve for k.


Take natural log of both sides:

Using property
, we will get:

We know that
, so

Dividing both sides by 1000, we will get:

Take natural log of both sides:







Divide both sides by
:


Therefore, it will take 20 years for the investment to be $9,000.
Answer:
d
Step-by-step explanation:
thats the answer i did it too
Answer:
Option B.
Step-by-step explanation:
we know that
A <u>r</u><u><em>igid transformation</em></u> is a transformation that does not alter the size or shape of a figure.
The translation is a rigid transformation that produce congruent figures
If two figures are congruent, then its corresponding sides and its corresponding angles are congruent
therefore
The squares are congruent because translations are rigid transformations that preserve the length of the sides of the square
Answer: question 6
4/7*8/10 =
first multiply the numeratores the the denominatos.
4*8=32 so this will be numerator.
7*10=70 this is denominator.
so answer is 32/70
same way question 7 is 28/40
question 8
11/2 *9/4 = 99/8= 12 3/8
question 9
convert to improper
9/5*7/3= 63/15 4 3/15
question 10
21/8*16/7= 336/56= 6/6
Step-by-step explanation: