Answer:
1. 2A + 3A
2. 2A - B
3. 2A
4. 2(A-B)
Step-by-step explanation:
When multiplying matrix by a number you just multiply each number in the matrix by whatever you are multiplying. When adding 2 matrices you just add the corresponding number in each matrix. Ex: You add the top left number to the top left number. The same goes with subtraction.
Answer:
$517.50
Step-by-step explanation:
25x20.7
<em>Answer:</em>
<em>Answer:3.33 </em>
<em>Answer:3.33 Step-by-step explanation:</em>
<em>The</em><em> </em><em>answer</em><em> </em><em>is</em><em> </em><em>3.33</em>
<em>2</em><em>/</em><em>3</em><em> × </em><em>5</em><em> = 3.33</em>
A=future amount
P=present amount
r=rate in decimal
t=time in years
so
when will A=double of original?
or when will A=2P
r=3%=0.03
t=t
divide both sides by P
take ln of both sides
ln(2)=0.03t
divide both sides by 0.03
(ln(2))/0.03=t
use calculator
23.1049=t
so a little over 23 years, about 23 years and 38.2 days
