Answer:
e and f
Step-by-step explanation:
I am talking to and idiot on the phone so i am dying of boredom
Answer:
-2m - 10
Step-by-step explanation:
3m - 2(5 + 3m) + m =
3m - 10 - 6m + m =
-2m - 10
Answer:
$53
Step-by-step explanation:
Write an equation:
(3·3.25) + (3·3.75) + (4·5.75) + (4·2.25)
Simplify
9.75 + 11.25 + 23 + 9 = 53
Answer:
The answer to your question is: letter A
Step-by-step explanation:
Rules for using scientific notation:
1.- The number before the decimal point must be between 1 and 10.
2.- Determine the exponent
3.- It must be in decimal format, ( x 10)
A 3.8*10^12 This number is in correct scientific notation.
B 33.8* 10 This number is incorrect, because before the decimal point the number must be between 1 and 10.
C 3.8 *20^8 This number is incorrect because the power must be 10 not 20.
<span>3x''+3x'+7x = 9sin 3t - to begin
then </span>Use the method of undetermined coefficients
Then you need to find <span><span>x′p</span> and <span>x′′p and sub them into equation, that will help you to solve A and B.
</span></span>
And finally you will have this :
<span><span><span>3<span>x′′</span>+3<span>x′</span>+7x=9sin(3t)</span><span>[−27Asin(3t)−27Bcos(3t)]+[9Acos(3t)−9Bsin(3t)]+[7Asin(3t)+7Bcos(3t)]</span><span>=9sin(3t)</span><span>(−20A+9B)sin(3t)+(−20B+9A)cos(3t)=9sin(3t)</span></span></span>