Answer: 166.32
Step-by-step explanation: multiply 18 by 9 first. (162) then multiply the decimal numbers. Then at that to the previous product.
D.The answer should be about $10,000.The students answer is not correct.
Answer:
What is the variance? 84000
What is the standard deviation, rounded to the nearest whole number? 290
5 stars if this helped
Step-by-step explanation:
Answer:

Step-by-step explanation:
y′′ + 4y′ − 21y = 0
The auxiliary equation is given by
m² + 4m - 21 = 0
We solve this using the quadratic formula. So

So, the solution of the equation is

where m₁ = 3 and m₂ = -7.
So,

Also,

Since y(1) = 1 and y'(1) = 0, we substitute them into the equations above. So,


Substituting A into (1) above, we have

Substituting B into A, we have

Substituting A and B into y, we have

So the solution to the differential equation is

Removing parentheses.
Subtract 0.02m from -0.1m to get -0.12m
Answer -
".02mn-0.12m-0.2"