if m and n are zeros, then:
We have:
substitute
substitute the value of a to the second equation:
Answer:
Answer:
Look at the attached picture
Step-by-step explanation:
It is given that the center of the circle is (-3.2,2.1) and radius is 4.3.
Given;
Probability of machine A breaking down, P(A) = 2% = 0.02
And, probability of machine B breaking down, P(B) = 2.5% = 0.025
Then, the probability that machines A and B will break down on the same day is;
P(A&B) = P(A)P(B) = P(A)*P(B) = 0.02*0.025 = 0.0005
In percentage form;
P(A&B) = 0.0005*100 = 0.05%
Mr. Jackson invested $800 at 6% per year and $ 2400 at 4 % per year
<h3><u>Solution:</u></h3>
Mr. Jackson invested a sum of money at 6% per year, and 3 times as much at 4% per year.
Let the sum invested be ‘a’ and ‘3a’ at 6% per year and 4 % per year respectively
Also, his annual return totaled $144
We can form following equation on the basis of question:-
a = $800
The amount of money invested at 6% = a = 800
The amount of money invested at 4 % = 3a = 3(800) = 2400
So, the amount of money invested at 6% is $800 and the amount of money invested at 4% is $ 2400
36 divide 4 equals 9 i know because 9 times 4 equals 36
9 + 9 + 9 + 9 = 36