Answer:
The smaller number is -9.
Step-by-step explanation:
Let <em>x</em> and <em>y</em> be the two unknown numbers.
Their sum is -5. Hence:
Their difference is 13. Hence:
This yields a system of equations. We can solve this using elimination. Adding the two equations together:
Simplify:
Divide both sides by two. Thus:
Using either equation (I'll use the first):
So, our two numbers are 4 and -9.
The smaller number is -9.
Answer:
10x4=40
Step-by-step explanation:
se calcula multiplicado la base por la altura luego de haber multiplicado esto (10 x 4) el resultado es 40
Answer:
a) 142506
b) 61776
c) 0.4333
Step-by-step explanation:
Given
Three microchips in a production run of thirty are defective
The probability of having a defective microchips is 3/30 = 0.1
Probability of having a good microchip is 0.9
a) Possible ways of selecting five sample =
30C5
30*29*28*27*26*25!/25! *5! = 17100720/120 = 142506
b) With one defective microchip
Total sample – sample without any defective microchip
142506 – 37C5
142506 – 80730
61776
c) Probability = 61776/142506 = 0.4333
Part A - 1500x.12=800-25
Part B - 420 bees and 650 plants
Part C - 4 months