The correct answer is 1. Hope this helps!!
Answer:
a is perpendicular to both b and c; the product of the slopes a and b or a and c is -1
Step-by-step explanation:
perpendicular slopes multiplied by each other would be -1
-1/3 * 3 for a and both other lines is -1
that means a is perpendicular to both b and c
Complete Question
The complete question is shown on the first uploaded image
Answer:
The confidence level interval is 
Step-by-step explanation:
The sample size is 
The number planning to increase workforce is 
The confidence level is
%
The value of proportion for a plus 4 method is

substituting values


The z-critical value at confidence level of 98% is

This values is obtained from the standard normal table
The confidence level interval can be mathematically represented as

substituting values


=> 
Answer:
So the bigger array is 12 and 25
Step-by-step explanation:
Let's do a multiplication of this array first and Know it's result.
3 times five and 4 times 5. = (3*5) and (4*5)
= 15 and 20
Multiplying further gives us
= 15 * 20=300.
So to combine to get the bigger array.
We must get back 300 as the result of our product.
Let's multiply the row(x) with the row(x)
And the column (y) with column(y)
3 times five and 4 times 5.= 3*4 and 5*5
So the bigger array is 12 and 25
To check.
12*25 = 300
Proved.
Answer:
slope equals the change in x over the change in y. So slope equal negative 1.