Answer:
$270
Step-by-step explanation:
Answer:
a) Option A is correct.
b) Option C is correct.
Step-by-step explanation:
a) Which of the following is the equation of the line passing through the points (1, 1) and (-3,5)?
We will use the equation
(y-y₁)=m(x-x₁)
m= (y₂-y₁)/(x₂-x₁)
m= (5-1)/(-3-1)
m= 4/-4
m= -1
Consider point (1,1) and Putting value of m
(y-y₁)=m(x-x₁)
(y-1)=1(x-1)
y-1=x-1
y=x-1+1
y=x
So, Option A is correct.
b) Which of the following is the equation of a line with a slope of 0 passing through (2,5)?
The formula used is:
y= mx+b
Finding b:
5=0(2)+b
=> b = 5
So, equation is:
y = mx+b
y=0x+5
y=5
So, Option C is correct.
Answer:
Step-by-step explanation:
Given
--- rate of hard disk drives failure
--- number of hard disk drives
<em>See comment for complete question</em>
Required
First, calculate the probability that the none of the 4 selected is working;
Using the complement rule, the probability that at least 1 is working is:
This gives:
Answer:
32a-18
Step-by-step explanation:
add together the side lengths:
10a-1+6a-8+10a-1+6a-8=(10+6+10+6)a+(-1-8-1-8)= 32a-18
There will be 1045 homes in the town by the year of 2000.
<u>Step-by-step explanation:</u>
From the question, it can be determined that
The equation given is y = 84x + 625.
<u>The variables x and y are represented as :</u>
- x is the number of years since 1995.
- y is the total number of homes in the town.
Now, we need to predict the number of homes in the town in the year 2000.
We know that, x is the number of years since 1995 to 2000.
∴ The value of x = No.of years from 1995 to 2000
⇒ x = 5 years
<u>To calculate the y value :</u>
Substitute x=5 in the given equation.
⇒ y = 84(5) + 625
⇒ y = 1045 homes.
∴ There will be 1045 homes in the town by the year of 2000.
