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Answer:
A) slope = 20.
B) The slope of 20 dollars per hour means that for every hour, the price of the service call increases by 20 dollars (or you could say the price of the service call is 20 dollars every hour, both work.)
Step-by-step explanation:
Recall that slope is y2 - y1 / x2 - x1.
Excellent. We are provided with two points: (1, 60) and (3, 100). Let’s enter this into our formula.
Slope = (100 - 60) / (3 - 1) = 40 / 2 = 20.
Now, to determine what the slope means, we can look at the axis titles on the graph. The x axis title is hours, or time in hours. The y axis title is price of the service call in dollars. Therefore, the slope is price (in dollars) per time (in hours).
This can be restated as: The slope of 20 dollars per hour means that for every hour, the price of the service call increases by 20 dollars (or you could say the price of the service call is 20 dollars every hour, both work.)
Hope this helps!
Answer:
f(10)=40960 people
Step-by-step explanation:
The number of people who have heard the rumour doubles every day.
If on the first day, 80 people have heard,
On the Second day, 160 persons would have heard.
This is an example of an exponential sequence whose growth ratio is 2.
The nth term of an exponential sequence is derived using the formula:
Where:
a=first term
r=growth ratio.
In this case, a=80, r=2
Therefore:
At any time t, the number who would have heard the rumor is:
(b)In 10 days,
=40960
In 20 days, 40960 persons would have heard the rumor.
Answer:
C: A confidence level is the probability that something will fall within a confidence interval.
Have a good day!
Lets get started :)
x² - 7x + 10
We are going to find something in this form:
↓
( )( )
x² is nothing but x multiplied by itself
↓
(x )(x )
-7x + 10 follows
since the sum is negative and the product is positive then the signs inside the bracket will be as follows
↓
( x - )( x - )
-7x should be the sum and 10 should be the product
multiples of 10 = 1 x 10 = 2 x 5 = -1 x -10 =
-2 x -5 ↓ ↓ ↓ ↓
1 + 10 = 11 2 + 5 = 7 -1 - 10 = -11 =
-2 -5 = -7
So the sum of -2 and -5 is -7 and the product of -2 and -5 is 10
↓
( x - 2 )( x - 5 )
Your final answer will be
option B