a. 18
b.-(81)^1/2
c.9
d.81^1/2
Answer:
13892 lb-ft/sec^2
Step-by-step explanation:
Given that An auto weighing 2,500 pounds is on a street inclined at 10 with the horizontal.
Here acceleration due to gravity is the pulling factor against which the car should be stopped from rolling down the hill.
Weight of the car =2500 pounds
Vertical component of gravity = 32cos (90-10)=32sin 10 = 32(0.1736)
Force required = mass x acceleration
=2500x0.1736x32
=13892 lb ft/sec^2
For every increase of 1 on the Richter scale, an earthquake is 10 times more powerful. Which of the following models this situation? answer-exponential growth function
b- linear function with a positive rate of change
c-exponential decay function
d-exponential growth function
The model that best describes this situation is an exponentialgrowthfunction.
The correct answer is option D.
A function has an input and an output.
A function can be one-to-one or onto one.
It simply indicated the relationships between the input and the output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
Exponential growth function
The given situation describes how the power of an earthquake increases exponentially with an increase in Richter scale magnitude.
Specifically, for every increase of 1 on the Richter scale, the earthquake is described as being 10 times more powerful.
This is characteristic of exponentialgrowth, where a quantity increases by a fixed proportion for each unit increase in another variable.
In this case,
As the Richter scale magnitude increases by 1, the power of the earthquake increases by a factor of 10, which is an exponentialgrowth relationship.
Therefore,
The model that best describes this situation is an exponentialgrowthfunction.
Learn more about functions here:
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b. 5w + 5w
c. 2(5w + w)
d. 2(5w + 5w)
Answer:
(x-4)(x-3)
Step-by-step explanation:
x^2+12=7x move the 7x to the other side
x^2-7x+12
(x-4)(x-3)