Answer:
option B
Step-by-step explanation:
the slope is -2, so the equation must have -2x in it.
This narrows it down to option C and B
the intercept is at -5, not +5 so the correct answer is y = -2x - 5
Answer:
The number of cans of paint he used for each wall is cans
Step-by-step explanation:
Here we are told that Sam used 17 cans of paint to paint 6 walls
The correct way to find out how many cans of paint he used to paint each wall is as follows
Number of walls 17 cans of paint can paint = 6 Walls, we therefore divide both side of the equation by 6 so that the number of walls painted will be 1 as follows
6 Walls = Number of walls 17 cans of paint can paint
6/6 Walls = Number of walls 17/6 cans of paint can paint
∴ 1 Walls = Number of walls 17/6 cans of paint can paint or
∴ 1 Wall = Number of walls cans of paint can paint
Which gives;
Number of walls cans of paint can paint = 1 Wall or
The number of cans of paint he used for each wall = cans.
Answer:
Step-by-step explanation:
we know that
The exponential function is of the form
where
y ---> the number of trucks
t ----> is the time in years
a ---> is the initial value (number of trucks for t=0)
b is the base
r is the rate
b=(1+r)
In this problem we have
substitute
we have the point (1,110)
For t=1 year, y=110 trucks
substitute
solve for b
The rate of growth is
the exponential equation is equal to
<u><em>Verify for the third point of the table</em></u>
For t=2 years
---->is correct
Answer:
The plane travels at a speed of approximately 262.768 miles per hour.
Step-by-step explanation:
The absolute velocity of the plane () is the vectorial sum of vectors from engines () and wind flow (). All vectors are measured in miles per hour. That is:
(1)
Let suppose that both north and east semiaxes are positive.
If we know that and , then the resultant velocity of the plane is:
The resultant speed of the plane is determined by Pythagorean Theorem:
The plane travels at a speed of approximately 262.768 miles per hour.