Answer:
x=27
Step-by-step explanation:
180-2x-40+180-3x+180-x-50+180-4x = 360
360-2x-40-3x+360-x-50-4x= 360
360-10x-90= 0
10x= 270
x= 27
To find the inverse function, swap x x and y y , and solve the resulting equation for x x . If the initial function is not one-to-one, then there will be more than one inverse. So, swap the variables:
y=−x2−36 y = − x 2 − 36
becomes
x=−y2−36 x = − y 2 − 36 .
Now, solve the equation
x=−y2−36 x = − y 2 − 36 for y y .
y=−x−36‾‾‾‾‾‾‾‾√ y = − x − 36y=−x−36‾‾‾‾‾‾‾‾√ y = − − x − 36
ANSWER y=−x−36‾‾‾‾‾‾‾‾√ y = − x − 36 y=−−x−36‾‾‾‾‾‾‾‾√
Answer:
116 more people
Step-by-step explanation:
Let a, b, c signify the numbers of subscribers who watched 1, 2, and 3 videos, respectively. So we can say that:
a +b +c = 312 this means that there are 312 subscribers, total
a +2b +3c = 740 this means that there were 740 total views
Next, deduct the double the first equation from the second.
(a +2b +3c) -2(a +b +c)
= (740) -2(312)
this will give us: c -a = 740 -624 = 116
Therefore, 116 more people watched all three videos than watched one video.
hope this helps
Answer:
= 0.75
Step-by-step explanation:
-3x-9+15x = 0
12x = 9
x = 3
4
= 0.75
Answer:
The average rate of change of f(x) from x = a to x = a + h is -1
Step-by-step explanation:
Average rate of the function f(x) over [a, b] is given by:
Given the function:
At x=a
f(a) = 3-a
At x = a+h
then;
f(a+h) = 3-(a+h) = 3-a-h
Using the formula for average rate of function:
Substitute the given values we have;
Simplify:
or
Therefore, the average rate of change of f(x) from x = a to x = a + h is, -1
