Answer:
Step-by-step explanation:
We'll combine the and the
on the right side.
Now, we'll subtract from both sides.
Divide both sides by .
Ta-da!
Please answer 1, 2, and 3. WILL GIVE BRAINLIEST. WORTH 18 POINTS
2 answers:
9514 1404 393
Answer:
- 7
- -1 2/3
- 4
Step-by-step explanation:
The average rate of change of a function f(x) on interval [a, b] is the slope of the line through points (a, f(a)) and (b, f(b)). The slope formula tells you that is ...
m = (f(b) -f(a))/(b -a)
1) The rate of change in the interval [1, 2] is ...
rate of change = (2³ -1³)/(2 -1) = (8 -1)/1 = 7
__
2) rate of change = ((√4 -8) -(√1 -2))/(4 -1) = (-6-(-1))/3 = -5/3
__
3) rate of change = (11 -(-1))/(5 -2) = 4
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Let x = negative real number ⇒x<0
from the statement above, we can generate an equation:
(x + 5)² = 48
= 
⇒ eliminate the square by getting the square root on both sides
⇒ the perfect square of a real number has one positive real number and a negative real number
transposing 5 to other side, we will arrive at two (2) values for x:
= -5 - 4√3 = -11.928
= -5 + 4√3 = 1.928
Since we are only looking at the negative real number, our answer will be -11.928, also equal to -5 - 4√3.
from the statement above, we can generate an equation:
(x + 5)² = 48
⇒ eliminate the square by getting the square root on both sides
⇒ the perfect square of a real number has one positive real number and a negative real number
transposing 5 to other side, we will arrive at two (2) values for x:
Since we are only looking at the negative real number, our answer will be -11.928, also equal to -5 - 4√3.