Answer:
2
Step-by-step explanation:
The rate of change in the closed interval [ a, b ] is
![\frac{f(b)-f(a)}{b-a}](https://tex.z-dn.net/?f=%5Cfrac%7Bf%28b%29-f%28a%29%7D%7Bb-a%7D)
Here [ a, b ] = [ 30, 50 ]
f(b) = f(50) = 100 ← from graph
f(a) = f(30) = 60 ← from graph , thus
average rate of change =
=
= 2
thats one late assignment i wouldn't even do it tbh
Answer:
$175.80
Step-by-step explanation:
As given
![A = \frac{1}{2} * b* h](https://tex.z-dn.net/?f=A%20%3D%20%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20b%2A%20h%20)
Firstly we will multiply both sides by 2.
![2*A = 2* \frac{1}{2} * b * h](https://tex.z-dn.net/?f=2%2AA%20%3D%202%2A%20%20%5Cfrac%7B1%7D%7B2%7D%20%2A%20b%20%2A%20h%20)
![2A = bh](https://tex.z-dn.net/?f=2A%20%3D%20bh)
Now dividing both sides of equation from h.
![\frac{2A}{h} = \frac{bh}{h}](https://tex.z-dn.net/?f=%20%5Cfrac%7B2A%7D%7Bh%7D%20%3D%20%20%5Cfrac%7Bbh%7D%7Bh%7D%20%20)
![\frac{2A}{h} = b](https://tex.z-dn.net/?f=%20%5Cfrac%7B2A%7D%7Bh%7D%20%3D%20b%20)
So b =
Answer:
Let Jody's Age be X
Then Jody's Brother age is: 2x - 3
Total is: (2x - 3) + x = 30
Now we solve for x
2x - 3+ x = 30
3x - 3 = 30
3x = 30 + 3
3x = 33
x = 33/3
x = 11
Therefore the age of Jody's Brother is (2×11) - 3 = 19