Answer:
r=9.07 m
Step-by-step explanation:
C=2pi(r)
r=C/2pi
57/2pi
9.07183 m
Answer:
Step-by-step explanation:
Your answer is D. You simply plug in the values of each function into the function itself, and then add them together.
f(5)=36, g(-3)=5
36+5=41
Answer:
![|-4b - 8| + |1 - b^2| + 2b^2 = 27](https://tex.z-dn.net/?f=%7C-4b%20-%208%7C%20%2B%20%7C1%20-%20b%5E2%7C%20%2B%202b%5E2%20%3D%2027)
For ![b = 2](https://tex.z-dn.net/?f=b%20%3D%202)
Step-by-step explanation:
The correct expression is:
![|-4b - 8| + |1 - b^2| + 2b^2](https://tex.z-dn.net/?f=%7C-4b%20-%208%7C%20%2B%20%7C1%20-%20b%5E2%7C%20%2B%202b%5E2)
Required
Evaluate the expression for ![b = 2](https://tex.z-dn.net/?f=b%20%3D%202)
Substitute 2 for b in ![|-4b - 8| + |1 - b^2| + 2b^2](https://tex.z-dn.net/?f=%7C-4b%20-%208%7C%20%2B%20%7C1%20-%20b%5E2%7C%20%2B%202b%5E2)
![|-4(2) - 8| + |1 - (2)^2| + 2(2)^2](https://tex.z-dn.net/?f=%7C-4%282%29%20-%208%7C%20%2B%20%7C1%20-%20%282%29%5E2%7C%20%2B%202%282%29%5E2)
Open all brackets
![|-4*2 - 8| + |1 - 2*2| + 2*2*2](https://tex.z-dn.net/?f=%7C-4%2A2%20-%208%7C%20%2B%20%7C1%20-%202%2A2%7C%20%2B%202%2A2%2A2)
![|-8 - 8| + |1 - 4| + 8](https://tex.z-dn.net/?f=%7C-8%20-%208%7C%20%2B%20%7C1%20-%204%7C%20%2B%208)
Evaluate all expressions in the absolute value brackets
![|-16| + |-3| + 8](https://tex.z-dn.net/?f=%7C-16%7C%20%2B%20%7C-3%7C%20%2B%208)
In absolute values:
![|-a| = a](https://tex.z-dn.net/?f=%7C-a%7C%20%3D%20a)
So, we have:
![16 + 3 + 8](https://tex.z-dn.net/?f=16%20%2B%203%20%2B%208)
![27](https://tex.z-dn.net/?f=27)
Hence:
![|-4b - 8| + |1 - b^2| + 2b^2 = 27](https://tex.z-dn.net/?f=%7C-4b%20-%208%7C%20%2B%20%7C1%20-%20b%5E2%7C%20%2B%202b%5E2%20%3D%2027)
For ![b = 2](https://tex.z-dn.net/?f=b%20%3D%202)
Answer:
take weather
Step-by-step explanation:
the weather yesterday was -9 degrees
today thd weather has increased by 3 degrees
-9+3=-6 it's -6 degrees today