Answer: x = -1/8
Step-by-step explanation:
Given the equation 9^x+1 - 13(3^x)+4=0
First, open the bracket, multiply 13 by 3
9^x+1 - 39^x+4=0
Combine like terms
9^x - 39^x +4 +1=0
40^x+5=0
Make x the subject
40^x=0 -5
40^x= -5
Divide both sides by 40
40^x/40=-5/40
x = -1/8
I hope this is clear, please mark as brainliest answer.
Answer:
6.9 to the nearest tenth.
Step-by-step explanation:
Use the external tangent - chord theorem:
AP^2 = CP * BP
AP^2 = 12 * 4 = 48
AP = √48
= 6.928
When we find the square root of a number we get 2 options, the positive and the negative one, for example:
Therefore, Ryan made an error in the last step because x is equal to 6 or x is equal to -6:
Answer:
Surface Area = 954.56
Step-by-step explanation:
The formula for Surface Area of a cylinder is 2πr² + 2πrh
Here the equation is (2 * 3.14 * 64) + (2 * 3.14 * 8 * 11) = 954.56
