Rearrange x²+y²-4x+6y=-11 I'll tell you an easy way. take the coefficient of x and divide it by -2 and the coefficient of y and divide it by -2 so -4 ÷-2 = 2 6÷-2= -3 (2,-3) is the center of the circle to know the radius √2² + -3² + -11 =√2 The Radius equals √2
Answer:
Step-by-step explanation:
Differentiate:
Substitute into :
Therefore, 68 is the gradient of the tangent line at x=7:
when ,
1) the square root of 64=8
2) The square root of a^4=a^2
3) b^5=b√b
so the first amount simplifies to 8a²b²√b
4) ∛64=4, as 4×4×4=64
5) ∛a^5=a√a²
6)∛b^4=b√b
so...the second amount is equal to 4ab∛a²b
The last one should be correct
Hope this helped :)
Answer: 8 hours
Step-by-step explanation: If a frog can jump 1/4 fourth a mile every hour then it will take 4 hours to complete a mile. But because we are talking a bout 2 miles, you have to double the time. Therefore, the answer is 8 hours