Answer:
The answer should be 5 logx + 2 log y
Answer:
A)4.6 yard
Step-by-step explanation:
![x^{2} +10^{2} =11^{2} \\x^{2} =21\\x=\sqrt[2]{21} \\](https://tex.z-dn.net/?f=x%5E%7B2%7D%20%2B10%5E%7B2%7D%20%3D11%5E%7B2%7D%20%5C%5Cx%5E%7B2%7D%20%3D21%5C%5Cx%3D%5Csqrt%5B2%5D%7B21%7D%20%5C%5C)
x≅4.6
Hoped I helped, have a nice day!
The answer is 5% I’m pretty sure. I just subtracted $40-$30 :)
Answer:
Roots are not real
Step-by-step explanation:
To prove : The roots of x^2 +(1-k)x+k-3=0x
2
+(1−k)x+k−3=0 are real for all real values of k ?
Solution :
The roots are real when discriminant is greater than equal to zero.
i.e. b^2-4ac\geq 0b
2
−4ac≥0
The quadratic equation x^2 +(1-k)x+k-3=0x
2
+(1−k)x+k−3=0
Here, a=1, b=1-k and c=k-3
Substitute the values,
We find the discriminant,
D=(1-k)^2-4(1)(k-3)D=(1−k)
2
−4(1)(k−3)
D=1+k^2-2k-4k+12D=1+k
2
−2k−4k+12
D=k^2-6k+13D=k
2
−6k+13
D=(k-(3+2i))(k+(3+2i))D=(k−(3+2i))(k+(3+2i))
For roots to be real, D ≥ 0
But the roots are imaginary therefore the roots of the given equation are not real for any value of k.
Answer: I'm not entirely sure but i think its the last one! How this helps!
Step-by-step explanation:
I followed the information on the graph and the one with a 7.2 circumference had a 22.66 cm diameter!
