Answer:
53
Step-by-step explanation:
8x7=56
56-3=53
Remember pemdas
Parentheses
exponent
multiplication
division
addition
subtraction
Answer:
a-bi
Step-by-step explanation:
If a quadratic equation lx^2+mx+n=0 has one imaginary root as a+bi then the other root is the conjugate of a+bi = a-bi
Because we have l, m and n are real numbers and they are the coefficients.
Sum of roots = a+bi + second root = -m/l
When -m/l is real because the ratio of two real numbers, left side also has to be real.
Since bi is one imaginary term already there other root should have -bi in it so that the sum becomes real.
i.e. other root will be of the form c-bi for some real c.
Now product of roots = (a+bi)(c-bi) = n/l
Since right side is real, left side also must be real.
i.e.imaginary part =0
bi(a-c) =0
Or a =c
i.e. other root c-bi = a-bi
Hence proved.
Answer:
20
Step-by-step explanation:
the length of the hypotenuse of a right triangle can be found using the Pythagorean theorem which states that the square of the length of the hypothesis equal the sum of the square of the length of the other two sides
Answer:
89-198345-19850 that's to the the tenth
it's could possibly be correct it's just how your teacher sees it