Answer:
-1/2y-3
Step-by-step explanation:
4y-9/2y-3
8/2y-9/2y-3
-1/2y-3
<em>Answer:</em>
a = 7 & a = −7
<em>Explanation:</em>
Rewrite the equation as
(x+a)(x−a)=x^2−49
Simplify (x+a)(x−a)
x^2−a^2=x^2−49
Move all terms not containing a to the right side of the equation.
−a^2=−49
Multiply each term in −a^2=−49 by −1
a^2=49
Take the square root of both sides of the equation to eliminate the exponent on the left side.
a=±√49
The complete solution is the result of both the positive and negative portions of the solution.
a=7,−7
Answer:
D
Step-by-step explanation:
since p is an odd number choice C can't be the answer because 4 is even number
Q is an even number so that choice B can't be answers because 3 is an odd number .
and for A 6 isnot a prime number so that it proves tim is correct.
but when we see D 2 is a prime number so that it shows tim is wrong.
Answer:
Finding the error for each observation, squaring the error and minimizing the sum
Step-by-step explanation:
The regression line is a straight line which gives a description of how the dependent variable y changes as changes occur in the independent variable X. It gives a prediction of the value of Y for any given value of X.
The method of least squares is used for squaring the error and also used for minimising the sum. Therefore, when you calculate the regression line, you would be Finding the error for each observation, squaring the error and minimizing the sum.
