<span>For a system of equations to have infinitely many solutions, the equations have to be lineary dependent, (i.e. one of the equations is a multiple of the other equation). For the given equation to have infinitely many solutions, the second equation have to be a multiple of the first equation.
The first equation can be rewritten as y - 2x = -5
The second equation is the first equation multiplied by 2, i.e. 2(y - 2x= -5) = 2y - 4x = -10
Therefore, the correct answer is -10 (option a).</span>
A) checking
This is because it’s not a savings so it just goes in and out
Answer:116.15
Step-by-step explanation:
The term polynomial comes from the words poly- which means "many" and -nomial meaning "terms". In mathematics, a polynomial is an expression that consists of variables and coefficients wherein it only utilizes addition, subtraction, multiplication and a non-negative integer. In the given options above, the variable expression that is not a polynomial is option C. x^9+y^3.
Answer:
The rejection region is the area under the curve for every value of X below Xc=1.844.
Step-by-step explanation:
We have a test hypothesis and we have to calculate the critical value Xc that delimitates the rejection region, being X the sample mean.
This is a left-tail test, so the value for z is z=-2.327.
The value for
The rejection region is the area under the curve for every value of X below Xc=1.844.