Answer:
A. add -15 and 9
Step-by-step explanation:
We follow the PEMDAS rule as the order of operations to evaluate expressions.
P-Parenthesis
E-Exponents
M-Multiplication
D-Division
A-Addition
S-Subtraction
Given expression :
In order to evaluate the expression, the first step would be to do the parenthesis operations which requires to add -15 and 9.
Sure where is the problem
Hello,
x²+6x-7=0
==>x²+2*3x+3²-9-7=0
==>(x+3)²-16=0
Answer D
Answer:
We can find the critical value
And for this case if the confidence increase the critical value increase so then this statement is True
Step-by-step explanation:
For a confidence level given c, we can find the significance level like this:
And with the degrees of freedom given by:
We can find the critical value
And for this case if the confidence increase the critical value increase so then this statement is True
Answer:
0.9542
Step-by-step explanation: