Answer: B)
Step-by-step explanation: We are given solutions x = -6 and x = 2.
Therefore, factors of the equation would be
x+6 and x-2.
So, the equation would be in form:
(x+6)(x-2)=0
By foil, we get
Combining like terms, we get
Let us check 2nd option now.
Factoring out 2, we get
.
Answer:
The ratio is same for every pair of values.
Step-by-step explanation:
See the given graph.
The graph is a straight line which proves that the Rent in dollars is increasing at a constant rate with respect to time in Days. So, for a fixed change in time in Days, there will be a fixed change in the rent in Dollars.
Therefore, yes the function is proportional and the ratio is same for every pair of values.
Hence, option 1 is correct.
Answer:
Step-by-step explanation:
From the given information:
The null hypothesis and the alternative hypothesis can be computed as:
(i.e. there is no difference between the SAT score for students in both locations)
(i.e. there is a difference between the SAT score for students in both locations)
The test statistics using the students' t-test for the two-samples; we have:
t = 2.06
degree of freedom = ( ) -2
degree of freedom = (45+38) -2
degree of freedom = 81
Using the level of significance of 0.05
Since the test is two-tailed at the degree of freedom 81 and t = 2.06
The p-value = 0.0426
Decision rule: To reject if the p-value is less than the significance level
Conclusion: We reject the , thus, there is no sufficient evidence to conclude that there is a significant difference between the SAT math score for students in Pennsylvania and Ohio.