First Answer. 6x-2y=16. This added to 4x-5y=2 is equal to 10x-7y=18
Answer:
y = -1/2x + -3
Step-by-step explanation:
it would take too long to explain
i'm 99.99% sure this is right
Answer:
thousandth?
Step-by-step explanation:
Answer:
H0 : μ = 18000
H1 : μ < 18000 - - - > Claim
Test value = - 3.578
Critical value = ±2.58
There is significant evidence to accept the claim that mean debt at graduation is less than $18000
Step-by-step explanation:
H0 : μ = 18000
H1 : μ < 18000
From the data:
Sample size, n = 30
Sample mean, x = 16298.37
The test statistic :
(16298.37 - 18000) ÷ (2605/sqrt(30))
−1701.63 / 475.60575
= - 3.578
The critical value :
Using the standard normal table;
Critical value at α = 0.01
Critical value = ±2.58
Decison region :
|test statistic | > |Critical value | ; reject H0
|3.578| > |2.58| ; We reject H0 and conclude that Mean debt at graduation is less than $18000
Answer:
Step-by-step explanation:
Use circle equation and plug in the center and radius.
