Answer:
x=-19
y=55
Step-by-step explanation:
y=-3x-2.
5x+2y=15
substitute y into 5x+2y =15
5x +2 (-3x-2) = 15
distribute
5x -6x-4 = 15
combine like terms
-x-4 =15
add 4 to each side
-x-4+4 = 15+4
-x=19
multiply by -1
x = -19
now lets find y
y= -3x-2
y = -3(-19) -2
y = 57-2
y =55
Y equals 48 because it’s a rise of 1 over 4
Answer:
Kindly check explanation
Step-by-step explanation:
Given :
Sample size, n = 30
Tcritical value = 2.045
Null hypothesis :
H0: μ = 9.08
Alternative hypothesis :
H1: μ≠ 9.08
Sample mean, m = 8.25
Samole standard deviation, s = 1.67
Test statistic : (m - μ) ÷ s/sqrt(n)
Test statistic : (8.25 - 9.08) ÷ 1.67/sqrt(30)
Test statistic : - 0.83 ÷ 0.3048988
Test statistic : - 2.722
Tstatistic = - 2.722
Decision region :
Reject Null ; if
Tstatistic < Tcritical
Tcritical : - 2.045
-2.722 < - 2.045 ; We reject the Null
Using the α - level (confidence interval) 0.05
The Pvalue for the data from Tstatistic calculator:
df = n - 1 =. 30 - 1 = 29
Pvalue = 0.0108
Reject H0 if :
Pvalue < α
0.0108 < 0.05 ; Hence, we reject the Null
The first one is 4 and the second one is -3 because that’s where the line intersect the y axis in the coordinate graph.
Answer:
V = -0.5
Step-by-step explanation:
V is equal to:
2 + (-5 * 0.5)
2 + -2.5
-0.5
