Answer:
1) Solution (2,-3)
2) Solution (-1, 
)
3) Solution (
)
Step-by-step explanation:
We need to solve equations using elimination
1) 
Let:
Adding both equations:
We get value of x = 2
Now, put value of x into equation 1 to find value of y
So, we get y = -3
Solution (2,-3)
2) 
Let:
Adding both equations
We get: y= -3/2
Now find value of x by putting value of y in eq(1)
We get x = -1
Solution (-1, )
3) 
let:
Add both equations:
We get x = -1/2
Now, put value of x in equation 2
We get y = -5/2
Solution ()
Answer:
Given hypothesis are
H0: A = 0.24
H1: Â ≠ 0.24
Here sample proportion  is used to express hypothesis instead of population proportion p.
The error is sample parameter  used in hypothesis [ It should be population parameter p or π )
Step-by-step explanation:
Answer:
1200feet
Step-by-step explanation:
Given the the road's curve elevation modeled by the equation
y = 0.00005x^2 - 0.06x,
x is the horizontal distance in feet between the points where the road is at sea level and;
y is the elevation
The elevation the road is equal to sea level when y = 0
Substitute y = 0 into the equation and calculate x;
0 = 0.00005x^2 - 0.06x
0.06x = 0.00005x^2
0.06 = 0.00005x
x = 0.06/0.00005
x = 1200 ft
Hence they will place the stop sign at a horizontal distance of 1200feet
Answer:
1. D
2. H
3. D
Step-by-step explanation:
1. It is y=mx+b m is slope and b is Y intercept
2. You make it to be in y=mx+b you find the slope and you find where Y is
3. An easy but tedius way is to go to all and plug in the numbers (x,y) or you can first find the slope with the slope formula
