Answer:
bg
Step-by-step explanation:
ghnh
Answer:
Step-by-step explanation:
To determine the distance between any two points, we can use the distance formula. The distance formula is given by:
<em>a</em> is the distance between the points (-2, 3) and (-1, -1). Let (-2, 3) be (<em>x₁, y₁</em>) and let (-1, -1) be (<em>x₂, y₂</em>). Substitute and evaluate:
<em>b</em> is the distance between the points (2, 2) and (-1, -1). Again, we can let (2, 2) be (<em>x₁, y₁</em>) and (-1, -1) be (<em>x₂, y₂</em>). Substitute and evaluate:
Answer:
14.25
Step-by-step explanation:
-9.5x-1.5 = 14.25
You'll have to work out the area under the normal curve that maps to the range 2975-3050. So we have to scale the numbers to the world of the standard normal curve.
Step 1: subtract the mean, so that 0 is our mean. This means the range changes to -25..+50. (can you see that I subtracted 3000?)
Step 2: Divide by the standard deviation 38, so that the new sd becomes 1.
This means our range becomes -0.66 to 1.32.
Now we have values that we can lookup in the standard normal table. This has to happen in two steps. First we lookup the probability for Z < 1.32, then we subtract the probability for Z<-0.66.
0.9066 - 0.2546 = <span>0.652 or 65.2%</span>
I know that number 4 is y=2x+3
I know that number 5 is y=2x-1/2
I know that number 7 is y=2x+1 1/2
I know that number 6 is y=3x+1
That's all that i got for you the others i cant figure out. sorry