The first and 3rd are rational, the second is irrational
Answer:
y = x - 2
Step-by-step explanation:
Using any two points to find the slope. I will using (3, 1) and (7, 5)
Slope = (change in the y values)/(change in the x values)
Slope = (5 - 1)/(7 - 3) = 4/4 = 1
Next find the y -intercept "b", using the table to find the value of y when x is zero. That point is (0, -2) . So the y-intercept ("b") is -2
or use one of the point (7, 5) and substitute into the slope- intercept formula and solve for "b'
y = mx + b
5 = 1(7) + b
5 = 7 + b
-2 = b
Write the equation in the slope-intercept form y = x - 2
Answer:
0.001665973
Step-by-step explanation:
Answer:
a) -3
b) 117
c) 100
Step-by-step explanation:
(a) 2(1)²-5(1)
1²= 1
2×1= 2
2-5= -3
(b) 2(9)²-5(9)
9²= 81
81×2= 162
162-45= 117
(c) 2(4)²-5(4) +2(8)²-5(4)
4²=16
16×2= 32
32-20= 12
8²=64
64×2= 128
128-40= 88
88+12= 100
hope it helps!
Answer: The answer is 100 to 140 feet.
Step-by-step explanation: Given that we are anchoring our boat and the water is 20 feet deep. We are to calculate the anchor line we should use.
General rule of calculating anchor line is given by
Multiplying the depth of the water by 5 to 7 . For example, if the water depth is 'x' feet, then we will multiply 'x' feet by 5 to 7 to get the amount of anchor line to put out.
Here, the depth of water = 20 feet.
So, the anchor line should be 5 × 20 to 7 × 20 feet, i.e., 100 to 140 feet.
Thus, the anchor line should be 100 to 140 feet.
