There are two ways:
One if you have a graphing calculator (TI-84 plus) you can go to stat then edit then type in the -40 and -90 on the left and the -120 and 60 on the right. The press stat again and go to the right to calc the down to linreg (ax +b) and go down to calculate amd press enter.
Your answer is y = -3.6x+-264
option two is by hand
the formula is y1-y2 divided by x1-x2
Answer:
Multiply by 4, starting from 2.
Answer:
C
Step-by-step explanation:
It's not rational. It can't be represented as a fraction.
It can't be a decimal the ends. If I told you want the hundredth digit was, you could not establish the 101st digit.
If you try to find the square of 7 using the calculator that comes with winds, you get an answer that goes out to 2 followed by the decimal followed by 31 digits. You cannot find a pattern nor can you find an ending.
sqrt(7) is irrational.
Answer:
Supplementary
Step-by-step explanation:
∠ADW = 60 +90 = 150°
∠ADW + ∠YDW = 150 + 30 = 180°
If sum of two angles is 180, then they are supplementary
To know while working with inequality equations:
- When multiplying or dividing by a negative, you want to flip the direction of the inequality sign. < becomes >, etc
- When graphing, if it is only less/greater than (< or >) the dot will be open
- When graphing, if it is less/greater than and equal too (≤ or ≥) the dot will be closed
- Then, if the x value is on the left side, the arrow will go in the direction of the inequality sign
[3] Divide both sides by -4, flip the sign
-4x ≥ -36
x ≤ 9
[4] Divide both sides by -0.4, flip the sign, and then I flipped the equation to make it easy to graph
3 > -0.4x
-7.5 < x
x > -7.5
[5] Divide both sides by -2.2, flip the sign
-2.2x ≤ -6.6
x ≥ 3
[6] Multiply both sides by -8, flip the sign
> 2
x < -16
<em>See attached for the graphs.</em>