65^2 + 34^2
= 4225 + 1156
= 5381
√5381 = 73.4
answer
73.4 m
To find a perpendicular line you first need to see the equation in slope intercept form. To do that you need to solve for y.
2x - 5y = 20 ---> subtract 2x from both sides
-5y = -2x + 20 ---> divide by -5
y = 2/5x - 4
Now that you have this, note that a perpendicular line has opposite and reciprocal slope. Since the slope in our equation is 2/5, that means the new line will have -5/2 slope. So we use the point given and the slope to find the y intercept.
y = mx + b
-8 = -5/2(7) + b ---> multiply
-8 = -35/2 + b ---> add 35/2 to both sides
19/2 = b
Now use our new slope and new y intercept to write the new equation.
y = -5/2x + 19/2
Answer:
17a²b
Step-by-step explanation:
(7a)(3ab)-4a²b
(21a²b)-4a²b
(21-4)a²b
17a²b
I believe it is LETTER A.
There are 4 spots to be filled and the order matters. When order matters you have to use Permutations (P).
The first spot has a requirement that the number has to be greater than 7. There are only 2 numbers in the set that are greater than 7, 8 & 9.
So for spot 1 you have 2P1.
You have 4 remaining spots to fill and the order still matters so it will be another permutation. Since you cannot use repeats, we only have 9 numbers left to choose from and we are going to fill the 3 slots with these 9 numbers. 9P3
Only choice A has these options
