Answer:
29 ft.
Step-by-step explanation:
Since one dimension of the yard is 20 ft., we multiply that by 2 (20 × 2 = 40) to get both sides of the yard with that dimension. Then, we subtract 98 - 40 = 58. 58 ft. is the total of BOTH of the other two sides, so we divide that by 2 (58 ÷ 2 = 29) to get the final answer.
First you order them from least to greatest.
5, 6, 7, 9, 10, 12, 12
Then you cross off one number from each side until you get to the middle
Medial = 9
It kinda depends on the grade scaling and what percent of your grade test are worth. But I'm guessing it would drop down to a 70% or more.
145. 7 + 8 is 15 carry the 1, 9+4+1 is 14, so 145
Answer:
x-y-3=0
Step-by-step explanation:
Choose two common points on the line of intersection of the planes x − z = 3 and y + 2z = 3:
- 1st point: if x=0, then z=-3 and y=3-2z=3+6=9, so the 1st point is (0,-3,9);
- 2nd point: if x=3, then z=0 and y=3-2z=3-0=3, so the 2nd point is (3,0,3).
The perpendicular plane to the plane x+y-4z=6 is parallel to the vector with coordinates (1,1,-4) (normal vector of the given plane).
Hence, the equation of needed plane is
Thus,
