Answer:
Both are correct. Either rule applied first will have the same result. Both rules will be used either way, and the order in which they are applied does not matter as long as they are applied correctly at each step.
Answer:
50 < 40 -5 + p
50 < 35 + p
-35 -35 + p
15 < p
p < 15
At least 15 points.
Step-by-step explanation:
1; 0; and for the last one x^3 x=cubic root of 3
Answer:
Step-by-step explanation:
let the eq. of circle be x²+y²+2gx+2fy+c=0 ...(1)
∵ it passes through (-1,2),(4,2),(-3,4)
∴ (-1)²+2²-2g+4f+c=0
-2g+4f+c=-5 ...(2)
4²+2²+8g+4f+c=0
8g+4f+c=-20 ...(3)
(-3)²+4²-6g+8f+c=0
-6g+8f+c=-25 ...(4)
(3)-(2) gives
10 g=15
2g=3
g=3/2
(3)-(4) gives
14 g-4f=5
14×(3/2)-4f=5
-4f=5-21=-16
f=4
from (2)
-2(3/2)+4×4+c=-5
-3+16+c=-5
c=-5-13
c=-18
so eq. of circle is
x²+y²+2(3/2)x+2(4)y-18=0
x²+y²+3x+8y-18=0
Dana is correct. The sum of the angles in a quadrilateral is 360°, so if 3 of the angles are 90°, the fourth must also be 90°, creating a rectangle or a square.