In general, extraneous solutions arise<span> when we perform non-invertible operations on both sides of an </span>equation<span>. (That is, they sometimes </span>arise, but not always.) ... Solvingequations<span> involving square roots involves squaring both sides of an</span>equation<span>. I hope that this helps you out, Have a wonderful day!!</span>
Answer:
1. 81
2. 4 (square root of) 25^3
3. 30 (square root of) 10
x + y = 24 where x and y are the 2 parts of diagonal Other diagonal wil be smaller that 24.
x^2 + z^2 = 13^2
y^2 + z^2 = 20^2 where z = 0.5 * length of smaller diagonal)
form last 2 equations
y^2 - x^2 = 20^2 - 13^2 = 231
now y = 24-x so we have
(24 - x)^2 - x^2 = 231
576 - 48x = 231
48x = 345
x = 7.1875
z^2 = 13^2 - 7.1875^2 = 117.34
z = 1.83
so smaller diagonal = 21.66 cm
looks like its the third choice.
Answer:
-275
Step-by-step explanation:
It's asap so no explanation
Answer:
B and C
Explanation:
Coordinates of A: (5,-5), which is in the 4th quadrant.
Coordinates of B: (-12,9), which is in the 2nd quadrant.
Coordinates of C: (-3,2), which is in the 2nd quadrant.
Coordinates of D: (2,-7), which is in the 4th quadrant.
