Answer:
-71/4
Step-by-step explanation:
Answer:
neither they are the same as each other...
X^4 - 5x^2 - 36 = 0
(x^2 - 9)(x^2 + 4) = 0 - factor the left side
(x + 3)(x - 3)(x^2 + 4) = 0 - factor (x^2 - 9 as difference of squares)
x + 3 = 0 x - 3 = 0 x^2 + 4 = 0 Set each factor to 0 if any 0 the left side 0
x = -3 x = 3 x^2 = -4
x = 2i or -2i
The roots are 3, -3, 2i, -2i (Don't know if you need the imaginary roots but I gave you them anyway)
Answer:
Step-by-step explanation:
According to angle bisector theorem we get the following ratio:
Substitute the lengths and solve for x:
- 77/87.5 = 22/(x - 22)
- 77(x - 22) = 87.5*22
- 77x - 77*22 = 1925
- 77x = 1925 + 1694
- 77x = 3619
- x = 3619/77
- x = 47
Answer:
2.8×105
Step-by-step explanation:
(8.2 x 105) – (5.4 x 105)
=(861)-(567)
=294
•2.8×105=294
Therefore the answer is 2.8×105
