Answer:
x equal 104
Step-by-step explanation:
since 8 needs to go into something 13 times we can multiply
8 x 13 to get
104
104 divided by 8
equals 13
Find the area of the shaded rectangle and then the second. Subtract them from eachither giving you the proper area of the shade grey rectangle
Answer:
x = 4.167
Step-by-step explanation:
8x - 14 = 2x + 11 add 14 to 14
8x = 2x + 25 subtract 2x to 2x and 8x
6x = 25 divide by 6
x= 4.167 repeating
Answer:
x³ − x² + 9x − 9 = 0
Step-by-step explanation:
Imaginary roots come in conjugate pairs. So if 3i is a root, then -3i is also a root.
(x − 1) (x − 3i) (x − (-3i)) = 0
(x − 1) (x − 3i) (x + 3i) = 0
(x − 1) (x² − 9i²) = 0
(x − 1) (x² + 9) = 0
x (x² + 9) − (x² + 9) = 0
x³ + 9x − x² − 9 = 0
x³ − x² + 9x − 9 = 0
