Answer:
Step-by-step explanation:
1) Subtract 40 from both sides.
2) Simplify -16 - 40 to -56.
3) Divide both sides by -8.
4) Two negative numbers makes a positive.
5) Simplify 56/8 to to 7.
<em><u>Therefor</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>option</u></em><em><u> </u></em><em><u>B</u></em><em><u>.</u></em><em><u> </u></em><em><u>x</u></em><em><u> </u></em><em><u><</u></em><em><u> </u></em><em><u>7</u></em><em><u>.</u></em>
Answer:
Multiplying a complex number by a real number
(x + yi) u = xu + yu i. In other words, you just multiply both parts of the complex number by the real number. For example, 2 times 3 + i is just 6 + 2i. Geometrically, when you double a complex number, just double the distance from the origin, 0.
binomial methods
Complex numbers use binomial methods of multiplication because unlike real numbers, imaginary numbers have two components.
So probably A. I sorry, but I need more information. Hope this helps
Step-by-step explanation:
Answer:
The area of the nonagon is 270cm²
Step-by-step explanation:
The area of a regular polygon is given by
where 'a' is the apothem and 'p' is the perimeter.
The apothem is a=6cm.
The perimeter is p=9×10=90cm.
We substitute the apothem and the perimeter to get:
Plug the values (x,y)=(0,0) into the inequalities:
0 isn't greater than 0, no (0,0) is not a solution to either of these inequalities.
The answer is D.
Answer:
Step-by-step explanation:
Rule for 180 rotation: (x,y) becomes (-x,-y)
So (6,-9) becomes (-6,9)
