Answer:
-21
Step-by-step explanation:
- * + = -
- * - = +
+ * + = +
Here + * - = -
7* 3 = 21 and sign is -ve
Answer: M = 
Step-by-step explanation:
M (x + y) + 4y = x + 2y (Multiply 
in both sides)
M (x + y) = x + 2y - 4y
M (x + y) = x - 2y (Divide (x+y) from both sides)
M =
Answer:
The answer is A.16
Step-by-step explanation:
2.5/0.4= 6.25
100/6.25= 16
Answer:
Multiplying a complex number by a real number
Explanation:
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. Similarly, when you multiply a complex number z by 1/2, the result will be half way between 0 and z.
