Answer:
i) 28 - 30i
ii) 36 + 28i
Step-by-step explanation:
i) x = 6 + i ⇒2x = 2(6 + i) = 12 + 2i
z = 4 - 8i ⇒ 4z = 4(4 - 8i) = 16 - 32i
2x + 4z = (12 + 2i) + (16 - 32i) = 28 - 30i
ii) w = -1 + 5i and z = 4 - 8i
w × z = (-1 + 5i)(4 - 8i) = -4 + 8i + 20i - 40
⇒collect like terms
w × z = -4 + 28i - 40
∵ 
∴w × z = -4 + 28i - 40(-1) = -4 + 28i + 40 = 36 + 28i
Answer:
4 units ...................
1. 2/100 or 1/50, as 0.02 is equal to 2 hundreths. Simplifying gets you 1/50
3. 1/2 or 50/100, as 0.50 is equal to 0.5 which is equal to 50 hundreths. Simplify to get 1/2
5. 88/100 or 44/50 , as 0.88 is equal to 88 hundreths. After simplifying, you get 44/50
Depending on your teacher, you may be told to not simplify. It depends
Price of one adult ticket is $9 and price of one student ticket is also $9.
Step-by-step explanation:
Let,
Adult ticket = x
Student ticket = y
According to given statement;
x+2y=27 Eqn 1
2x+2y=36 Eqn 2
Subtracting Eqn 1 from Eqn 2;

Putting x=9 in Eqn 1;

Dividing both sides by 2;

Price of one adult ticket is $9 and price of one student ticket is also $9.
Keywords: linear equations, subtraction
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#LearnwithBrainly
Answer:
yes it is
Step-by-step explanation:
it is since there is a common ratio between each term