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3 years ago

Perform the operation (-3-2i)-(3+i)

Mathematics

1 answer:

Tpy6a [65]3 years ago

4 0

Answer:

- 6 - 3i

Step-by-step explanation:

Given

(- 3 - 2i) - (3 + i) ← distribute both parenthesis

= - 3 - 2i - 3 - i ← collect like terms

= - 6 - 3i

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sam is 12 in four years his age will be 2/3 the age of his cousin like how old will luke be in two years

Mazyrski [523]

Answer:

he will be 17 in

Step-by-step explanation:

8 0

3 years ago

If ORBIT is coded BEOVG, then how is PLANET coded? /

arlik [135]

Answer:

1. CYNARG

Step-by-step explanation:

This a example of Caesar's Cipher, in which each letter in the original word leads to a ciphered letter according to the following equation:

$C = (P + o) \text{mod} 26$

In which C is the index of the Ciphered letter in the alphabet, P is the index of the original letter and o is the offset.

Finding the offset:

O is coded B

O is the 15th letter in the alphabet, so $P = 15$ .

B is the 2nd letter in the alphabet, so $C = 2$

$C = (P + o) \text{mod} 26$

$2 = (15 + o) \text{mod} 26$

$|o = |2-15| \text{mod} 26$

$o = 13$

$C = (P + 13) \text{mod} 26$

PLANET:

P is the 16th letter in the alphabet.

$C = (16 + 13) \text{mod} 26 = 3$

So P is coded C.

L is the 12th letter in the alphabet:

$C = (12 + 13) \text{mod} 26 = 25$

L is coded Y(25th letter in the alphabet)

A is the 1st letter in the alphabet

$C = (1 + 13) \text{mod} 26 = 14$

A is coded N

N is the 14th letter in the alphabet

$C = (14 + 13) \text{mod} 26 = 1$

N is coded A

E is the 5th letter in the alphabet

$C = (5 + 13) \text{mod} 26 = 18$

E is coded R

So the correct answer is:

1. CYNARG

4 0

4 years ago

What is the square root of -1

patriot [66]

Answer:

Step-by-step explanation:

This is the answer you get when you square and you get a negative number.

6 0

3 years ago

I need this before the 24th! <br> 100 points!

Anestetic [448]

Answer:

The interval is [4,7]

Step-by-step explanation:

The rate of change is given by

f(x2) - f(x1)

-------------------

x2 -x1

We want the rate of change to be 56

f(x2) - f(x1)

------------------- = 56

x2 -x1

We also know that the x2 is 7 so f(x2) = 192

192 - f(x1)

------------------- = 56

7 -x1

192 - f(x1) = 56( 7 -x1)

192 - f(x1) = 392 -56x1

Now we need to pick points from the table and see where it is true

(6,96)

192 - 96 = 392 -56*6

96=56 False

( 5,28)

192 - 28 = 392 -56*5

164=112 False

(4,24)

192 - 24 = 392 -56*4

168=168 True

The interval is [4,7]

6 0

3 years ago

Twenty students from a soccer team want to attend a match. The ticket price is $25 for each student, and the transportation and

azamat

Answer:

525 jerseys

Step-by-step explanation:

you multiply the 25$ and $500 ($25 x 20)+($500 x 20) by the number of students, and then add them together. after that, you multiply it by the $20 ($10,500/$20 = 525) for the jerseys to get 525 jerseys

5 0

3 years ago