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Helga [31]
3 years ago
12

Write a letter to a principal stating why we need an extra week of summer vacation

Mathematics
1 answer:
11111nata11111 [884]3 years ago
6 0

Answer:

Step-by-step explanation:

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Which expresion is equivalent to 30(1/2x-2)+40(3/4y-4)
Dafna11 [192]

Answer:

15x +30y -220

steps:

30(1/2x-2)+40(3/4y-4)

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= 15x +30y -220

6 0
3 years ago
3
muminat

Answer:

y = 3x + 3

Step-by-step explanation:

when you check, only that equation delivers the correct x and y pairs.

x = 0, => y = 3×0 + 3 = 3

x = 1, y = 3×1 + 3 = 3+3 = 6

x = 2, y = 3×2 + 3 = 6 + 3 = 9

x = 3, y = 3×3 + 3 = 9 + 3 = 12

it all fits.

6 0
2 years ago
What is the imaginary part of z?
Shkiper50 [21]

Answer:

The imaginary part is the multiple of i. It is common practice to use the letter z to stand for a complex number and write z = a + bi where a is the real part and b is the imaginary part. where a is the real part and b is the imaginary part.

Step-by-step explanation:

You can easily check that a complex number z = x + yi times its conjugate x – yi is the square of its absolute value |z|2. Therefore, 1/z is the conjugate of z divided by the square of its absolute value |z|2.

Complex numbers A complex number z is defined as an ordered pair z = (x, y), where x and y are a pair of real numbers.

8 0
3 years ago
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