All categories

2 years ago

I need help!!! ASAP

Mathematics

1 answer:

Andrej [43]2 years ago

5 0

i cant see the letters to the question

You might be interested in

Vertical line through the point (9,6)

kolezko [41]

What about it that is not a question

5 0

2 years ago

Write the decimal in simplest fractional form: 3.05

Sidana [21]

61/20 is the answer.

5 0

2 years ago

Read 2 more answers

What is each power of i with its multiplicative inverse.

pentagon [3]

Answer:

1) multiplicative inverse of i = -i

2) Multiplicative inverse of i^2 = -1

3) Multiplicative inverse of i^3 = i

4) Multiplicative inverse of i^4 = 1

Step-by-step explanation:

We have to find multiplicative inverse of each of the following.

1) i

The multiplicative inverse is 1/i

if i is in the denominator we find their conjugate

$=1/i * i/i\\=i/i^2\\=We\,\, know\,\, that\,\, i^2 = -1\\=i/(-1)\\= -i$

So, multiplicative inverse of i = -i

2) i^2

The multiplicative inverse is 1/i^2

We know that i^2 = -1

1/-1 = -1

so, Multiplicative inverse of i^2 = -1

3) i^3

The multiplicative inverse is 1/i^3

We know that i^2 = -1

and i^3 = i.i^2

$1/i^3\\=1/i.i^2 \\=1/i(-1)\\=-1/i * i/i\\=-i/i^2\\= -i/-1\\= i$

so, Multiplicative inverse of i^3 = i

4) i^4

The multiplicative inverse is 1/i^4

We know that i^2 = -1

and i^4 = i^2.i^2

$=1/i^2.i^2\\=1/(-1)(-1)\\=1/1\\=1$

so, Multiplicative inverse of i^4 = 1

3 0

2 years ago

A jewelry store marks up the price of its jewelry up 50%. What will be the selling price of an item that the store purchased for

snow_tiger [21]

Answer: $142.5

Step-by-step explanation: If the price is being marked up by 50%, you take 50% or half of the original price of $95, which is 47.5, and add it to your original price.

95 + 47.5 = 142.5

3 0

2 years ago

9/2 = k/25 need a step by step answer please

german

Answer: k=225/2
Decimal form: k= 112.5
Mixed number form: k=112 1/2

4 0

2 years ago