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Naddika [18.5K]
3 years ago
9

How do I evaluate this expression ? (-10)-(-11)-10

Mathematics
1 answer:
lianna [129]3 years ago
6 0
Using the PEMDAS method will allow you to solve the expression. First, (-10)-(-11)= 1. Then you would subtract the -10 which would give you -9 as your full answer!
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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
3 years ago
Is the product of 3√ and 2.8 is a rational number acquisition?
svetlana [45]

Answer:

It is not rational

Step-by-step explanation:

Given

\sqrt 3 * 2.8

Required

Rational or Irrational

\sqrt 3 * 2.8

\sqrt 3 =1.73205

So, we have:

\sqrt 3 * 2.8 = 1.73205 * 2.8

\sqrt 3 * 2.8 = 4.84974

<em>The result of the product: 4.84974  is not rational because it can not be represented as a fraction of two integers.</em>

5 0
3 years ago
Pls help I will mark brainliest quick
azamat

Answer:

the picture is blocked

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
A box has dimensions of 2.6 cm x 3.5 cm x 5.1 cm. What is the volume of the box in cubic centimeters?
aivan3 [116]

Answer:

46.4 cm3

Step-by-step explanation:

3 0
3 years ago
Find the missing value -3 = ? -11
maria [59]

Answer

Positive 8 is the missing value

Step-by-step explanation:

-11 + 8 = -3

6 0
2 years ago
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