Answer:

Step-by-step explanation:

The Caucasus Mountains

In order to solve this, you have to look at the order for each of the variable terms. In this case t is your variablr

<span>4<span>t0</span>=4</span>
exponent is 0.
<span>−<span>t1</span>=−t</span>
exponent is 1.
<span>t2</span>
exponent is 2.
So you order them by exponents from least to greatest (ascending).
<span><span>4−t+<span>t2</span></span></span>

I never was good at those XD

**Answer:**

Option A, B and E

**Step-by-step explanation:**

Determinant = ad-bc

Let's look at the picture and solve all

<u><em>**Option A)**</em></u>

If the row ( c and d ) is zero, the determinant will be zero

=> a(0)-b(0)

=> 0-0

=> 0 (So, True)

<u><em>**Option B) **</em></u>

If a = b = c = d (Let's say 1), the determinant will be

=> (1)(1)-(1)(1)

=> 1-1

=> 0 (So, True)

<u><em>**Option C)**</em></u>

An Identity matrix is

=>

So , it's determinant will be

=> (1)(1)-(0)(0)

=> 1-0

=> 1 (So, False)

<u><em>**Option D)**</em></u>

The determinant with matrix will all positive numbers can be negative as well as positive. This is not necessary that it would be positive. (So, False)

<u><em>**Option E)**</em></u>

A zero matrix is

=>

So, it's determinant is:

=> (0)(0)-(0)(0)

=> 0-0

=> 0 (So,True)