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sammy [17]
3 years ago
8

What is a determinant of a matrix????? What is a matrix?

Mathematics
1 answer:
ololo11 [35]3 years ago
4 0

Answer:

In linear algebra, the determinant is a scalar value that can be computed from the elements of a square matrix and encodes certain properties of the linear transformation described by the matrix. The determinant of a matrix A is denoted det(A), det A, or |A|.

You might be interested in
Which ordered pair is a solution to the system of inequalities?
barxatty [35]

Answer:

D

Step-by-step explanation:

To determine which ordered pair is a solution.

Substitute the x and y values into the inequalities.

Note that both must be true for the pair to be a solution of the system.

(4, 8)

8 > 2(4) → 8 > 8 ← False

8 > 7 ← True

(0, 0)

0 > 2(0) → 0 > 0 ← False

0 > 7 ← False

(3, 7)

7 > 2(3) → 7 > 6 ← True

7 > 7 ← False

(1, 9)

9 > 2(1) → 9 > 2 ← True

9 > 7 ← True

Thus (1, 9) is a solution to the system of equations. → D

6 0
3 years ago
If a polynomial function f(x) has roots 6 and square root of 5, what must also be a root of f(x)?
ivolga24 [154]

Answer:

-\sqrt{5}

Step-by-step explanation:

A root with square root or under root is only obtained when we take the square root of both sides. Remember that when we take a square root, there are two possible answers:

  • One answer with positive square root
  • One answer with negative square root

For example, for the equation:

x^{2}=3

If we take the square root of both sides, the answers will be:

x=\sqrt{3} \text{ or } x= -\sqrt{3}

Only getting one solution with square root is not possible. Solutions with square root always occur in pairs.

For given case, the roots are 6 and \sqrt{5}. Therefore, the 3rd root of the polynomial function f(x) had to be -\sqrt{5}

It seems you made error while writing option B, it should be - square root of 5.

4 0
3 years ago
Simplify and state the excluded values for <br> P+4/p^2+6p+8
AlladinOne [14]
We have that
p+4/p²<span>+6p+8

we know that
</span><span>the denominator can not be zero
so
the domain of the function is all real numbers except zero

</span>p+4/p²+6p+8--------> multiply by p² all expression
<span>p</span>²*(p)+p²*(4/p²)+p²*(6p)+p²*8
<span>p</span>³+4+6p³+8p²
<span>7p</span>³+8p²+4<span>
</span><span>
</span>
3 0
3 years ago
A recipe for lemonade calls for 1 cup of sugar and 5cups of water. How much sugar is used per cup of water?
umka2103 [35]
1/5th of a cup of sugar is used.
6 0
3 years ago
Read 2 more answers
Hey can some one look at this?
AURORKA [14]
I'm just going to give you a very quick answer, but I can answer the question
1 foot = 12 inches.
x feet = 60 inches.

1 foot * 60 inches = 12 * x divide by 12

60 / 12 = 5 

So the person is at least 5 feet tall. The height you want is 5 feet 4 inches.

So add 4 inches to 5 feet.
or
Add 4 inches to 60 inches.
you get 64 inches.

There are 20 entries all together. 2 people are 64 inches tall. 

P(64) = 2/20 = 1/10 = 0.1

Answer P(64) = 0.1

I would check all of this if I were you. I'm not sure I counted either one correctly. 

6 0
3 years ago
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