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3 years ago

What is the value of 3 to the power 2 over 3 to the power 4

Mathematics

2 answers:

neonofarm [45]3 years ago

7 0

<em>Greetings from Brasil...</em>

From potentiation properties:

Mᵃ ÷ Mᵇ = Mᵃ⁻ᵇ

<em>division of power of the same base: I repeat the base and subtract the exponents</em>

In our case

3² ÷ 3⁴

3²⁻⁴

We also know about another property: P⁻ⁿ = (1/Pⁿ) so

3⁻² = 1/3²

Roman55 [17]3 years ago

7 0

Answer:

1/9

Step-by-step explanation:

hope i helped

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Solve the system of equations using the linear combination method. {9x+5y=35 2x+5y=0 Enter your answers in the boxes.

Vikentia [17]

9x+ 5y=35
2x + 5y=0 |* -1

9x +5y= 35
-2x -5y= 0
-----------------
7x / = 35
x=35:7
x=5

2x+5y=0
2*5+5y=0
10+5y=0
5y=-10
y= -10:5
y=-2

5 0

3 years ago

A store is having a sale with a 19% discount on all merchandise. Write an

inna [77]

Answer:

Step-by-step explanation:

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2 years ago

Which equations results from adding the equations in this system?<br> x+6y=9<br> -x+2y=-15

UkoKoshka [18]

Answer:

8y = -6

Step-by-step explanation:

Simply add the equations as you would numbers.

The 'x's cancel each other out. The 'y's add together as normal numbers.

9 + (-15) = -6

Hope that this helps!

4 0

2 years ago

(10

Anni [7]

Given:

The matrix multiplication

$\begin{bmatrix}4&5&6\\1&2&3\end{bmatrix}\begin{bmatrix}10\\20\\30\end{bmatrix}$

To find:

The order of resulting matrix.

Solution:

We know that, if order of first matrix is $m_1\times n_1$ and the order of second matrix is $m_2\times n_2$ , then the order of these two matrices is $m_1\times n_2$ .

We have,

$\begin{bmatrix}4&5&6\\1&2&3\end{bmatrix}\begin{bmatrix}10\\20\\30\end{bmatrix}$

Here, the order of first matrix is $2\times 3$ and the order of the second matrix is $3\times 1$ . So, the order of the second matrix is $2\times 1$ . It is also written are 2 by 1.