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torisob [31]
3 years ago
5

8r-9r+11r what is the answer ​

Mathematics
1 answer:
zysi [14]3 years ago
3 0

Answer:

10r

Step-by-step explanation:

8r - 9r +11r

-r +11r

10r

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What is the determinant of matrix |-8|?​
ivanzaharov [21]

Given:

The matrix is [-8].

To find:

The determinant of given matrix, i.e, |-8|.

Solution:

If a matrix is A of order 1\times 1, then the value of the determinant of that matrix is equal to the element of that matrix.

For example: Let A be the matrix of order 1\times 1.

A=[a]

Then,

|A|=a

The given matrix is [-8]. So, the  determinant of given matrix, i.e, |-8|, is

|-8|=-8

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Kevin has 2 apples and john took 1 how much apples does kevin have
gavmur [86]
The answer to the question is 1. 2 - 1 = 1
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insens350 [35]

Step-by-step explanation:

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13)

\sin(60)  =  \frac{x}{22}  \\ x = 11 \sqrt{3}  \\  \cos(60)  =  \frac{y}{22}  \\ y = 11

14)

{16}^{2}  =  {x}^{2}  +  {y}^{2}  \\ x = y \\  {16}^{2}  = 2 {x}^{2}  \\ x = 8 \sqrt{2}  \\ y = 8 \sqrt{2}

15)

\tan(30)  =  \frac{x}{42}  \\ x = 14 \sqrt{3}  \\   \cos(30)  = \frac{42}{y}  \\ y =  \frac{42}{ \cos(30) }  \\ y = 28 \sqrt{3}

16)

{(19 \sqrt{2}) }^{2}  =  {x}^{2}  +  {y}^{2}  \\ x = y \\ 722 = 2 {x}^{2}  \\  {x}^{2}  = 361 \\ x = 19 \\ y = 19

4 0
3 years ago
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tester [92]

Answer:

c) 9

Step-by-step explanation:

7321=9

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3 years ago
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