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maw [93]
2 years ago
12

Need some help with this matrices question​

Mathematics
1 answer:
Luba_88 [7]2 years ago
5 0

Answer:

See below.

Step-by-step explanation:

1.

PM as the number or rows not equal to coloumn

2.

1*2 as MN = ( 32 )

( 61 )

3.

= ( 4x2+7x4 4x3+7x8 4x9+7x1)

=(36 68 43)

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6^2 + 3 √9 show work
professor190 [17]

Answer:

45

Step-by-step explanation:

6^2 + 3√9

=36 + (3 x 3)

=36 + 9

= 45

4 0
3 years ago
Read 2 more answers
The shirt was $7.45 he pays with a $20 how much he getting back
nordsb [41]

Answer:

$12.55

Step-by-step explanation:

20-7.45=12.55

4 0
4 years ago
What is the equation of the line that passes through the point (-6,4)<br> and has a slope of -5/6
irakobra [83]

Answer: y = -5/6 x - 1

Step-by-step explanation:

The slope is -5/6, which is why x = -5/6. The - 1 is so the line on the graph will pass through (0,-1) and (-6,4).

7 0
3 years ago
Find the inverse of each function. Is the inverse a function? f(x)=x⁷
Luda [366]

The inverse of the function x^7 is x^-7 and it is also a function.

An inverse function or an anti function is defined as a function, which can reverse into another function.

A standard method to find inverse of a function is to set y=f(x)

let y= f(x)=x^7

thus

\sqrt[7]{y}=x

thus f^{-1}(y)=\sqrt[7]{y}

thus f^{-1} (x)=\sqrt[7]{x}

(To verify this if a function is inverse or not we are required to check for the identity)

f(f^{-1}(x))=f^{-1}(f(x))=x

Therefore, The inverse of the function x^7 is x^-7 and it is also a function.

For further reference:

brainly.com/question/2541698?referrer=searchResults

#SPJ4

3 0
2 years ago
I really need a quick answer to this question. Thank you!​
egoroff_w [7]

Answer:

P U Q = {2, 3, 4, 5, 6, 7, 8, 9, 10}

P ∩ Q = {4, 6, 8}

Step-by-step explanation:

P = {2x, for 1 <= x <= 5}

P = {2, 4, 6, 8, 10}

Q = {x + 1, for 2 <= x <= 8}

Q = {3, 4, 5, 6, 7, 8, 9}

P U Q = {2, 3, 4, 5, 6, 7, 8, 9, 10}

P ∩ Q = {4, 6, 8}

8 0
3 years ago
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