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zlopas [31]
3 years ago
7

Find two matrices A and B such that 2A-3B= [5 0

Mathematics
1 answer:
amm18123 years ago
3 0

The easy answer: If, say, B is the zero matrix, i.e.

B=\begin{bmatrix}0&0\\0&0\end{bmatrix}

then

2A=\begin{bmatrix}5&0\\-1&2\end{bmatrix}\implies A=\begin{bmatrix}\dfrac52&0\\\\-\dfrac12&1\end{bmatrix}

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Which of the following shows the correct value of 50
Orlov [11]

Answer:

None of the options is correct

Step-by-step explanation:

It is important to know that he expression a < x < b means that x is greater than a and less than b. So, for finding the correct value let's analyse each option.

A. 4 < 50 < 5

50 is greater than 4 but it is not less than 5, so, option A is incorrect.

B. 7 < 50 < 8

50 is greater than 7 but it is not less than 8, so, option B is incorrect.

C. 8 < 50 < 9

50 is greater than 8 but it is not less than 9, so, option C is incorrect.

D. 10 < 50 < 11

50 is greater than 10 but it is not less than 11, so, option D is incorrect.

Thus, none of the options is correct.

8 0
3 years ago
Please answer correctly !!!! Will mark brianliest !!!!!!
mr Goodwill [35]

Answer:

-3x-5 x-4 I this work good luck

6 0
3 years ago
Read 2 more answers
Helpppp plz??????????????
professor190 [17]

Answer:

6/54 or 1/9

Step-by-step explanation:

6/54 reduces to 1/9

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8 0
2 years ago
What is the absolute value of |7 1\8|
Studentka2010 [4]

Answer:

Step-by-step explanation:

absolute value of |7 1/8| is 7 1/8

7 0
3 years ago
The following section is a statement from the rental agreement Tim signed when he rented his car this past weekend. "Upon checko
Firdavs [7]
To check how much Tim will pay to refill the gas tank using one of the on-site pumps, we can create a linear model. We know from our problem that the Renter's charge $4.50 per gallon plus a $5.00 refueling, so let x be the number of gallons and y the total cost.
y=4.50x+5 
We also know that the fuel tank in the car is half empty and t<span>he car has a 12-gallon fuel tank, so half tank is 6 gallons. Lets replace the number of gallons in our linear model with 6 to fin the total cost: 
</span>y=4.50x+5 
y=4.50(6)+5
y=27+5
y=32

Now, to find how much Tim will pay if he decides to refuel the car on his own, we can also create a linear model.
Let x be the number of gallons and y the total cost. We know form our problem that <span>refueling the car on his own will cost $2.59 per gallon and the late fee charge is $32.
</span>y=2.59x+32
<span>We already know that half tank is 6 gallons, so 
</span>y=2.59(6)+32
y=15.54+32
y=47.54
<span>
Comparing the result of our two linear models we can conclude that the correct answer is: </span><span>b. It would be cheaper to return the car on time and pay the refueling costs.</span>
5 0
3 years ago
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