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Colt1911 [192]
3 years ago
14

The operation denoted is by * is commutative and why?​

Mathematics
2 answers:
inn [45]3 years ago
8 0

Answer:

operation is commutative if and only if equal elements appear in all positions that are symmetrically placed relative to the diagonal from upper left to lower right. That is, to check whether an operation defined by a Cayley’s table is commutative, simply draw a diagonal line from upper left to lower right

Step-by-step explanation:

kipiarov [429]3 years ago
3 0

Answer:

The commutative property of multiplication states that changing the order of the numbers we are multiplying, does not change the product.

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Use the graph for Parts A and B....
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It is a function.  It passes the vertical line test, meaning for each x there's at most one y.

When x=2 we see y=-3 as (2,-3) is a point on the graph


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4 years ago
10 to the 5th power × 10 to the 7th power
FrozenT [24]

Remember that the rule with multiplying exponents with the same base is to add the exponents together.

In this case: 10^5*10^7=10^{5+7}=10^{12}

10^12 is your answer.

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3 years ago
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Belinda used an online broker who charged a flat fee of $8.99 per transaction. If Belinda bought 100 shares of of BMN Inc, stock
lana66690 [7]

The total cost of transactions for Belinda is $899.

<u>Solution:</u>

Given that, Belinda used an online broker who charged a flat fee of $8.99 per transaction.  

Belinda bought 100 shares of of BMN Inc, stock at \$12.85 a share,  

We have to find what was the total cost of the transaction?  

Now, we know that, transaction cost per transaction = $8.99

And, number of transactions = 100 shares.

Then, total cost of transaction = cost per transaction x number of transactions = 100 x 8.99 = $899

Hence, the total cost of transactions is $899

4 0
4 years ago
Jordan is, ordering a taxi from an online taxi service. The taxi charges $4 just for the
adell [148]

Answer: $8

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7 0
3 years ago
Mathieu is finding the x-intercepts of the function f(x)=x^2+4x+3. His world is shown below. (In the photo) The Answer is: (He s
navik [9.2K]

Answer:

X intercepts are points where a function intersects or cuts through the x axis where y=0.

Step-by-step explanation:

In the function given which is f(x) =x^2 +4x + 3 we see that this is a parabola of which when the graph is drawn it has a U shape so when finding x intercepts of this function it is those points on the function where the graph cuts the x axis and at those two points f(x)= 0, so here Mathieu had made a mistake of factorizing and equating the x intercepts for this function.

For finding the X intercepts let f(x) = 0

therefore 0= x^2 + 4x + 3  now we solve for x

0= (x+1)(x+3)  

(x+1)= 0 or (x+3)=0

therefore x=-1 or x=-3

now if you substitute these values onto the function they give f(x)= 0,

f(-1) = (-1)^2 + 4(-1) + 3 = 0

f(-3) = (-3)^2 + $(-3) + 3 =0

now let us look at Mathieus answer which is x+1 = x+3 yes these x values do give the same y value but they are not equal because if you can actually solve this further you would not get a defined answer. Both these are factors of the function but are not actually equal as the function would not be able to be drawn if this was the case.

3 0
3 years ago
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