3 years ago

No clue how to do this someone please help

Mathematics

1 answer:

Free_Kalibri [48]3 years ago

7 0

Answer:

I recommend trying this it is real tutors that explain to you on how to do it it's free

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Two dice are tossed. Find the probability of getting the sum of the dice equal to 28.

dimulka [17.4K]

Answer:

Isn't the sum when you add numbers together? if this is true, there is no way you can get the sum of 28

Step-by-step explanation:

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3 years ago

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ElenaW [278]

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Question 4(Multiple Choice Worth 1 points) (07.04 LC) Factor completely 49x2 − 9. (7x + 3)(7x − 3) (7x + 3)(x − 3) (7x − 3)(7x −

scoundrel [369]

Answer:

Step-by-step explanation:

We take a look at this expression: $49x^2-9$ and notice that both terms are square numbers. $49x^2=(7x)^2$ and $9=3^2$ .

There is a specific formula that I highly recommend you memorize involving differences of squares. It states that given the difference of squares $a^2-b^2$ , it can always be factored into $(a+b)(a-b)$ .

Here, we can apply that. In this case, a = 7x and b = 3. So:

$49x^2-9=(7x)^2-3^2=(7x+3)(7x-3)$

Thus, the answer is A.

Hope this helps!

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