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3 years ago

-3(-7) I need this asap pls help me

Mathematics

2 answers:

MAVERICK [17]3 years ago

6 0

$\boxed{21}$

When you multiply a negative and a negative, it is going to be a positive number. In this case, we're multiplying -3 and -7, which is equal to 21. If you're not sure of the answer for multiplication problems like this, just use a calculator to check your work.

7nadin3 [17]3 years ago

3 0

Hi there! Hopefully this helps!

-------------------------------------------------------------------------------------------------

<h2>Answer: $\boxed{21}$ </h2><h2 /><h2>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h2>

When you multiply two negatives (-, -,), you are gonna get a positive(+)

<em>[Like making a cross out of two lines].</em>

$-3(-7) = +3(+7)$

<h2>Since 3(7) normally <u>equals 21</u>, that would be the answer for this case.</h2>

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djyliett [7]

Answer:

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Step-by-step explanation:

Here, we want to calculate the possible number of zip codes in the Houston area

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For the third digit, we are selecting 1 number out of 0,3,4 or 5

This means 4 C 1

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We have 0-9, a total of 10 digits

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So the number of possible zip codes will be;

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6 0

3 years ago

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lutik1710 [3]

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(I think this is right but I am not completely sure... if its not I am sorry :/ )

Step-by-step explanation:

First Way:

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Second Way:

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3 years ago

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Answer:

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if you have any questions

Step-by-step explanation:

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Answer:

Step-by-step explanation:

Hello,

First of all, we know that the solution of the following equation

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are

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<em>I would suggest that you try to apply this formula first and check the solution only after you try.</em>

Let's apply it in this case, we have:

$a=4\sqrt{5} \\ \\ b=-24 \\ \\ c= -9\sqrt{5}$

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Hope this helps.

Do not hesitate if you need further explanation.

Thank you

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Answer:

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Step-by-step explanation:

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