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mash [69]
4 years ago
6

What is the value of 10 - 2( 4-5)?

Mathematics
2 answers:
lukranit [14]4 years ago
8 0

Answer:

12

Step-by-step explanation:

First we do 4-5 because of Order of Operations. So we get -1

Then we do multiplication because of Order of Operations and we get -2*-1=2

So now we do 10+2 and we get 12.

You may be asking why I did -2*-1.

It honestly doesn't matter.

Let's say I did 2*-1. We get -2.

Then we do 10-(-2) and If you subtract a negative, it's just adding basically. So we can put it as 10+2 and we get 12.

VladimirAG [237]4 years ago
3 0

Answer:

12

Step-by-step explanation:

you would need to use BODMAS to work this out

as a result you would work out the value in the brackets which would equal to -1 so the question would look like this: 10-2(-1)

next you would do the multiplication due to the fact it comes next in the order

so you would end up with 10+2 which would equal to 12

Hope this helps

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Strike441 [17]

Step-by-step explanation:

Area of the original rectangle=7×9 m²

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3 years ago
Need help with this question
ELEN [110]

Step-by-step explanation:

coordinate point of B(2,5)

and coordinate point ofC(3,1)

Distance of BC

\sqrt{ {(x2 - x1)}^{2} +  {(y2 - y1)}^{2}  }

=  \sqrt{ {(3 - 2)}^{2}  +  {(1 - 5)}^{2} }

=  \sqrt{ {1}^{2} +  {( - 4)}^{2}  }

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3 years ago
What is the surface area of the regular pyramid given below?
yuradex [85]

For this case we have by definition, that the total surface area of a regular pyramid with a square base is given by:

SA = \frac {1} {2} p * S + A_ {b}

Where:

p: It is the perimeter of the base

S: It's the inclination

A_ {b}: It is the area of the base

Substituting:

A_ {b} = 7 ^ 2 = 49units ^ 2\\p = 7 + 7 + 7 + 7 = 28units\\S = 10units\\SA = \frac {1} {2} 28 * 10 + 49\\SA = 140 + 49\\SA = 189 \ units ^ 2

ANswer:

Option B

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4 years ago
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