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Mnenie [13.5K]
3 years ago
5

The simplification of 2(4²-3)-7-519 5112​

Mathematics
2 answers:
makvit [3.9K]3 years ago
7 0

Answer:

19

Step-by-step explanation:

To simplify this we need to follow the order of operations.

We begin with: 2(4^2-3)-7

First, we need to simplify the exponent

2(16-3)-7

Next, we need to do everything within the parenthesis

2(13)-7

Now we can multiply

26-7

And lastly, we can subtract

19

Serjik [45]3 years ago
6 0
The answer is 19



First we do the power
So, 2(16_3)_7

Then we do the brackets
So,
2(13)_7

Then multiplication
So, 26_17

So, 19
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Find two numbers, if their sum is 49 and their difference is 1/2 .
amm1812

Answer:

x=24\frac{3}{4}\\ y=24\frac{1}{4}

Step-by-step explanation:

Let the two numbers be x and y

So we have:

x +y = 49\\x-y=\frac{1}{2}

using the elimination method, add the two equations together:

2x=49\frac{1}{2} \\2x=\frac{99}{2}

solve for x:

x=\frac{99}{4}\\x=24\frac{3}{4}

substitute our value for x back into the first equation we made:

x+y=49\\(\frac{99}{4}) + y=49\\y=49-\frac{99}{4}\\y=\frac{97}{4} \\ y=24\frac{1}{4}

therefore,

x=24\frac{3}{4}\\ y=24\frac{1}{4}

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3 years ago
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Colt1911 [192]

Answer:

This is multiplicative identity in which 4✖️1=4

Step-by-step explanation:

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3 years ago
Simplify This Expression<br><br> 2.5(4x+10)−2(3x−15)
BaLLatris [955]
The way your problem is set it should be simplified to this....4x + 55
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Two fair six-sided dice are rolled.
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Please help I will give brainliest
Katyanochek1 [597]

Answer:

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Step-by-step explanation:

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In this case, a=5, b=10, and h=4

When you input those values into the formula and solve for A, you get A=30

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