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Flura [38]
2 years ago
13

Simplify 5+{6[12+(1−3)2]−4}

Mathematics
2 answers:
natulia [17]2 years ago
6 0
We Need To Use Pemdas.
First, 1-3 = -2.
<span>5+{6[12+(-2)2]−4}
Next, -2 * 2 = -4.
</span><span>5+{6[12+(-4)]−4}
Next, 12 + (-4) = 8.
</span><span>5+{6[8]−4}
Next, 6 * 8 = 48.
</span><span>5+{48−4}
Next, 48 - 4 = 44
</span><span>5+44 = 49
So, Your Answer Is 49.</span>
CaHeK987 [17]2 years ago
4 0
The answer is simply 9 :)
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find a number such that if 8 is subtracted from 9 times the number , the result is 6 more than twice the number​
zheka24 [161]

Answer:

x=2

Step-by-step explanation:

let the number be x

9x-8=6+2x

9x-2x=6+8

7x=14

x=14/7

x=2

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3 years ago
3 times the sum of y and 9 <br><br> in algebraic expression please help me out!!
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3(y+9)

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3 years ago
Solve y = x + 4 for x.<br> x = y − 4<br> x = y + 4<br> x = −y + 4<br> x = −y − 4
finlep [7]

Answer:

x=y-4

Step-by-step explanation:

y=x+4

-4

y-4=x

8 0
3 years ago
Read 2 more answers
A machine that cuts corks for wine bottles operates in such a way that the distribution of the diameter of the corks produced is
Norma-Jean [14]

Answer:

A. P(x<3.85 or x>4.15)= P(x<3.85)+P(x>4.15) = 0.1336

Step-by-step explanation:

Working with an ordinary Normal Distribution of probability and trying to find the probabilities asked in it could be difficult, because there´s no easy method to find probabilities in a generic Normal Distribution (with mean μ=4 and STD σ=0.1). The recommended approach to this question is to use a process called "Normalize", this process let us translate the problem of any Normal Distribution to a Standard Normal Distribution (μ=0 and σ=1) where there´s easier ways to find probabilities in there. The "Normalization" goes as follows:

Suppose you want to know P(x<a) of the Normal Distribution you are working with:

P(x<a)=P( (x-μ)/σ < (a-μ)/σ )=P(z<b)   ( b=(a-μ)/σ )

Where μ is the mean and σ is the STD of your Normal Distribution. Notice P(z<b) now it´s a probability in a Standard Normal Distribution, now we can find it using the available method to do so. My favorite is a chart (It´s attached to this answer) that contains a lot of probabilities in a Standard Normal Distribution. Let´s solve this as an example

A. We want to find the probability of the cork being defective (P(x<3.85) + P(x>4.15)). Now we find those separated and, then, add them for our answer.

Let´s begin with P(x<3.85), we start by normalizing that probability:

P(x<3.85)= P( (x-μ)/σ < (3.85-4)/0.1 )= P(z<-1.5)

And now it´s time to use the chart, it works like this: If you want P(z<c) and the decimal expansion of c=a.bd... , then:

P(z<c)=(a.b , d)

Where (a.b , d) are the coordinates of the probability in the chart. Keep in mind that will only work with "<" (It won´t work directly with P(z>c)) and we will do some extra work in those cases.

P(z<-1.5) is in the coordinates (-1.5 , 0)

P(z<-1.5)= 0.0668

P(x<3.85)= 0.0668

Now we are looking for P(x>4.15), let´s Normalize it too:

P(x>4.15)=P( (x-μ)/σ < (4.15-4)/0.1 )=P(z>1.5)

But remember the chart only work with "<", so we need to use a property of probability:

P(z>1.5)= 1 - P(z<1.5)

Using the chart:

P(z<1.5)=0.9332                             (1.5 , 0)

P(z>1.5)= 1 - 0.9332

P(z>1.5)= 0.0668

P(x>4.15)= 0.0668

And our final answer will be:

P(x<3.85 or x>4.15)= P(x<3.85)+P(x>4.15) = 0.1336

4 0
3 years ago
Determine a series of transformations that would map Figure E onto Figure F.
Margaret [11]

Answer:

Step-by-step explanation:

8 0
2 years ago
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