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Sunny_sXe [5.5K]
2 years ago
11

Find the sum for(2x−6)+4(x−3)

Mathematics
2 answers:
Mars2501 [29]2 years ago
7 0
Use distributive property
4(x-3) = 4x-12
2x-6 + 4x - 12
Combine like term
6x - 18
mylen [45]2 years ago
3 0

Answer:

6x - 18

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Distributive Property

<u>Algebra I</u>

  • Combining Like Terms

Step-by-step explanation:

<u>Step 1: Define expression</u>

(2x - 6) + 4(x - 3)

<u>Step 2: Simplify</u>

  1. Distribute 4:                         2x - 6 + 4x - 12
  2. Combine like terms (x):       6x - 6 - 12
  3. Combine like terms (Z):       6x - 18
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A = [6 - (-2)] / 2
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T = 4 - 0 = 4
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The original sine function was
y = 4 sin πx/2

After the transformation, the equation now is
y = 4 sin [π(x+2)/2] + 2
4 0
3 years ago
Read 2 more answers
A baker made 35 pastries in 3 1/2 hours. how many pastries dod the baker make in one hour?
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Answer:

10 pastries

Step-by-step explanation:

To find how many they made in 1 hour, divide 35 by 3 1/2

35/3.5

= 10

So, he made 10 pastries in 1 hour

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3 years ago
On a circle of radius 10 feet, what angle would subtend an arc of length 1 feet?
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6 0
3 years ago
What is equal to n in this equation
IRISSAK [1]

Answer:

n = -45

Step-by-step explanation:

(n-5) /10 = -5

Multiply each side by 10

(n-5) /10 *10= -5*10

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4 0
3 years ago
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of pain relief drug is norm
FrozenT [24]

Answer:

a) P(1

b) P(X

Step-by-step explanation:

1) Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

2) Part a

Let X the random variable that represent the duration of a safe dosage of pain relief drug, and for this case we know the distribution for X is given by:

X \sim N(1.5,0.8)  

Where \mu=1.5 and \sigma=0.8

We are interested on this probability

P(1

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(1

And we can find this probability on this way:

P(-0.625

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-0.625

3) Part b

We are interested on this probability

P(X

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

P(X

And we can find this probability on this way:

P(z

6 0
3 years ago
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