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Nikitich [7]
3 years ago
13

Combine like terms to simplify the following expressions 5 + 3(4g - 7)

Mathematics
1 answer:
Alexus [3.1K]3 years ago
5 0

Answer:

12g-16

Step-by-step explanation:

5+12g-21

12g-16

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Kelly had a part time job last year.She paid the state $234 income tax.The state income tax rate is 5.2 percent.How much did Kel
castortr0y [4]

Answer:

$4500

Step-by-step explanation:

Given data

State income tax= $234

we are told that the tax paid is 5.2% of her income

Let her earnings be x

so

5.2% of x = $234

5.2/100*x=234

0.052x= 234

x= 234/0.052

x= $4500

Hence her earnings is $4500

8 0
3 years ago
The time that a randomly selected individual waits for an elevator in an office building has a uniform distribution over the int
Elanso [62]

Answer:

The mean of the sampling distribution of x is 0.5 and the standard deviation is 0.083.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the population, we have that:

Mean = 0.5

Standard deviaiton = 0.289

Sample of 12

By the Central Limit Theorem

Mean = 0.5

Standard deviation s = \frac{0.289}{\sqrt{12}} = 0.083

The mean of the sampling distribution of x is 0.5 and the standard deviation is 0.083.

7 0
3 years ago
One side of this regular hexagon has been extended to form an exterior angle.
dedylja [7]

Check the picture below.

3 0
3 years ago
I really need the awnser ASAP
ANTONII [103]

Answer:

9

count all the whole squares

8 0
3 years ago
What is the area of a square with a side of 4square root 11 mm?
JulijaS [17]

Answer:

176 mm²

Step-by-step explanation:

The area of a square is s² , where s is the measure of the side, thus

area = (4\sqrt{11} )²

        = 4 × 4 × \sqrt{11} × \sqrt{11} = 16 × 11 = 176 mm²

4 0
3 years ago
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