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Iteru [2.4K]
3 years ago
15

Who can help with Spanish or Algebra

Mathematics
1 answer:
AlekseyPX3 years ago
3 0

Answer:

i can help

Step-by-step explanation:

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Imagine you have a job working at a pizza shop, and you make $400 in one week, but $100 Is withheld from your
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You would make 1200 because of taxes. That all I know sorry
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3 years ago
The Department of Transportation would like to test the hypothesis that the average age of cars on the road is less than 12 year
puteri [66]

Answer:

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

Step-by-step explanation:

information given

\bar X=10.6 represent the sample mean  

\sigma=4.1 represent the population standard deviation

n=45 sample size  

\mu_o =12 represent the value that we want to test  

\alpha=0.05 represent the significance level for the hypothesis test.  

z would represent the statistic

p_v represent the p value for the test

Hypothesis to test

We want to test if the true mean is less than 12, the system of hypothesis would be:  

Null hypothesis:\mu \geq 10  

Alternative hypothesis:\mu < 10  

The statistic is given by:

z=\frac{\bar X-\mu_o}{\frac{\sigma}{\sqrt{n}}} (1)  

Replacing the info given we got:

We can replace in formula (1) the info given like this:  

z=\frac{10.6-12}{\frac{4.1}{\sqrt{45}}}=-2.29  

8 0
4 years ago
What is the value of x?<br><br><br> 68<br><br> 32<br><br> 54<br><br> 36
Dovator [93]

Answer:

A) 68

Step-by-step explanation:

Use the <em>Exterior Angle Theorem</em>.

The Exterior Angle theorem states that the exterior angle's measurement will be equal that of the two opposite interior angles.

Set the equation. Note that you are given the exterior angle and one interior angle:

58 + x = 126

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Subtract 58 from both sides of the equation:

x + 58 (-58) = 126 (-58)

x = 126 - 58

x = 68

A) 68 is your answer.

~

4 0
2 years ago
Read 2 more answers
Let Us Cell U charges $0.15/minute for long distance calls. Cell for Less charges $10.50/hour plus an additional $0.10/minute fo
docker41 [41]
Let Us Call <span>better</span>

translate 5 hours and 15 min into all min to find the total for us cell u. 5*60=300, so 315 minutes. So then multiply .15 by 315 and you get 47.25$. 

<span>Now do Call for us. so first multiply 5 by 10.50. you get 52.50$.</span>
4 0
3 years ago
The total surface area of this triangular pyramid is_____?<br><br> help asap
Inessa05 [86]

Answer: 208 in^2

Step-by-step explanation:

find the surface area of the square base

8(8)=64

find the surface area of the 4 triangular lateral faces

SA=4(bh÷2)

4(8 x 9 ÷2)

4(36)=144

add the surface area of the square base and lateral faces

64+144=208

3 0
3 years ago
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