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faust18 [17]
3 years ago
15

Write an expression to represent: Three minus the product of two and a number x

Mathematics
2 answers:
erik [133]3 years ago
8 0

The expression is 3 - 2x

GuDViN [60]3 years ago
8 0

Answer:

3-2x is your answer

Step-by-step explanation:


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There are 450 total students at Snowden School. On Tuesdays, 12% of the students stay after school for Comedy Club. How many stu
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Answer:

54 students

Step-by-step explanation:

First, change the percent to a decimal.

12% = 0.12

Now, multiply the decimal by the total amount of students to find the amount of students that stay after school.

450 × 0.12 = 54

54 students stay after school for Comedy Club.

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3 years ago
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Conduct the appropriate hypothesis test and compute the test statistic. A company that produces fishing line undergoes random te
andre [41]

Answer:

Option D) Yes, because the test statistic is -2.01

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ = 30 pound

Sample mean, \bar{x} = 29.1 pounds

Sample size, n = 20

Alpha, α = 0.05

Sample standard deviation, s =  2 pounds

First, we design the null and the alternate hypothesis

H_{0}: \mu = 30\text{ pounds}\\H_A: \mu < 30\text{ pounds}

We use one-tailed(left) t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{29.1 - 30}{\frac{2}{\sqrt{20}} } = -2.012

Now,

t_{critical} \text{ at 0.05 level of significance, 19 degree of freedom } = -1.729

Since,                    

t_{stat} < t_{critical}

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis. Thus, there were enough evidence to conclude that the fishing line breaks with an average force of less than 30 pounds.

Option D) Yes, because the test statistic is -2.01

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3 years ago
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Savatey [412]
If they are supplementary then 3x + 17x = 180

20x = 180

x = 9     
m<GHI = 27 degrees
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3 years ago
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Answer: 242.08
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Riley is starting her own laundry business. Riley thinks she will do a better job than her competitors, so she thinks she can ch
RoseWind [281]

Answer:

b

Step-by-step explanation:

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3 years ago
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