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EastWind [94]
2 years ago
8

Which is one reason why this expression is equal to 0 -3.08+3.08/3.08•4.66

Mathematics
2 answers:
Tju [1.3M]2 years ago
7 0

Answer:

The expression is zero as numerator is zero.

Step-by-step explanation:

Given : Expression \frac{-3.08+3.08}{3.08\times 4.66}.

To find : Which is one reason why this expression is equal to 0 ?

Solution :

In the expression  \frac{-3.08+3.08}{3.08\times 4.66}

The numerator value is -3.08+3.08

Using property of addition and subtraction,

If we add negative term and positive term with same value always became zero.

So, -3.08+3.08=0

As numerator is zero dividing by denominator always became zero.

\frac{-3.08+3.08}{3.08\times 4.66}=\frac{0}{3.08\times 4.66}=0

Therefore, the expression became zero.

Eduardwww [97]2 years ago
4 0

Step-by-step explanation:

it is equal to zero because n/m where n is the numerator and m is the denominator.

any number where the numerator is zero, the answer will be zero. Zero divided by any number is zero.

For -3.08+3.08=0, and since it is part of the numerator it becomes 0/3.08•4.66 which equals to 0

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katen-ka-za [31]

Answer:

The 95% confidence interval for the mean GPA of all accounting students at this university is between 2.5851 and 3.2549

Step-by-step explanation:

We are in posessions of the sample's standard deviation. So we use the student's t-distribution to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 20 - 1 = 19

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975([tex]t_{975}). So we have T = 2.0930

The margin of error is:

M = T*s = 2.0930*0.16 = 0.3349.

In which s is the standard deviation of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 2.92 - 0.3349 = 2.5851

The upper end of the interval is the sample mean added to M. So it is 2.92 + 0.3349 = 3.2549

The 95% confidence interval for the mean GPA of all accounting students at this university is between 2.5851 and 3.2549

4 0
2 years ago
On a coordinate plane, a curved line crosses the y-axis at (0, 1), crosses the x-axis at (.25, 0), turns at point (2, negative 3
valentina_108 [34]

Answer:

All numbers greater than or equal to -3.

Step-by-step explanation:

Just took the edge test.

8 0
2 years ago
Analysts determined that the $255,000 salary is an outlier. The box-and-whisker plot for the remaining data is shown. Describe t
bekas [8.4K]

Answer:

edge 2020

Step-by-step explanation:

The data appears slightly skewed, so the median is probably the most appropriate measure.

My friend has a good chance of making between $16,000 and $23,000 because that is the range for the middle 50% of employees.

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2 years ago
Read 2 more answers
Justin is working two summer jobs, making $8 per hour babysitting and $14 per hour lifeguarding. Last week Justin earned a total
alexdok [17]

Answer:

Justin worked as a babysitter  8 hours and worked as a lifeguard 2 hours last week

Step-by-step explanation:

Let

x ----> number of hours worked as a babysitter  last week

y ----> number of hours worked as a lifeguard last week

we know that

8x+14y=92 ----> equation A

x=4y ----> equation B

Solve the system by substitution

Substitute equation B in equation A

8(4y)+14y=92

solve for y

32y+14y=92

46y=92

y=2

Find the value of x

x=4(2)=8

therefore

Justin worked as a babysitter  8 hours and worked as a lifeguard 2 hours last week

6 0
2 years ago
If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charg
Drupady [299]

Answer:

a) Total cost = 49 + 38.75m

b) Total cost = 149 + 38.75m

c) The graphs of the lines are parallel and both has slope of - 2.5

d)Difference in total cost = $132.5

Step-by-step explanation:

Total cost , TC = Initial membership fee + monthly charges

a) TC = 49 + 38.75m

b)TC = 149 + 38.75m

d) 149 + 38.75(6months) = 381.5

49 + 38.75(12months) = 514

Difference in total cost = 514 -381.5 = $132.5

7 0
2 years ago
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