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3 years ago

NEED HELP ASAP PLEASE

Mathematics

1 answer:

Cloud [144]3 years ago

5 0

the answer is 2/3 and the y intercept is 2. we can find the y intercept because its where the line crosses the y axis and the slope by calculating rise and run using 2 points bebe :)

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50 POINTS!PLEASE HELP

Mamont248 [21]

Step-by-step explanation:

For no 1...

The range is [ -9, -7, 1]

For no 2....

The range is [-12, -10, -2]

For no 3.....

The range is [-11, -8, 4]

4 0

3 years ago

Read 2 more answers

Write equations for the vertical and horizontal lines passing through the point (-4,-9).

Gnesinka [82]

Answer:

Below.

Step-by-step explanation:

These are perpendicular line which intersect at (-4, -9).

Vertical line is x = -4.

Horizontal lone is y = -9.

6 0

3 years ago

Find the total cost. $ 1,299 T.V.; 7% tax<br> Math

Leto [7]

The total to this would be $1,389.93 because $1,299 + 7% = $1,389.93

4 0

3 years ago

-18.3 = b + -8.3<br> b =

Sauron [17]

Answer:

Here,

-18.3=b+ -8.3

-18.3+8.3=b

-10=b

the value of b is -10.

3 0

3 years ago

Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0

3 years ago