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liq [111]
3 years ago
5

What is the slope of the line that passes through these two points?​

Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

The answer seems to be 3/1.

Step-by-step explanation:

Use the equation:

(y2-y1)/(x2-x1)

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What is the area of the rectangle ABCD shown below? (Use the distance formula.) A = bh
laila [671]
It’s a 12 because it it
3 0
3 years ago
Sixteen college freshmen were asked to record the number of alcoholic drinks they typically consume in a week. Here are their da
rjkz [21]

Solution: The correct option is d. 8.75

<u>Explanation:</u>

The formula for variance is:

Variance =\frac{\sum(x-\bar{x})^{2}}{n}

First we need to find the mean \bar{x} of the given data:

\bar{x}=\frac{2+4+6+0+1+10+9+0+6+3+6+8+5+4+6+2}{16}=\frac{72}{16} =4.5

Now let's find \sum(x-\bar{x})^{2}, please have a look at the attached picture:

\therefore Variance = \frac{140}{16}=8.75


7 0
3 years ago
A local company wants to evaluate their quality of service by surveying their customers.
stich3 [128]

Answer: b. 0.98

Step-by-step explanation:

The formula to find the maximum error of the estimated mean :

E=z^*\dfrac{\sigma}{\sqrt{n}}            (1)

, where \sigma = standard deviation

n= Sample size

z* = Critical z-value.

As per given , we have

\sigma=5

n=100

Critical value for 95% confidence interval = z*=1.96

Put these values in the formula (1), we get

E=(1.96)\dfrac{5}{\sqrt{100}}

E=(1.96)\dfrac{5}{10}=0.98

Hence, the maximum error of the estimated mean quality for a 95% level of confidence is 0.98.

Therefore , the correct answer is b. 0.98 .

6 0
3 years ago
Read 2 more answers
Which expression is equivalent to (4^-3)^-6<br><br> a.) 4^3<br> b.) 4^-9<br> c.) 4^-18<br> d.) 4^18
mario62 [17]

Answer:

Answer:

The answer is d.) 4^18

3 0
3 years ago
Work out 25% of £18
konstantin123 [22]
It’s £4.5

Convert 25 to a decimal so 0.25

0.25 x 18 = 4.5
8 0
3 years ago
Read 2 more answers
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