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Triss [41]
3 years ago
10

Choose the graph below that has an undefined slope. (5 points) vertical line through the point negative 6 comma 0 line through t

he points negative 1 comma 1 and 0 comma negative 4 horizontal line through the point 0 comma negative 6 line through the points negative 2 comma negative 3 and 0 comma 6
Mathematics
1 answer:
julsineya [31]3 years ago
4 0

Answer:

vertical line through the point (-6,0)

Step-by-step explanation:

Vertical lines have an undefined slope.

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Find the value of x. Round your answer to the nearest tenth.
worty [1.4K]

Answer:

9

Step-by-step explanation:

cos(68°)×24= 8.99 which can be rounded to 9

3 0
3 years ago
It is believed that Lake Tahoe Community College (LTCC) Intermediate Algebra students get less than seven hours of sleep per nig
Kitty [74]

Answer: No , at 0.05 level of significance , we have sufficient evidence to reject the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average.

Step-by-step explanation:

Let \mu denotes the average hours of sleep per night.

As per given , we have

H_0:\mu=7\\H_a:\mu

, since H_a is left-tailed and population standard deviation is unknown, so the test is a left-tailed t -test.

Also , it is given that ,

Sample size : n= 22

Sample mean : \overline{x}=7.24

Sample  standard deviation : s= 1.93

Test statistic : t=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}

i.e.  t=\dfrac{7.24-7}{\dfrac{1.93}{\sqrt{22}}}\approx0.58

For significance level \alpha=0.05 and degree of freedom 21 (df=n-1),

Critical t-value for left-tailed test= t_{\alpha, df}=t_{0.05,21}=- 1.7207

Decision : Since the test statistic value (0.58) > critical value  1.7207, it means we are failed to reject the null hypothesis .

[Note : When |t_{cal}|>|t_{cri}|, then we accept the null hypothesis.]

Conclusion: We have sufficient evidence to reject the claim that LTCC Intermediate Algebra students get less than seven hours of sleep per night, on average.

6 0
3 years ago
PLS HELP 30 ISH POINTS
Nina [5.8K]

Answer:

this is my alt, btw. I'm taking these points back from myself before they get stolen

5 0
3 years ago
When a researcher asked 35 people if they liked a new brand of toilet paper; 22 said 'yes', 8 said 'no' and 5 were 'undecided'.
VARVARA [1.3K]
I guess maybe 5/35 because there are only 5 chances that you could get one of the 5 in the 35 people
6 0
3 years ago
Read 2 more answers
Use the grouping method to factor the polynomial below completely.<br> x - 3x² + 5x - 157
Levart [38]

Answer:

-3x^2+6x-157

Step-by-step explanation:

8 0
3 years ago
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