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3 years ago

Help ASAP! 20 points given if correct!

Mathematics

1 answer:

max2010maxim [7]3 years ago

6 0

Answer:

y = 1

Step-by-step explanation:

The point (2, 1) would partition the line segment BA into a 3:2 ratio. When partitioning a line segment, you must start from the first point B and make your way towards A. Since there is 9 spaces between B and A, you can count 3 from B, then 2 from A, 3 from B, then 2 more from A to get your point that partitions the directed line segment.

~Hope this helps!~

(Also I would like to add that the method used in this problem may not always be able to solve similar problems that may require a different approach.)

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Can someone please help !!!!!!!!!!!!!!!!

Yuliya22 [10]

Answer:

u=10

Step-by-step explanation:

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3 years ago

Read 2 more answers

A sample of students from an introductory psychology class were polled regarding the number of hours they spent studying for the

Anni [7]

Answer:

$8.68,13.16$

Step-by-step explanation:

Hint- First we have to calculate the mean and standard deviation of the sample and then applying formula for confidence interval we can get the values.

Mean of the sample is,

$\mu=\dfrac{\sum _{i=1}^{24}a_i}{24}=\dfrac{262}{24}=10.92$

Standard deviation of the sample is,

$\sigma =\sqrt{\dfrac{\sum _{i=1}^{24}\left(x_i-10.92\right)^2}{24-1}}=5.6$

The confidence interval will be,

$=\mu \pm Z\dfrac{\sigma}{\sqrt{n}}$

Here,

Z for 95% confidence interval is 1.96, and n is sample size which is 24.

Putting the values,

$=10.92 \pm 1.96\cdot \dfrac{5.6}{\sqrt{24}}$

$=10.92 \pm 2.24$

$=8.68,13.16$

Confidence interval is used to express the degree of uncertainty associated with a sample.

95% confidence interval means that if we used the same sampling method to select different samples and calculate an interval, we would expect the true population parameter to fall within the interval for 95% of the time.

5 0

3 years ago

65 - 2x ≥ 150, whats the answer!!!

Sidana [21]

Answer:

x <= -42.5

Step-by-step explanation:

65 - 2x >= 150

-2x >= 150 - 65

-2x >= 85

2x <= -85

x <= -85/2