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malfutka [58]
3 years ago
11

2) On Monday, the stock rose 6.25 points. Wednesday, the stock dropped 9 points. At the end of the week, the stock dropped anoth

er 3.5 points. What was the stock's value?
Mathematics
1 answer:
Darina [25.2K]3 years ago
5 0

Answer:

-6.25

Step-by-step explanation:

6.25 - 9= -2.75.

-2.75-3.5= -6.25

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V=lwh

V=8×12×6=576 ft³

Answer: V=576 ft³

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Find the measure of angle 8<br> help please
Yuki888 [10]

Answer:

99 degrees

Step-by-step explanation:

angle 8 = 99 degrees because corresponding or 'f shaped' angles are equal

4 0
2 years ago
Read 2 more answers
Bottles of purified water are assumed to contain 250 milliliters of water. There is some variation from bottle to bottle because
marshall27 [118]

Answer:

We accept H₀ we don´t have evidence of differences between the information from the sample and the population mean

Step-by-step explanation:

From data and excel (or any statistics calculator) we get:

X = 249,6 ml         and       s  1,26 ml

Sample mean and sample standard deviation respectively.

Population mean  μ₀  = 250 ml

We have a normal distribution but we dont know the standard deviation of the population. Furthermore we have a two tails test since we are finding if the sample give us evidence of differences ( in both senses ) when we compare them with the amount of water spec ( 250 ml )

Our test hypothesis are: null hypothesis       H₀    X = μ₀

Alternative Hypothesis                                 Hₐ     X ≠ μ₀

We also know that sample size is 8  therefore df  =  8 - 1   df = 7 , with this value and the fact that we are required to test at α = 0,05 ( two tails test)

t = 2,365

Then we evaluate our interval:

X ± t* (s/√n)   ⇒   249,6 ±  2,365 * ( 1,26/√8 )

 249,6 ±  2,365 * (1,26/2,83)  ⇒ 249,6 ±  2,365 *0,45

249,6 ± 1,052

P [ 250,652 ; 248,548]

Then the population mean 250 is inside the interval, therefore we must accept that the bottles have being  fill withing the spec. We accept H₀

7 0
3 years ago
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otez555 [7]

Answer:

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Step-by-step explanation:

5 0
1 year ago
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Find the geometric mean between each pair of numbers.<br> 12 and 2.4
Scorpion4ik [409]

Answer:

about 5.37

Step-by-step explanation:

Geometric mean is

\sqrt[n]{x_1(x_2)(x_n)...} }

So square root of 12(2.4)

square root of 28.8 is

about 5.366563146

or 5.37

3 0
2 years ago
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