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bazaltina [42]
3 years ago
11

Please help me with this question. ​

Mathematics
1 answer:
krek1111 [17]3 years ago
7 0

Answer:

Step-by-step explanation:

736

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Which quadrilaterals have parallel opposite sides? Select all that apply.
Brrunno [24]
Parallelogram square rectangle
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3 years ago
A study investigated whether price affects people's judgment. Twenty people each tasted six cabernet sauvignon wines and rated h
patriot [66]

Answer:

t=5.5080( to 3 d.p)

Step-by-step explanation:

From the data given,

n =20

Deviation= 34/20= 1.7

Standard deviation (sd)= 1.3803(√Deviation)

Standard Error = sd/√n

= 1.3803/V20 = 0.3086

Test statistic is:

t = deviation /SE

= 1.7/0.3086 = 5.5080

ndf = 20 - 1 = 19

alpha = 0.01

One Tailed - Right Side Test

From Table, critical value of t =2.5395

Since the calculated value of t = 5.5080 is greater than critical value of t = 2.5395, the difference is significant. Reject null hypothesis.

t score = 5.5080

ndf = 19

One Tail - Right side Test

By Technology, p - value = 0.000

Since p - value is less than alpha , reject null hypothesis.

Conclusion:

From the result obtained it can be concluded that ,the data support the claim that the mean rating assigned to the wine when the cost is described as $90 is greater than the mean rating assigned to the wine when the cost is described as $10.

5 0
3 years ago
Matt wants to play in the sand pit, and then try the swings, the slide, and the seesaw, in that order. If the units on the coord
Nataly [62]

Answer:

it should be 12

i think :)

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Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A train leaves at 17.22 and arrives at its destination at 18.14.
sattari [20]

Answer:

64.6 km/h

Step-by-step explanation:

18:14 = 18h 14'

1h = 60'

18h = 17h + 60'

18h14' = 17h + 60' ´14' = 17h 74'

then:

17h 74'

-17h 22'

= 0h 52'

the train travelled 56km at 52 minutes

56km/52minutes

1 hour = 60 minutes

52 minutes = 52/60 = 0.86667 hours

then:

56km/52minutes = 56km/0.86667hours

= 64.615 km/hours

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Neal estimated √50 by determining that the two perfect squares nearest 50 are 49 and 64. Select the two consecutive whole number
slavikrds [6]

Answer:

7 and 8

Step-by-step explanation:

5 0
3 years ago
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