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tino4ka555 [31]
3 years ago
12

Correct answer to any or all of these?​

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
5 0
They are all correct
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The maximum speed of China’s CRH380A train is 4.873 × 102
Brrunno [24]

Answer:

The maglev train can reach a top speed of 431 km/h (268 mph).

Step-by-step explanation

7 0
3 years ago
It has been determined that 60% of the people in a certain midwest city who are responsible for preparing the evening meal have
natali 33 [55]

Answer:

Random sample, np \geq 10 and n(1-p) \geq 10, so yes, both conditions were satisfied.

Step-by-step explanation:

60% of the people in a certain midwest city who are responsible for preparing the evening meal have no idea what they are going to prepare as late as 4PM in the afternoon.

This means that p = 0.6

A recent survey was conducted from 1000 of these individuals.

This means that n = 1000

Also, a random sample, so the first condition was satisfied.

The sample size must be large (so that at least 10 or more successes and failures).

np = 1000*0.6 = 600 \geq 10

n(1-p) = 1000*0.4 = 400 \geq 10

So yes, both conditions were met.

4 0
3 years ago
Which of the following plantonic solids is also a cube?​
34kurt

Answer:

Hexahedron

Step-by-step explanation:

A cube is a regular hexahedron, as both the hexahedron and the cube have 6 faces, and a hexhedron can sometimes be a cube.

4 0
3 years ago
Show answer in lowest terms. 3 1 /4 - 1 3/16=
SpyIntel [72]
3 - 1 = 2
1/4 - 3/16 = 4/16 - 3/16 = 1/16

answer is : 2 1/16 (in mixed number) or 33/16 (in improper fraction)
4 0
3 years ago
The customer service department resolved 106 of 120 customer
Elanso [62]

Answer:

______________________________

106/120 = .8833 complaints per hour i think.

______________________________

4 0
3 years ago
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