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solniwko [45]
3 years ago
7

Solve the matrix equation

Mathematics
1 answer:
o-na [289]3 years ago
8 0
The answer to your <span>matrix equation is [6  2]
                                                             [6 -6]</span>
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Safety regulations state that roller coasters cannot operate safely in heavy rains. Throughout the day, ride operators measure t
Tju [1.3M]

Answer:

Type I error:

a. The rainfall is minimal enough to operate safely, and the ride is shut down.

Type II error:

d. The rainfall is too heavy to operate safely, and the ride continues to operate.

Step-by-step explanation:

In this case:

The null hypothesis (H0) states that mean rainfall is minimal

The alternative hypothesis (H1) states that mean rainfall is heavy.

A type I error occurs if one rejects the null hypothesis when it is actually true.

In this case; if the rainfall is minimal enough to operate safely and the ride is shut down is an example of Type I error because the null hypothesis is true and it is rejected.

A type II error occurs if one does not reject the null hypothesis when it is false, that is one accept the null hypothesis when it is false.

In this case; the null hypothesis is false and it is accepted is an example of type II error. So, the rainfall is too heavy to operate safely (means null hypothesis is false) and the ride continues to operate (means the null hypothesis is accepted when it is false).

5 0
4 years ago
A grade 7 class is going on a field trip to the Science Centre. The cost of the bus is $250. It costs $10 per student for admiss
fgiga [73]

Answer:

1270

Step-by-step explanation:

1270

8 0
3 years ago
Read 2 more answers
Bill drove his car at a constant speed while on a trip. Kevin drove his car at a different constant speed while on the same trip
Step2247 [10]
I thought to say the second sentence because it says that he’s going at a different constant speed but he doesn’t say compared to who... I’m leaning more to the last sentence.
What do you think?
7 0
3 years ago
What is 4c+2c+6? I can’t figure this out with my daughter
earnstyle [38]

Answer:

6c+6

Step-by-step explanation:

4c+2c+6

4+2 equals 6 and add the c but since on is with a letter and one is not you can't add them so your answer stays as 6c+6

5 0
4 years ago
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An antenna stands on top of a 160 Ft building. From a point on the ground 118 Ft from the base of the building the angle of elev
Dafna1 [17]

Answer:

28.8 ft

Step-by-step explanation:

SOH CAH TOA reminds you that ...

Tan = Opposite/Adjacent

The height to the top of the antenna is opposite the angle of elevation, and the distance to the building is adjacent. So, we have ...

tan(58°) = (160 ft +antenna height)/(118 ft)

(118 ft)·tan(58°) = 160 ft + antenna height . . . . . . . multiply by 118 ft

188.8 ft - 160 ft = antenna height = 28.8 ft . . . . . . subtract 160 ft, evaluate

The height of the antenna is 28.8 ft above the top of the building. (The total height of building + antenna is 188.8 ft.)

7 0
4 years ago
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