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anzhelika [568]
3 years ago
14

Explain why each is either true or false.

Mathematics
1 answer:
Scorpion4ik [409]3 years ago
8 0

Answer:

Step-by-step explanation:

1.

True as angle on the circumference is half the angle at the center.

2.False ,tangent is perpendicular to radius or diameter at the point of contact.

3. True,tangent is perpendicular to radius at the point of contact.

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HELP ASAP PLEASE!!! worth 20 points!!
lukranit [14]
No, because the height of the boat is 2.1+8.7=10.8
after the boat is lifted, it’s 1.3 feet above the ground in which is addition to the total height the boat will take up. 10.8+1.3=12.1 feet.
4 0
4 years ago
Pls help I don’t understand
FrozenT [24]

Answer:

667 tiles

Step-by-step explanation:

To find the number of pavers, divide the total area of the patio by the area of each paver.

\text{Number of paver= $\dfrac{1800}{2.7}$}

                           = \dfrac{1800*10}{2.7*10}\\\\=\dfrac{18000}{27}\\\\= 667

7 0
3 years ago
What is the square root of 2 ?
Ivanshal [37]

Answer:


Step-by-step explanation:

1.414213562 or 1.4 rounded to the nearest tenth.

6 0
4 years ago
Read 2 more answers
the demand for a product for the last six years has been 15, 15, 17, 18, 20, and 19. The manager wants to predict the demand for
Marta_Voda [28]

Answer and explanation:

Given : The demand for a product for the last six years has been 15, 15, 17, 18, 20, and 19. The manager wants to predict the demand for this time series using the following simple linear trend equation : tr_t = 12 + 2t

To find : What are the forecast errors for the 5th and 6th years?

Solution :

Data : 15, 15, 17, 18, 20, and 19.

The simple linear trend equation is given as, tr_t = 12 + 2t

For t = 5 years

tr_t = 12 + 2(5)

tr_t = 12 +10

tr_t = 22

Observed tr_t = 20

Predicted tr_t = 22

Forecast error = Observed – Predicted = 20 – 22 = -2

Absolute forecast error = |-2| = 2 .

For t = 6 years

tr_t = 12 + 2(6)

tr_t = 12 +12

tr_t = 24

Observed tr_t = 19

Predicted tr_t = 24

Forecast error = Observed – Predicted = 19 – 24 = -5

Absolute forecast error = |-5| = 5.

7 0
4 years ago
Which shape will result from taking a cross section of the tetrahedron through the points shown?
Svetach [21]

Answer:

the anwer is a triangle as it is shown below.

5 0
2 years ago
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