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babunello [35]
4 years ago
11

Please answer this question now

Mathematics
1 answer:
mr Goodwill [35]4 years ago
8 0

Answer:

Measure of arc CD = 112°

Step-by-step explanation:

Since quadrilateral ABCD is a cyclic quadrilateral,

m∠A + m∠C = 180°

129° + m∠C = 180°

m∠C = 180° - 129°

m∠C = 51°

Since, m(arc BD) = 2(m∠C) [Since measure of the arc is double of its inscribed angle]

                           = 2(51°)

                           = 102°

Since, m(arc BD) + m(arc CD) + m(arc BC) = 360°

102° + m(arc CD) + 146° = 360°

m(arc CD) = 360° - (102° + 146°)

                = 112°

Therefore, measure of arc CD is 112°.

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Simplify the expression show your work
Vitek1552 [10]
Answer:
It looks like ur doing complex conjugates sooooo the answer is 21 - 12i

They way you show work is

(3-4i)(1+5i) - (2-i) <—— use foil method on first 2 parentheses

= 3 + 11i - 20i ^2 - 2 + i ( remember i^2 = -1)

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4 0
3 years ago
A sprinter ran a race in 11 seconds. What is the domain of this graph?
lina2011 [118]

Answer:

The correct option is A. Real number from 0 to 11  

Step-by-step explanation:

Domain is defined as the all possible values of the variable x for which the function is defined.

Now, for the given graph the x-axis represents the time in seconds.

So, we need to find all the possible values of time for which the distance is covered or for which the function is defined.

Given that : The sprinter ran a race in 11 seconds.

And the initial time is 0 seconds

So, The value of t lies between 0 to 11

Thus, Domain : All real numbers 0 to 11

Therefore, The correct option is A. Real number from 0 to 11

3 0
3 years ago
Read 2 more answers
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Scilla [17]
9 X 60 = 540 minutes
6 0
3 years ago
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I need help with the answer
solmaris [256]

Answer:

Its the last option

y = 1488.33x + 23800 ; $172,600.

Step-by-step explanation:

The slope of the trend line = (median value for 2000 - median value for 1940) / 60

= 89300 / 60

= 1488.33.

So the equation is 1488.33x + 23,800

Estimate for 2040

is 1483.33* 100 + 23800

= 172,600.

5 0
4 years ago
What is 45 over 2 in decimals ?
Kobotan [32]

Answer:

22.5

Step-by-step explanation:

I know because I just got it right on a test.....

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