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Alenkinab [10]
3 years ago
5

Using the quadratic formula to solve x2 + 20 = 2x, what are the values of x?

Mathematics
1 answer:
Andru [333]3 years ago
5 0

Answer:......................................

C

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What is the area of this figure?
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Answer:

112 in2

Step-by-step explanation:

6 x 4 / 2 + 10 x 10 = 24 / 2 + 100

12 + 100 = 112 in2

Hope that helps!

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What is your strategy for graphing a linear equation? Do you think you can use the same strategy to graph a quadratic equation?
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Given the functions f(x)=1/x−3+1 and g(x)=1/x+4+3 .
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4 years ago
Find the measure of a<br> A. 40<br> B. 25<br> C. 50<br> D. 12.5
Thepotemich [5.8K]

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3 0
3 years ago
Let U represent the set of people in a certain community who were asked if they subscribe to an information source.
sleet_krkn [62]

Answer:

b) ( N c ∩ D ) ∪ ( N ∩ D c )

Step-by-step explanation:

Let's see each option:

a) N ∪ D

This includes those who likes both, so this is not correc.t

b) ( N c ∩ D ) ∪ ( N ∩ D c )

Nc is the complement of N. That is those who do not subscribe to news magazine. Intensected with D, those are who do not subscribe to the news magazine but do to the daily informer. By the same logic, the second intersection are those who do subscribe to news magazine but not to the daily informer. This is the correct answer

c) N c ∩ D

This includes only those who subscribe to the daily informer but not to the news maganize. It also needs those who subscribe to the news magazine but not to the daily informer.

d) ( N ∩ D )c

This also involves those who do not subscribe to any of these news sources.

e) ( N c ∪ D ) ∩ ( N ∪ D c )

Wrong... Intersection of those who subscribe to the daily informer but not the news magazine and those who subscribe to the news magazine but not to the daily informer. This is the empty set.

5 0
3 years ago
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