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3 years ago

For the set A={4}, determine n (A)

Mathematics

1 answer:

4vir4ik [10]3 years ago

4 0

A={4},
the group set has only one element in it

so n (A)=1

I hope that helps!

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liberstina [14]

Answer:

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Step-by-step explanation:

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3 years ago

9/10 of Allien races think invading earth is a bad idea . What percent of alien races think invading earth is a bad idea

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90% of alien races think invading earth is a bad idea.

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3 years ago

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Which of the following is a solution of 4x2 = − 9x − 4?

nignag [31]

Get all on one side
add 9x+4 both sides
4x^2+9x+4=0
use quadratic formula
in form
ax^2+bx+c=0
x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$

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b=9
c=4

x= $\frac{-9+/- \sqrt{9^{2}-4(4)(4)} }{2(4)}$
x= $\frac{-9+/- \sqrt{81-64} }{8}$
x= $\frac{-9+/- \sqrt{17} }{8}$
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aprox
x=-1.64039 or -0.6096

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4 years ago

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Write a complete two-column proof for the following information given

rosijanka [135]

Statement Reason

1. AB = x + 16 1. Given

BC = 4x + 11

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2. AB + BC = AC 2. Segment Addition Postulate

3. x + 16 + 4x + 11 = 77 3. Substitution Property

4. 5x + 27 = 77 4. Simplification (added like terms)

5. 5x = 50 5. Subtraction Property of Equality

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4 years ago

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Answer:

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3 years ago