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IgorLugansk [536]
3 years ago
8

Helps me ASAP!!! I dont get it:)

Mathematics
1 answer:
algol133 years ago
3 0
The answer is 24 no need to worry!
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Find n(A) for the following set. <br> A={a,b,c,...,z}
MariettaO [177]

n(A) = 26

Solution:

Let us first define the cardinal number of the set.

Cardinal number of the set:

The number of distinct elements in a finite set is called its cardinal number. It is denoted as n(A).

Given set: A = {a, b, c, .... z}

We know that, there are 26 elements in the alphabet "a to z".

Number of elements in the set A = 26

Hence n(A) = 26.

5 0
3 years ago
Find the exact value of sin 105 degrees​
STALIN [3.7K]

Answer:

\frac{\sqrt{6}+\sqrt{2}}{4}

Step-by-step explanation:

I'm going to write 105 as a sum of numbers on the unit circle.

If I do that, I must use the sum identity for sine.

\sin(105)=\sin(60+45)

\sin(60)\cos(45)+\sin(45)\cos(60)

Plug in the values for sin(60),cos(45), sin(45),cos(60)

\frac{\sqrt{3}}{2}\frac{\sqrt{2}}{2}+\frac{\sqrt{2}}{2}\frac{1}{2}

\frac{\sqrt{3}\sqrt{2}+\sqrt{2}}{4}

\frac{\sqrt{6}+\sqrt{2}}{4}

4 0
3 years ago
Read 2 more answers
Explain how to write the expanded form when a number incudes a zero
goblinko [34]

Answer:

Since zero has no value, it does not need to be included when writing a number in expanded form.

Step-by-step explanation:

7 0
2 years ago
Helpppppppppppppppppppppplppoooooo
Komok [63]

Answer:

hope it helps you plz mark me brilliantest

Step-by-step explanation:

B

6 0
3 years ago
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Please help me jdjdjd
jeyben [28]
If you add Hillary to the friend count, that's 24. So there are 16 boys and 8 girls
8 0
3 years ago
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