3 years ago

Please helpppppp please ?????????

Mathematics

1 answer:

geniusboy [140]3 years ago

8 0

Answer:

1. c

2. c

3. c

4. b

5. c

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Angles L and M are supplementary. What is the sum of

tatyana61 [14]

180 degree

Step-by-step explanation:

supplementary means anhke havinv sum of 180 degree

so sum to two supplemrntary angles is 180 drgree

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Nadya [2.5K]

Answer:

283.495

Step-by-step explanation:

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3 years ago

What is 1/3 + 1/2<br>*please help*

Tom [10]

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

Re-write with common denominator, in this case 6:

$\frac{1 \times 2}{3 \times 2}+\frac{1 \times 3}{2 \times 3}$

Add:
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4 years ago

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A single card is drawn from a standard 52-card deck. Let D be the event that the card drawn is a black card, and let F be the

Svetllana [295]

Answer:

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Step-by-step explanation:

Let

D be the event that the card drawn is a black card
F be the event that the card drawn is a 10 card
F' be the event that the card drawn is not a 10 card

The probability

$Pr(D\cup F')=Pr(D)+Pr(F')-Pr(D\cap F')\\$

Note that

$Pr(D)=\dfrac{26}{52}=\dfrac{1}{2}\\ \\Pr(F)=\dfrac{4}{52}=\dfrac{1}{13}\\ \\Pr(F')=1-\dfrac{1}{13}=\dfrac{12}{13}\\ \\Pr(D\cap F')=\dfrac{24}{52}=\dfrac{6}{13}$

So,

$Pr(D\cup F')=\dfrac{1}{2}+\dfrac{12}{13}-\dfrac{6}{13}=\dfrac{25}{26}$

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nata0808 [166]

Answer:

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Step-by-step explanation:

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