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3 years ago

I need help pizzz ASAP

Mathematics

1 answer:

vredina [299]3 years ago

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I’m on confused on what you have to do?

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Identify any common angles and sides.

nadezda [96]

Answer:

the correct answer would be option 4, since both triangle ACD and triangle ECB

8 0

2 years ago

2. Four pieces of candy are drawn at random from a bag containing five orange pieces and seven brown pieces.

alexandr402 [8]

Answer:

a) $12C4 = \frac{12!}{4! (12-4)!}= \frac{12!}{4! 8!}=\frac{12*11*10*9*8!}{4! 8!}= 495$ ways

b) $5C2 = \frac{5!}{2! (5-2)!}= \frac{5!}{2! 3!}=\frac{5*4*3!}{2! 3!}= 10$ ways

c) $7C2 = \frac{7!}{2! (7-2)!}= \frac{7!}{2! 5!}=\frac{7*6*5!}{2! 5!}= 21$ ways

Step-by-step explanation:

Combinatory means combination or arrangement of different elements.

If we have n total elements and we want to find in how many ways we can select x we can use this general formula:

$nCx= \frac{n!}{x! (n-x)!}$

Where $n! = n *(n-1)!$

a. How many different ways can four pieces be selected from the 12 colored pieces?

For this case we have:

$12C4 = \frac{12!}{4! (12-4)!}= \frac{12!}{4! 8!}=\frac{12*11*10*9*8!}{4! 8!}= 495$ ways

b. How many different ways can two orange pieces be selected from five orange pieces?

For this case we have:

$5C2 = \frac{5!}{2! (5-2)!}= \frac{5!}{2! 3!}=\frac{5*4*3!}{2! 3!}= 10$ ways

c. How many different ways can two brown pieces be selected from seven brown pieces?

For this case we have:

$7C2 = \frac{7!}{2! (7-2)!}= \frac{7!}{2! 5!}=\frac{7*6*5!}{2! 5!}= 21$ ways

6 0

4 years ago

5. Alex bought two hots dogs, fries, and a water at the food truck. The hot dogs were

Citrus2011 [14]

Answer:

2.60

Step-by-step explanation:

4.70 hotdogs

fries 1.25

water 2.60= 8.55-10=1.45

4 0

3 years ago

Two numbers whose sum is 54 and whose difference is 4

kkurt [141]

29 and 25. 29 + 25 = 54 and 29 - 25 = 4

8 0

3 years ago

Read 2 more answers

Joseph just changed his cable television plan to include on demand movies for $2.95 each. The charge for the basic cable passage

mel-nik [20]

$x-number\ of\ movies\\\\24.95+2.95x=39.7\\2.95x=39.7-24.95\\2.95x=14.75\ \ \ \ \ \ |:2.95\\x=5\\\\He\ watched\ 5\ movies.$

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3 years ago