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Yanka [14]
3 years ago
7

Pleaseeehelp me !!!!

Mathematics
1 answer:
Volgvan3 years ago
8 0

Answer:

Go on to photo math it's good for equations

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Gina Chuez has considered starting her own custom greeting card business. With an initial start up cost of $1500, she figures it
Digiron [165]

1.70 - 0.45 = 1.25

1500 ÷ 1.25 = 1200

Gina must sell 1200 cards before she can make a profit

6 0
3 years ago
What are the roots of the quadratic equation below 2x^2-5x-1=0
PilotLPTM [1.2K]

Answer:

roots=(5±sqrt(33))/4

Step-by-step explanation:

roots=(-b±sqrt(b^2-4ac))/2a

roots=(-(-5)±sqrt(25+8))/(2*2)

roots=(5±sqrt(33))/4

roots=(5+sqrt(33))/4 and (5-sqrt(33))/4

7 0
2 years ago
Anita plans to give her husband 3 shirts for his birthday. She narrows the search to 3 shirts from a selection of 17 shirts at D
Lunna [17]

Using the combination formula, it is found that she can select the shirts in 775,200 ways.

The order in which the shirt are chosen is not important, hence, the <em>combination formula</em> is used to solve this question.

Combination formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by:

C_{n,x} = \frac{n!}{x!(n-x)!}

In this problem:

  • 3 shirts from a set of 17.
  • Then, 3 shirts from a set of 20.
  • They are independent, hence, to find the total, we multiply both combinations.

T = C_{17,3} \times C_{20,3} = \frac{17!}{3!14!} \times \frac{20!}{3!17!} = 680 \times 1140 = 775200

She can select the shirts in 775,200 ways.

To learn more about the combination formula, you can check brainly.com/question/25821700

5 0
2 years ago
????????????????????????????
frutty [35]

Answer:

B

Step-by-step explanation:

i took the same question hope this helps :D

5 0
3 years ago
Read 2 more answers
I need help on this and if you the first person to answer this correctly then I would mark you BRANILIST​​​
lesantik [10]

Answer:

60

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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