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Ksivusya [100]
3 years ago
13

I need Helppppppppppppppp with this

Mathematics
2 answers:
amid [387]3 years ago
7 0

Answer:

Option A

Step-by-step explanation:

Jessica divides the ribbon in three parts out of which length of one part = 3\frac{1}{2} inches

Let the length of other two parts = x inches

Total length of whole ribbon = 12 inches

3\frac{1}{2}+x+x=12

3\frac{1}{2}+2x=12

2x=12-3\frac{1}{2}

2x=12-\frac{7}{2}

2x=\frac{24-7}{2}

2x=\frac{17}{2}

x=\frac{17}{4}

x=7\frac{1}{4} inches

Therefore, option A will be the answer.

OleMash [197]3 years ago
7 0

Answer:

I believe its A 4 1/4

Step-by-step explanation:

I got the same linkit quiz.

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erastovalidia [21]

Answer:

The exam can be answered with exactly 8 answers correct in 6435 ways.

Step-by-step explanation:

The order is not important.

For example, answering correctly the questions 1,2,3,4,5,6,7,8 is the same outcome as answering 2,1,3,4,5,6,7,8. So we use the combinations formula to solve this problem.

Combinations formula:

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

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

"There are 15 questions on an exam. In how many ways can the exam be answered with exactly 8 answers correct?"

Combinations of 8 questions from a set of 15. So

C_{15,8} = \frac{15!}{8!(15-8)!} = 6435

The exam can be answered with exactly 8 answers correct in 6435 ways.

5 0
3 years ago
12. (x3y6)-2 + (x2y4)-3
Galina-37 [17]
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7 0
4 years ago
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pantera1 [17]

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6 0
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Bobcat Park is a rectangular park with an area of 5 2/5 square miles.Its width is 1 11/25 miles.How long is the park?
ELEN [110]
I believe it is 3.75 miles. 5 2/5=5.4 and 1 11/25=1.44. 5.4/1.44=3.75.
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3 years ago
Now that you've figured out the formula for the area of acircle, A =Tr?, let's find the information we need tocalculate that are
satela [25.4K]

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Remember that the radius is half the diameter, so the radius is 4.5 feet.

<h2>Hence, the answer is 4.5 feet.</h2>
5 0
1 year ago
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