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laila [671]
2 years ago
9

Seventeen lines drawn in a plane, with no three concurrent and no two parallel, divide the plane into

Mathematics
2 answers:
stiks02 [169]2 years ago
4 0

Answer:

120

Step-by-step explanation:

Make a chart:

Lines:                  0   1    2   3  4   5   6

Closed regions: 0   0   0   1   3   6   10

Find the number of numbers using the formula:

\frac{first term + last term}{2} x 14 = \frac{2 + 15}{2} x 14

                                  = 8.5 x 14

                                  = 119

119 + 1 = 120

(add 1 because we didn't count the first line in the formula)

I hope this helps :)

alexdok [17]2 years ago
3 0
120 would most likely be your answer but
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Alan and Brian share a sum of money in the ratio 1 : 4.What fraction of the money does Alan receive?
Naya [18.7K]

Answer:

1/4 of total money

Step-by-step explanation:

pls mark brainliest

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2 years ago
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Plsease help me with this one plsease
Tanzania [10]
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2 years ago
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Genevieve wants to verify that negative x is the simplified expression of one-fifth (5 x minus 20) minus one-half (4 x minus 8).
mart [117]

Answer: -x

Apply Multiplicative Distribution Law:- 1/5 * 5x - 1/5 * 20 - 1/2 * 4x - 1/2 *(-8)

Determine the sign for multiplication or division: 1/5 * 5x - 1/5 * 20 - 1/2 * 4x + 1/2 * 8

Cross out the common factor: x - 1/5 * 20 - 1/2 * 4x + 1/2 * 8

Cross out the common factor: x - 4 - 1/2 * 4x + 1/2 * 8 - 4 - 2x + 1/2 * 8

Cross out the common factor: x - 4 - 2x + 1/2 * 8

Cross out the common factor:  x - 4 - 2x + 4

Reorder and gather like terms: (x - 2x) + (- 4 + 4)

Collect coefficients for the like terms: (1 - 2) * x + (- 4 + 4)

Calculate the sum or difference :  - x + (- 4 + 4)

The sum of two opposites equals 0: -x

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3 0
2 years ago
Find the area of a circle that has a radius of 14 feet. Approximate Π as 3.14. Round your answer to the nearest hundredth.
puteri [66]
Area of a circle = (pi)r^2

therefore: A = (3.14)(14^2)

A = 615.44 square feet
4 0
3 years ago
Have no clue on this please help
NemiM [27]

The answer would be D) dilated by a scale factor of 3

Proof :

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I hope this makes sense and helps.

6 0
3 years ago
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