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Mashcka [7]
3 years ago
15

A box is filled with 9 red crayons, 5 blue crayons, and 8 yellow crayons. A crayon is chosen at random from the box. Find the pr

obability that it is a blue or a yellow crayon. Write your answer as a fraction in simplest form.
Mathematics
1 answer:
Neporo4naja [7]3 years ago
8 0

Answer: 13/22

Step-by-step explanation:

Number of red crayons = 9

Number of blue crayons = 5

Number of yellow crayons = 8

Total number of crayons = 9+5+8 = 22

The probability of selecting either ia blue or a yellow crayon will be:

= 5/22 + 8/22

= 13/22

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Y=2x^2+12x+14 in vertex form
balandron [24]

Answer:

y = 2(x + 3)² - 4

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Using the method of completing the square

y = 2x² + 12x + 14 ← factor out 2 from the first 2 terms

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To complete the square

add/subtract ( half the coefficient of the x- term)² to x² + 6x

y = 2(x² + 2(3)x + 9 - 9 ) + 14

  = 2(x + 3)² - 18 + 14

  = 2(x + 3)² - 4 ← in vertex form

4 0
3 years ago
Peter is overweight. He is 105 kg. His aim is to lose 500 g per week. If he manages this, how many weeks will it be until he is
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Answer:

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Step-by-step explanation:

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3 years ago
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salantis [7]

Answer:

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Step-by-step explanation:

Consider the common factors of both terms

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Thus the gcf of both terms is 2y, thus

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3 years ago
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If r is the midpoint of AB and AR=14, then AB=______
skelet666 [1.2K]

Answer:

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Step-by-step explanation:

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Hope this helps!

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GarryVolchara [31]

Answer:

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Step-by-step explanation:

i looked it up

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