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suter [353]
3 years ago
10

Marcus has a spinner with 3 sections, 2 blue sections , and 1 purple section. Match the event of landing on each color to the co

rrect probability
Mathematics
2 answers:
Oksi-84 [34.3K]3 years ago
8 0

Answer:

Blue: 2/3

Purple: 1/3

Step-by-step explanation:

You have a total of 3 possible sections.

For blue, we have 2 out of 3 sections.  The probability is 2/3.

For purple, we have 1 out of 3 sections.  The probability is 1/3.

Andrei [34K]3 years ago
8 0

Answer

66.66% blue 33.3% purple

Step-by-step explanation:

if marcus has three sections two of which are the same group then you take 100 and divide by 3 however since it cannot divide by 3 then the best possible answer is 99.9 so take this and dive it by 3 this gives 33.333333- now take that and multiply it by 2 since that would give it the same amount as two sections since the 33.33333- is 1/3 of the whole after multiplying it by 2 you get 66.66666- now this is 2/3 of the whole which represents the 2 blue sections and then subtracting the 99.99999- by the 66.666666- to find the 1/3 amount of 33.333333- which represents the purple

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What is the vertex of the graph of the function f(x) = x2 + 8x - 2?
vlabodo [156]

Answer:

Vertex is (-4, -18)

Step-by-step explanation:

f(x) = ax^{2} +bx +c

Let (h, k) be the vertex

An easy way to find h is to use the formula h = -b/2a

In your case where f(x) = x^{2} +8x - 2   a = 2 and b = 8

So, h =  -8/2(1) = -8/2 = -4

Substitue -4 in for x to find k

k = (-4^{2}) + 8(-4) - 2

  = (16) - 32 - 2

  = 16 - 32 - 2

  = -18

Vertex is (-4, -18)

Note:  Another way to find the vertex is to complete the square, but this can really be difficult in some cases

5 0
3 years ago
Solve for x 7(x+2) =6(x+5)
Luden [163]

Answer:

Step-by-step explanation:

7x + 14 = 6x + 30

x + 14 = 30

x = 16

6 0
3 years ago
Read 2 more answers
Sophie and Simon are peeling a pile of potatoes for lunch in the cafeteria. Sophie can peel all the potatoes by herself in 45 mi
tensa zangetsu [6.8K]
Short Answer: 18 minutes
Remark

The answer to this problem is less than the smallest time of the two people working together. that fact lets out C and D (38 minutes and 75 minutes). Now you have to choose 15 minutes and 18 minutes. There's a method. No guessing needed.

Givens
Let the time for Sophie = S
Let the time for Simon = M
Let the job to completion = 1 
S = 45 minutes
M = 30 minutes

Step One
Convert minutes to hours.
45 minutes = 45 / 60 = 3/4 hour = 0.75 hour
30 minutes = 30 / 60 = 1/2 hour = 0.50 hour

Step Two
Set up the Equation
The formula is a form of job / hour.
Let the time = t that they both have to work

job = 1 in these problems.
1/S + 1/M = 1/t
1/0.75 + 1/0.5 = 1/t

Solve
1 ÷ 0.75 = 1.33333
1 ÷ 0.5 = 2

1.3333 + 2 = 3.33333 
3.3333 = 1 / t                    Multlply both sides by t
3.3333*t = 1
t = 1 / 3.333333333
t = 0.3 of an hour


1 hour = 60 minutes
0.3 hours = x              Cross Multiply
x = 60 * 0.3
x = 18 minutes

Answer working together it took them 18 minutes  <<<<< 
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4 years ago
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Find the length of AB
ryzh [129]

Answer:

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3 years ago
The price of a mat is x USD from the start. Write an expression for the price:
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Answer:

Hello good evening friend

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