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wolverine [178]
3 years ago
14

What is the probability of PICKING A RED CHALK, if there red,green,blue,orange,and white chalks (TWO EACH) in a basket ?

Mathematics
2 answers:
Zepler [3.9K]3 years ago
4 0

Answer:

2/10   = 1/5.

Step-by-step explanation:

There are 2 reds in 10 chALKS.

Debora [2.8K]3 years ago
4 0

Answer:

The probability would be 2/10 or simplified as 1/5

Step-by-step explanation:

This would be as the numerator represents the number of red chalks and the denomenator would represent the total.

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Answer:

2x^2 = 6x - 5.

-x^2 - 10x = 34.

These have only complex roots/

Step-by-step explanation:

3x^2 - 5x = -8

3x^2 - 5x + 8 = 0

There are complex roots if the discriminant  9b^2 - 4ac) is negative.

Here the discriminant D = (-5)^2 - 4*-5*8 = 25 + 160

This is positive so the roots are real.

2x^2 = 6x - 5

2x^2 - 6x + 5 = 0

D = (-6)^2 - 4*2*5 =  36 - 40 = -4

So this has no real roots only complex ones.

12x = 9x^2 + 4

9x^2 - 12x + 4 = 0

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- Real roots.

-x^2 - 10x = 34

x^2 + 10x + 34 = 0

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7 0
3 years ago
What is another way to write 54?
never [62]

Answer:

None of the above.

5 0
3 years ago
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Select the graph that represents two quantities in a proportional relationship.
julia-pushkina [17]

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Step-by-step explanation:

6 0
3 years ago
Evaluate the expression:–|20| + |5|
Svetradugi [14.3K]
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Steps:
Apply absolute rule: |a| = a, a >/ 0
|20| = 20
= -20+5
Apply absolute rule: |a| = a, a >/ 0
|5| = 5
= -20+5
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-Hamilton1757
3 0
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A circular city park has a sidewalk directly through the middle that is 111 - feet long. If each bag of fertilizer covers 50 squ
scZoUnD [109]

Answer:

Step-by-step explanation:

The circular city park has a sidewalk directly through the middle that is 111 - feet long. This means that the diameter of the park is 111 feet.

The formula for determining the the area of a circle is expressed as

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Where

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π is a constant whose value is 3.14

From the information given,

Diameter = 111 feet

Radius = diameter/2 = 111/2 = 55.5 feet.

Area of park = 3.14 × 55.5² = 9671.985 feet²

If each bag of fertilizer covers 50 square feet, then the number of bags needed is

9671.985/50 = 193.44 bags

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