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masha68 [24]
3 years ago
8

To make the color purple, Jamal's art teacher instructed him to mix equal parts of red paint and blue paint. To make a different

shade of purple, the ratio of red paint to blue paint is 2:1. What does the ratio 2:1 mean?
Mathematics
1 answer:
Reptile [31]3 years ago
6 0

Answer:

Two parts red paint to one part blue.

Step-by-step explanation:

An example would be 2/3 cup red paint mixed with 1/3 cup blue.

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ozzi

Answer:

The ball will hit the ground in 1.33 s if no one touches it. The equation has 2 real solutions.

Step-by-step explanation:

The ball will hit the ground when its height is equal to 0 meters, therefore using this value in the expression and solving for "t" will give us the correct solutions.

h = -4.9*t^2 + 5*t + 2\\\\-4.9*t^2 + 5*t + 2 = 0\\\\t_{1,2} = \frac{-5 \pm \sqrt{5^2 - 4*(-4.9)*(2)}}{2*(-4.9)}\\\\t_{1,2} = \frac{-5 \pm \sqrt{64.2}}{-9.8}\\\\t_{1,2} =\frac{-5 \pm 8.0125}{-9.8}\\\\t_1 = \frac{-5 - 8.0125}{-9.8} = 1.33 \text{ s}\\\\t_2 = \frac{-5 + 8.0125}{-9.8} = -0.3 \text{ s}

The ball will hit the ground in 1.33 s if no one touches it. The equation has 2 real solutions.

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3 years ago
Fully explain why an inefficient resource allocation leads an economy to produce at a point inside its production possibilities
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Production possibilities frontier, PPF, is defined as a representation of the point at which a country’s economy is most efficiently producing its goods and services. Efficient production means allocating its resources in the best way possible.
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The points in the PPF shifts outward. The more efficient production is the more the PPF shifts outward. With this in mind, any point found inside the PPF means that there is inefficient resource allocation. If the PPF shifts inward, it means that the efficiency production is regressing and available resources are not fully used to its potential which will lead to a downward turn of the economy. 


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I say A. because all the sides are the same.
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3 years ago
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