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3 years ago

HELP 50 POINTS!!!!

Mathematics

2 answers:

zhuklara [117]3 years ago

7 0

The minimum cost y = $78. 

 
x = 12 cakes to yield minimum cost.

motikmotik3 years ago

7 0

1) y = 0.5x^2 - 12x + 150 axis of symmetry x = -b/(2a) x = 12/1 = 12 y = 0.5(x^2 - 24x + 144) - 72 + 150 y = 0.5(x - 12)^2 + 78 vertex = (12, 78) 2) The vertex is the minimum point, and the minimum cost y = $78. 3) x = 12 cakes to yield minimum cost.

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Which statement best describes why liquid water exists on Earth?

Vikki [24]

Complete Question:

Which statement best describes why liquid water exists on earth?

A. Earth experiences comet crashes and volcanic eruptions.

B. Earth experiences a strong magnetic field and lunar tides.

C. Earth has moderate temperatures and a strong gravitational force.

D. Earth has hydrogen bonds with the sun

Correct Answer:

Earth has a moderate temperature and strong gravitational force. This is the reason for existence of liquid water on Earth.

Step-by-step explanation:

Liquid water has the chemical formula of H₂O. So it is composed of mainly hydrogen and oxygen molecules with the present of different materials present in it based on the place it is located. As the water molecules are bonded by weak van der waals bond, it can be easily broken with the boiling point of 100 °C.

Thus, the existence of liquid water is possible in moderate temperature. Also the strong gravitational force of Earth helps to keep the liquid water stable in Earth. Thus, the strong gravitational force and the moderate temperature condition of Earth is responsible for liquid water existence on Earth.

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3 years ago

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Lubov Fominskaja [6]

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Step-by-step explanation: hope it helps

5 0

3 years ago

4.5(8-x)+36=102-2.5(3x+24) show step by step how to solve please.

romanna [79]

Expand

simplify 36 - 4.5x + 36 to -4.5x + 72

simplify 102 - 7.5x - 60 to -7.5x + 42

add 7.5x to both sides

simplify -4.5x + 72 + 7.5x to 3x + 72

subtract 72 from both sides

simplify 42 - 72 to -30

divide both sides by 3

simplify 30/3 to 10

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3 years ago

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nadya68 [22]

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Step-by-step explanation:

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3 years ago

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Marianna [84]

Answer:

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Step-by-step explanation:

First you want to find the least common denominator, which in this case would be 15. If you multiply 2/5 by 3, you get 6/15 which is less than 7/15

6 0

2 years ago

Read 2 more answers