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shutvik [7]
3 years ago
13

A meteorologist reports that the ratio of snowfall in January to total snowfall during the average winter is 2 to 5. If 34 inche

s have falled in January of the current year, find the predicted total snowfall for the entire winter.
Mathematics
1 answer:
I am Lyosha [343]3 years ago
8 0
First write out the proportions/ratios, and use x for the unknown number.
2:5 = 34:x
Then, you find out how much more 34 is from 2, so divide 34 by 2. 
The answer will be 17, which means, the proportions is 17 times of everything.
So to find out for the x, you multiply 5 by 17 since everything is 17 times more.
5 x 17 = 85
The final ratio will be:
2:5 = 34:85
We can say that 17 times more snow has snowed that year since comparing the January snowfall, it shows that 34 is 17 times more of 2. So to predict the total snowfall, we multiply the 5 by 17, since like I said before, the amount of snowfall is 17 times more than before. Therefore, 5 multiplied by 17 equals to 85. The predicted total snowfall for the entire year will be 85 inches.
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The true about the domain and the range of the function is:

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Step-by-step explanation:

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∵ (2)(6) = 12

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- By adding like terms

∴ f(x) = x² + 8x + 12

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Look to the attached figure

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∵ f(x) = x² + 8x + 12

∴ a = 1 and b = 8

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∴ k = f(-4)

∴ k = (-4)² + 8(-4) = 12 = 16 - 32 + 12

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∴ The vertex point of the parabola is (-4 , -4)

∵ The parabola is opened upward

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∴ The minimum value of f(x) is y = -4

∵ The domain of the function is the values of x

∵ The range of the function is the values of y corresponding to the

   values of x

∵ x can be any real numbers

∴ x ∈ R, where R is the set of real numbers

∴ The domain of f(x) is all real numbers

∵ The minimum value of f(x) is y = -4

∴ y can be any real number greater than or equal to -4

∴ y ≥ -4

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The true about the domain and the range of the function is:

The domain is all real numbers, and the range is all real  numbers

greater than or equal to -4

Learn more:

You can learn more about quadratic function in brainly.com/question/1332667

#LearnwithBrainly

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5 0
3 years ago
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