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malfutka [58]
3 years ago
11

In farming, the relationship between precipitation during the growing season and crop yield is quadratic. The following table sh

ows the amount of rainfall (in inches) with corresponding soybean crop yields (in bushels per acre) for an agricultural region.
Rainfall Crop Yield

2.25 42.1

2.75 43.0

3.25 43.8

3.75 44.2

4.25 44.5

4.75 44.3

5.25 43.5

Use a quadratic regression calculator to write a quadratic function that provides a reasonable fit to this set of data. According to the function model, about how many bushels per acre of soybeans would you expect if there was 5 inches of rain during the growing season?


A.) 44.1 bushels per acre

B.) 45.5 bushels per acre

C.) 43.9 bushels per acre

D.) 44.5 bushels per acre
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
5 0

Answer:

walks dogs for 3 hours on Saturday and 4 hours on

Sunday. She calculates her total pay to be $57.75.

Which equation could be used to check the reasonableness of her total?

Step-by-step explanation:

jol'

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Please help me I really really need help
postnew [5]

Answer:

B) \sqrt{2} ÷ 2\sqrt{5}

Step-by-step explanation:

A→ 2\sqrt{5} ÷ \sqrt{5}

= \frac{2\sqrt{5} }{\sqrt{5} }

<u>→ </u><u>2</u><u> is a rational number</u>

B) → \sqrt{2} ÷ 2\sqrt{5}

=\frac{\sqrt{2} }{2\sqrt{5} }

=\frac{\sqrt{2} }{\sqrt{2}*\sqrt{2}*\sqrt{5}   }

= \frac{1}{\sqrt{10} }

<u>↑ is irrational number</u>

C) \frac{\pi }{2}÷ \pi

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=\frac{1}{2}

<u>↑ is a rational number</u>

D)5\pi ÷ \pi

= 5

<u>↑ is a rational number</u>

<u>So,</u><u> Option B</u><u> is your answer</u>

-----------------

hope it helps..

have a great day!!!

5 0
3 years ago
Find \cos(\alpha)cos(α)cosine, left parenthesis, alpha, right parenthesis in the triangle. Choose 1 answer: Choose 1 answer: (Ch
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Check Explanation

Step-by-step explanation:

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It is evident from the options provided that the right angled triangle is one with dimensions of 20, 21 and 29.

These three dimensions perfectly form a Pythagorean triple.

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From trigonometric relations, if α is an angle in the right angled triangle, cos α is given mathematically as

Cos α = (Adj/Hyp)

For this Pythagorean triple,

Hyp = hypotenuse side = 29

Adj = Adjacent side = 20 or 21, depending on the triangle's setup.

If the adjacent is 20,

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If the adjacent is 21,

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7 0
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