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Vika [28.1K]
3 years ago
10

To investigate the relationship between yield of potatoes and level of fertilizer application, a researcher divides a field into

eight plots of equal size and applies differing amounts of fertilizer to each. The yield of potatoes in pounds and the amount of fertilizer in pounds are recorded for each plot. The data are as follows:
Fertilizer (pounds), x Yield (pounds), y
1 25
1.5 31
2 27
2.5 28
3 36
3.5 35
4 32
4.5 34
Find the prediction equation for the regression of yield on fertilizer. Round values to four decimal places.
a. ˆy=24.4524+2.3810x
b. ˆy=27.6073+1.3872x
c. ˆy=22.1023+2.9840x
d. ˆy=25.1523+2.1511x
Mathematics
1 answer:
Ber [7]3 years ago
6 0
So what does it want you to what’s the equation
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Please help me with this problem
sineoko [7]

Answer:

4

Step-by-step explanation:

\frac{ {3x}^{2} -2x + 7}{2x+5}  \\  \frac{3( - 1) {}^{2}  - 2( - 1) + 7}{2( - 1) + 5 }  \\  \frac{3 + 2 + 7}{ - 2 + 5}  \\  \frac{12}{3}  = 4

7 0
3 years ago
Answer please i need help with this
stellarik [79]

\qquad\qquad\huge\underline{\boxed{\sf Answer}}

Let's evaluate ~

\qquad \sf  \dashrightarrow \: \dfrac{1}{3 {}^{ - 2}   \times {x}^{ - 4} \times  {y}^{2}  }

plug in the values :

\qquad \sf  \dashrightarrow \: \dfrac{1}{3 {}^{ - 2}  \times  {3}^{ - 4}  \times { - 1}^{2}  }

\qquad \sf  \dashrightarrow \: \dfrac{1}{3 {}^{ - 6}  {}^{ } {}^{}  }

\qquad \sf  \dashrightarrow \: {3}^{6}

\qquad \sf  \dashrightarrow \:729

Therefore, B is the Correct choice ~

・ .━━━━━━━†━━━━━━━━━.・

5 0
2 years ago
Read 2 more answers
Lines and m are parallel. Lines and are transversals. What is m<1 if m<4 =65 degrees ? Justify your answer.
Taya2010 [7]

angle 1 and angle 4 need to = 180

angle 1 = 180-65

angle 1 = 115 degrees

3 0
3 years ago
Plz help<br>find the value of x​
gayaneshka [121]

Answer:

x^{\circ}=70^{\circ}

Step-by-step explanation:

Lines MR and PQ are parallel. Continue the line MR up to the intersection with the line NQ. Denote the point of their intersection as A.

Consider triangle AMN. In this triangle,

  • m\angle ANM=40^{\circ} - given;
  • m\angle NMA=180^{\circ }-150^{\circ}=30^{\circ} - angles RMN and NMA are supplementary angles;

So, (as the sum of all interior angles add up to 180°)

m\angle NAM=180^{\circ}-40^{\circ}-30^{\circ}=110^{\circ}

Angles NAM and MAQ are supplementary angles, then

m\angle MAQ = 180^{\circ}-110^{\circ}=70^{\circ}

Angles MAQ and AQP are alternate interior angles, so they are congruant and

x^{\circ}=70^{\circ}

6 0
3 years ago
The sum of a number and six times its reciprocal is 10. Find the number​
Andreas93 [3]

Answer:

two solutions work: x = 5 + \sqrt{19} and x = 5 - \sqrt{19}

Step-by-step explanation:

x + 6 ( 1/x ) = 10

x^2 + 6 = 10x

x^2 - 10x + 6 = 0

x = 5 + \sqrt{19}, 5 - \sqrt{19}

6 0
3 years ago
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