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Trava [24]
3 years ago
12

A botanist created a linear model to predict plant height from soil acidity (pH level) for a certain type of plant. The slope of

the model was 2.5 centimeters per pH level, the standard deviation of the sample of plant heights
was 4 centimeters, and the standard deviation of the soil acidities was 1 pH level. What is the value of the correlation coefficient?
A
0.015
(B) 0.10
c. .25
d. 0.625
E
1.60​
Mathematics
1 answer:
Igoryamba3 years ago
5 0

Answer:

The answer is D. 0.625

Step-by-step explanation:

2.5=r(4/1)

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Answer:

everyone will have 15 dogs each

Step-by-step explanation:

dogs:

1+2+3+4+5=15

humans:

54+38+3+1+4=100

100x15=1500 <<<how many dogs there are in total

1500%100=15 <<<how many each person will get if u add all the dogs and divide them evenly for each person

3 0
2 years ago
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What is the standard form of -9+8x=-10y
Nitella [24]
<span><span>8x</span>+<span>10y</span></span>=<span>9

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7 0
3 years ago
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Erin recycles milk bottles, soda cans, and newspapers. If the following items are in the trash bin, what percent of the items ca
MakcuM [25]

Answer:

recyclble materials include Milk bottles, news papaers and soda cans

the rest is compost

20 items is the total

13 are recycble

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multiply by 100

and answer is

<h2><u><em>B.65%</em></u></h2>

Step-by-step explanation:

6 0
3 years ago
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What is the volume of a hemisphere with a radius of 3 cm, rounded to the nearest tenth of a cubic centimeter?
Kaylis [27]

Formula: V = (2/3) π r 3.

Radius is 3cm.

So, now we can plug it in to solve for the volume.

V = (2/3) π 3^3

First, let's multiply 3^3.

3^3 = 27

Then, 27 x π = 84.82

After, multiply by 2/3.

84.82 x 2/3 = 56.55

Lastly, round 56.55 to the nearest tenth of a cubic centimeter.

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Therefore the volume of a hemisphere with a radius of 3cm is 56.6cm^3.

8 0
3 years ago
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1. m – 7 &lt; 6 A) m &lt; –1 B) m &gt; 1 C) m &lt; 13 &lt;---------------------- D) m &lt; –13 2. x + 4.5 ≥ 5.5 A) x ≥ 10 B) x ≥
ikadub [295]
1) m - 7 < 6
 Add 7 to the both sides, 
m - 7 + 7 < 6 + 7
m < 13

So, Option C is your answer for this part.

2) x+4.5 ≥ 5.5
Subtract 4.5 from both sides, 
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So, Option B is your answer for this part.

3) p +12 > 9
Subtract 12 from the both sides, 
p > -3

So, Option D is your answer for this part.

4) x - 5 ≥ 9
So, Option A is your answer for this part

Hope this helps!

6 0
3 years ago
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