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Jobisdone [24]
3 years ago
7

Sarah describes the following situation: When fertilizer was added to one plant and nothing was added to the other plant, there

was a noticeable difference in the color of the leaves of the plants.
Which of the following best describes the situation?
(a)this an example of correlation, because the fertilizer causes the plant to change color
(b)this is an example of causation, because the aplication of fertilizer caused the plant to improve its leaf color
(c)this is an example of correlation, because one plant is being fertilized and the other is not
(d)this is an example of causation, because the leaves on both plants change color
Mathematics
2 answers:
Nataly [62]3 years ago
6 0

Answer:

b i took the test

Step-by-step explanation:

aalyn [17]3 years ago
5 0

Answer:( b ) this is an example of causation, because the aplication of fertilizer caused the plant to improve its leaf color

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What is the nth term rule of the linear sequence below?
butalik [34]

Answer:

( 3n-8)

Step-by-step explanation:

so the given sequence is AP

where common difference is +3

nth term for this AP will be

(-5)+(n-1).(3) = 3n-8

3 0
2 years ago
Find a vector equation and parametric equations for the line through the point (7,4, 5) and parallel to the vector 3i 2j-k .
aleksley [76]

Answer: vector equation r = (7+3t)i + (4+2t)j + (5 - 5t)k

parametric equations: x = 7 + 3t; y = 4 + 2t; z = 5 - 5t

Step-by-step explanation: The vector equation is a line of the form:

r = r_{0} + t.v

where

r_{0} is the position vector;

v is the vector;

For point (7,4,5):

r_{0} = 7i + 4j + 5k

Then, the equation is:

r = 7i + 4j + 5k + t(3i + 2j - k)

<u><em>r = (7 + 3t)</em></u><u><em>i</em></u><u><em> + (4 + 2t)</em></u><u><em>j </em></u><u><em>+ (5 - 5t)</em></u><u><em>k</em></u>

The parametric equations of the line are of the form:

x = x_{0} + at

y = y_{0} + bt

z = z_{0} + ct

So, the parametric equations are:

<em><u>x = 7 + 3t</u></em>

<em><u>y = 4 + 2t</u></em>

<em><u>z = 5 - 5t</u></em>

4 0
3 years ago
Expand and simpilify (x+2)(x+1)
Cerrena [4.2K]

Answer:

x^2+3x+2

Step-by-step explanation:

(X+2)(x+1)

Is x^2+x+2x+2

x^2+3x+2

4 0
3 years ago
How many ways can two names be chosen from 76 in a raffle if only one entry per person is allowed
Fantom [35]

2850

good luck have a nice day

7 0
2 years ago
In a college parking lot, the number of ordinary cars is larger than the number of sport utility vehicles by 42.9%. the differen
fenix001 [56]
Let
 x = number of common cars
 y = number of suvs
 we can write the following system of equations
 x-y = 12
 x = 1.429y
 Solving the system we have
 x-y = 12
 1.429y-y = 12
 and (1,429-1) = 12
 y = (12) / (1,429-1) = 27.97202797
 then,
 x = 1429 * (27.97202797)
 x = 39.97202797
 answer
 The number of suvs in the parking lot is 28
6 0
3 years ago
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