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erik [133]
4 years ago
14

Seed are often treated with fungicides to protect them in poor draining, wet environments. A small-scale trial, involving five t

reated and five untreated seeds, was conducted prior to a large-scale experiment to explore how much fungicide to apply. The seeds were planted in wet soil, and the number of emerging plants were counted. If the solution was not effective and four plants actually sprouted, what is the probability that : a) all four plants emerged from treated seeds? b) three or fewer emerged from treated seeds? c) at least one emerged from untreated seeds?
Mathematics
1 answer:
love history [14]4 years ago
8 0

Answer:

c

Step-by-step explanation:

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12
Sidana [21]

Answer:

4

hours

i hope that helped

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A dose of a new pharmaceutical drug is decaying according to the half-life model f(t) = Ne-0.2174, where N is the dose
Rudiy27

Answer:

  14.7

Step-by-step explanation:

Perhaps your equation is ...

  f(t) = N·e^(-0.2174t)

We want f(6) = 4, so ...

  4 = N·e^(-0.2174·6) = N·e^-1.3044 ≈ 0.2713N

  N = 4/0.2713 = 14.7 . . . . milligrams

The dose amount was about 14.7 mg.

6 0
4 years ago
1. 3x + y = 11<br> 5x - y = 21
sergeinik [125]

Answer:

[4, -1]

Step-by-step explanation:

Using the Elimination Method:

3x + y = 11

5x - y = 21

__________

8x = 32

__ ___

8 8

x = 4 [Plug this back into both equations to get the y-coordinate of -1]; -1 = y

The <em>y</em>'s are already <em>additive</em><em> </em><em>inverses</em><em> </em>[result in 0], canceling each other out.

I am joyous to assist you anytime.

4 0
3 years ago
Find square root of 11+2 root 10
EastWind [94]

Answer:

11+²√10 question

Step-by-step explanation:

11+2 √10x√10÷√10

11+2x10÷√10

31÷√10 is ur answer sir pls mark brainliest

3 0
2 years ago
the area of a rectangular city park is 25/54 square miles. The length of the park is 5/9 mile. What is the width, in miles, of t
katrin2010 [14]
Area=Length×Width
Width=Area÷Length
So, the answer should be 25/54÷5/9=25/54×9/5=225/270=5/6 mills
Length=5/9 miles
Area=25/54 square miles
Width=5/6 miles

6 0
3 years ago
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