Mathematics, 27.11.2019 12:31 jay4881
In a study conducted at virginia tech on the development of ectomycorrhizal, a symbiotic relationship between the roots of trees and a fungus, in whichminerals are transferred from the fungus to the trees and sugars from the trees to the fungus, 20 northern red oak seedlings exposed to the fungus pisolithus tinctoruswere grown in a greenhouse. all seedlings were planted in the same type of soil and received the same amount of sunshine and water. half received no nitrogen atplanting time, to serve as a control, and the other half received 368 ppm of nitrogen in the form nano3. the stem weights, in grams, at the end of 140days were recorded as follows: no nitrogen nitrogen0.32 0.260.53 0.430.28 0.470.37 0.490.47 0.520.43 0.750.36 0.790.42 0.860.38 0.620.43 0.46construct a 95% confidence interval for the difference in the mean stem weight between seedlings that receive no nitrogen and thosethat receive 368 ppm of nitrogen. assume the populations to be normally distributed with equal variances.
Answers: 3
Mathematics, 21.06.2019 16:00
Leo has b boxes of pencils. each box contains 6 pencils. he has a total of 42 pencils. the equation that represents this situation the value of b that makes the equation true the first one is b+6=42,6b=42,b=42+6,or 42b=6 the second one are 7,836 48
Answers: 3
Mathematics, 21.06.2019 19:00
Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?
Answers: 1
Mathematics, 21.06.2019 20:30
Find the solution(s) to the system of equations. select all that apply y=x^2-1 y=2x-2
Answers: 2
Mathematics, 21.06.2019 20:40
How is the equation of this circle written in standard form? x2 + y2 - 6x + 14y = 142 a) (x - 3)2 + (y + 7)2 = 200 b) (x+ 3)2 + (y - 7)2 = 200 (x - 6)2 + (y + 14)2 = 142 d) (x+6)2 + (y- 14)2 = 142
Answers: 1
In a study conducted at virginia tech on the development of ectomycorrhizal, a symbiotic relationshi...
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