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Anestetic [448]
3 years ago
7

An arborist examine trees in an orchard to see if they were infected with a virus out of 450 trees 56% had the virus how many tr

ees were infected with the virus ​
Mathematics
1 answer:
RSB [31]3 years ago
7 0

Answer:

252 trees

Step-by-step explanation:

450 trees total

56% are infected

450 * .56 = 252 trees

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Factor completely, then place the factors in the proper location on the grid.
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4(x+5y)(x-3y)
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Name the sets of numbers to which -7/9 belongs
Arlecino [84]
Ok
the sets are
natural numbers (or counting numbers), this is like 1,2,3,4,5 etc

whole numbers, this is including 0, so 0,1,2,3,4,5,6 etc

integers, this includes the previoius set and negatives, so -3,-2,-1,0,1,2,3,4,5 etc

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5 0
3 years ago
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3 years ago
E is the midpoint of DF, DE = 2x + 4, and EF = 3x + 1. Find DE, EF, and DF.
Agata [3.3K]
When there is a midpoint in a line segment, the two segments that are then produced have to be equal. So that means that because E is a midpoint of DF, DE=EF.
Set up the equation.
DE=EF
2x+4=3x+1
Then solve for x.
x=3
Then plug it back in the equation to find DE and EF.
DE=2x+4=2(3)+4=10
Because DE=EF then EF is also 10.
DF is made from the addition of DE and EF so DF is twice EF.
DF= 20

DE= 10, EF= 10, DF= 20

Hope this helps.
8 0
3 years ago
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