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PilotLPTM [1.2K]
3 years ago
13

Three-fourths of a research team worked in a lab while one-fourth of the team worked near a pond. Of the researchers who worked

near the pond, 14% collected insects. What is the probability that a randomly chosen researcher worked near the pond and collected insects
Mathematics
1 answer:
Lisa [10]3 years ago
8 0

Answer:

3.5%

Step-by-step explanation:

In this case, the final probability would be the product of the two probabilities that the plating shows us:

First probability would be:

We are told that three quarters of the equipment (3/4) in the laboratory and the other quarter (1/4) near the pond, we are interested in the latter, that is, the probability is 1/4 = 0.25

Second probability:

We are told that 14% collected insects, therefore it would be 0.14

The final product is the question they ask us:

0.25 * 0.14 = 0.035

Which means that the joint probability is 3.5%

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KatRina [158]

Answer:

(3x+2)^2+1

Step-by-step explanation:

(f°g)(x) =g(f(x)) =g(3x+2)=(3x+2)^2 +1

5 0
4 years ago
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40 calls in 20 hours=__calls in 10 hours
Ronch [10]

Answer:  20 calls

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4 years ago
A system of two linear equations has an infinite number of solutions. How is this possible?
Rudiy27
A<span> system of linear equations</span><span> means two or more linear equations.
</span>A system of two linear equations has an infinite number of solutions is the rarest case and it only happens when both the lines are same.
For example,
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5 0
3 years ago
[HELP PLEASE ALGEBRA] <br><br> Would the answer only be B?
Salsk061 [2.6K]
Hello,

|x+4|=3x-5
if x+4>=0 then
          |x+4|=x+4
          x+4=3x-5
          2x=9
            x=9/2
else
    x+4<0 : x<-4
    |x+4|=-(x+4)
     -(x+4)=3x-5
    -x-4=3x-5
    4x=1
    x=1/4 : to exclude since x<-4
end if


Only one solution : x=9/2
ANSWER B.
7 0
3 years ago
In ABC, the measure of sides c is 3.9 cm If DEF is a dilation ABC with a scale factor of 2.5 what is the measure of side f
White raven [17]

Answer:

F = 9.75cm

Step-by-step explanation:

Given

In ABC;

C = 3.9cm

Dilation = 2.5

Required

Determine side F

In the given question;

DEF is a dilation of ABC

Comparing both triangles side by side,

Side F is a direct dilation of side C and this is calculated as follows

F = Dilation * C

F = 2.5 * 3.9cm

F = 9.75cm

3 0
4 years ago
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