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Answer:
What is the picture explaining?
Step-by-step explanation:
Like what is the quiestion and the choices you didnt explain.
one+four+three=eight pens.
Two pens are selected without replacement.
Need probability of selecting two black pens.
Probability of selecting first black pen is four out of eight, 4/8
Probability of selecting second black pen is three remaining black pens out of the remaining 7 pens = 3/7
Probability of both events happening is the product of the two probabilities, according to the multiplication rule.
Therefore probability of selecting two black pens out of the initial eight pens
=(4/8)(3/7)=3/14=0.2143 (to the ten-thousandth).
Rounding to the hundredth will give you the required answer.
Answer: You will need 78 acres of pastureland
Step-by-step explanation: Take 130(cows) and divide it by 100 to give you 1.3, multiply that by 60 to get 78 acres in total.