Mathematics, 09.04.2021 17:50 iamabeast51
A student wants to measure the height of a tree. From a point on the ground 10 feet away from the base of the tree, the angle of elevation to the top of the tree is 65° as shown. The diagram is not drawn to scale.
Answers: 2
Mathematics, 21.06.2019 18:00
Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares
Answers: 1
Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Mathematics, 21.06.2019 22:00
Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.
Answers: 2
Mathematics, 21.06.2019 23:00
According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)
Answers: 1
A student wants to measure the height of a tree. From a point on the ground 10 feet away from the ba...
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