Mathematics, 14.04.2021 01:50 vbodbodlhviprw2954
Select the correct answer.
What is the solution set of y = x2 + 2x + 7 and y = x + 7?
A.
{(0, 7), (-1, 6)}
B.
{(0, 7), (-7, 0)}
C.
{(0, 7), (1, 8)}
D.
{(-2, 0), (4, 0)}
Answers: 2
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Adriveway is 40 yards long about how many meters long is it
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Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15
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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 22:10
Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.
Answers: 1
Select the correct answer.
What is the solution set of y = x2 + 2x + 7 and y = x + 7?
A...
A...
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