Mathematics, 18.07.2019 13:00 Lhuckabee
How is “twice the sum of a number and seven is three times the number.” written out as an equation?
Answers: 1
Mathematics, 21.06.2019 15:30
The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?
Answers: 2
Mathematics, 21.06.2019 18:30
Complex numbers multiply √-4 * √-25 and show all intermediate steps. alternative notation is sqrt(-4) * sqrt(-25).
Answers: 1
Mathematics, 22.06.2019 01:00
Rewrite the polynomial -9x5 + 36x4 + 189x3 in factored form.
Answers: 1
Mathematics, 22.06.2019 06:00
Sound travels about 750 miles per hour. a) suppose it takes about 1.5 seconds to hear the echo. how far away is the canyon wall, in feet? for this i got 825 ft b) suppose you stand 1,925 feet from the canyon wall and sound the horn. how long will it take to hear the echo? (i'm stuck on this)
Answers: 1
How is “twice the sum of a number and seven is three times the number.” written out as an equation?...
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