Need help with 18 and 19 25 points
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Answers: 2
Mathematics, 21.06.2019 19:00
In trapezoid abcd, ac is a diagonal and โ abcโ
โ acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.
Answers: 3
Mathematics, 21.06.2019 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2โ 11/4 xโ 7/4 and y=โ 7 /8 x^2+x+ 31/8 ?
Answers: 1
Mathematics, 21.06.2019 22:30
One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?
Answers: 1
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