Mathematics, 26.09.2021 14:00 dxpebetty64
Giải phương trình vi phân cấp 2 ạ
b) y"+ (m+ a + 2)y- (m+ a + 3)y= (x + a + 3)cos(m+3)x
c) y"+ (n + 2)y (n + 3)y= (m+b)x - (a + n)
Answers: 2
Mathematics, 21.06.2019 15:40
In what form is the following linear equation written y=9x+2
Answers: 1
Mathematics, 21.06.2019 18:10
Josh has a rewards card for a movie theater he receives 15 points for becoming a rewards card holder he earns 3.5 points for each visit to the movie theater he needs at least 55 points to earn a free movie ticket which inequality can josh use to determine x, the minimum number of visits he needs to earn his first free movie ticket.
Answers: 1
Mathematics, 21.06.2019 21:00
Asequence has its first term equal to 4, and each term of the sequence is obtained by adding 2 to the previous term. if f(n) represents the nth term of the sequence, which of the following recursive functions best defines this sequence? (1 point) f(1) = 2 and f(n) = f(n − 1) + 4; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2n; n > 1 f(1) = 2 and f(n) = f(n − 1) + 4n; n > 1 f(1) = 4 and f(n) = f(n − 1) + 2; n > 1 i will award !
Answers: 1
Mathematics, 21.06.2019 21:40
In a survey of 1015 adults, a polling agency asked, "when you retire, do you think you will have enough money to live comfortably or not. of the 1015 surveyed, 534 stated that they were worried about having enough money to live comfortably in retirement. construct a 90% confidence interval for the proportion of adults who are worried about having enough money to live comfortably in retirement.
Answers: 3
Giải phương trình vi phân cấp 2 ạ
b) y"+ (m+ a + 2)y- (m+ a + 3)y= (x + a + 3)cos(m+3)x
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