3 years ago

Ms. Nailor's daughter received $25

Mathematics

1 answer:

IrinaK [193]3 years ago

7 0

The correct answer is $35

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Help Plz !!!

coldgirl [10]

The answer is A i think

7 0

2 years ago

Consider the initial value problem:

Inessa [10]

Answer:

$\left \{ {{u'=v} \atop {v'=5v-6u-5\sin(2t)}} \right. \\u(0)=-5;u'(0)=2$

Step-by-step explanation:

The given initial value problem is;

$y''-5y'+6y=-5\sin(2t)---(1)\\y(0)=-5,y'(0)=2$

Let

$u(t)=y(t)----(2)\\v(t)=y'(t)----(3)$

Differentiating both sides of equation (1) with respect to $t$ , we obtain:

$u'(t)=y'(t)---(4)\\ \\\implies u'(t)=v(t)---(5)$

Differentiating both sides of equation (2) with respect to $t$ gives:

$v'(t)=y''(t)----(6)$

From equation (1),

$y''=5y'-6y-5\sin(2t)\\y''=5v(t)-6u(t)-5\sin(2t)\\\implies v'(t)=5v(t)-6u(t)-5\sin(2t)----(7)$

Putting t=0 into equation (2) yields

$u(0)=y(0)\\\implies u(0)=-5$

Also putting t=0 into equation (3)

$u'(0)=y'(0)\\u'(0)=2$

The system of first order equations is:

$\left \{ {{u'=v} \atop {v'=5v-6u-5\sin(2t)}} \right. \\u(0)=-5;u'(0)=2$

3 0

3 years ago

A statistical survey found that 20% of cars are red, and 10% are electric cars. It was further discovered that of all cars that

Flauer [41]

Yes is red .............

5 0

3 years ago

Jacadi is setting up a tent. Each section of a tent pole is

Ghella [55]

Answer:

12 feet

Step-by-step explanation:

know that 4 sections =1 tent pole
1 yard = 3 feet
multiply the number of sections (4) by their length (3)
12 feet equal 1 tent pole
(ﾉ◕ヮ◕)ﾉ*:･ﾟ✧

8 0

3 years ago

Please help me.... THX ☺️

RideAnS [48]

3.6, can I have Brainly

7 0

2 years ago

Read 2 more answers