3 years ago

I really need some help I don't understand ;-;

Mathematics

1 answer:

Olenka [21]3 years ago

4 0

im sorry i dont know how to help

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Use Euler’s method to estimate the value of y(20). Use a step size of ∆x = 5. Please fill out the remainder of the chart complet

crimeas [40]

Answer:

y(20)=14,322

Step-by-step explanation:

We need to solve the equation:

$dy/dx=0.4xy$

with initial point

$y(0) = 2$

with incerments

$\Delta x=h=5$

By Euler's method, we have:

$y(x+h)=y(x)+h*f'(x,y)$

We start with the initial point

$y(5)=y(0)+5*f'(0,2)=2+5*(0.4*0*2)=2$

And we continue until we reach the value for y(20)

$y(10)=y(5)+5*f'(5,2)=2+5*(0.4*5*2)=2+20=22\\\\\\y(15)=y(10)+5*f'(10,22)=22+5*(0.4*10*22)=22+440=462\\\\\\y(20)=y(15)+5*f'(15,462)=462+5*(0.4*15*462)=462+13,860\\\\y(20)=14,322$

4 0

3 years ago

Find the length of an arc that has central angle, 50 degrees, and radius, 3.

kotegsom [21]

First we find the circumference
c=2pir
r=3
2pi3
6pi=c

then find out how much of the circle is 50 degreese
50/360=5/36
6pi times 5/36=5pi/6=aprox 2.62

it should be 5pi/6

8 0

4 years ago

Nicole has x marbles. Together we have 44 marbles. How many marbles will I have if I lose 1/4 of my marbles ?

zubka84 [21]

Answer:

I have:

33 - 3N/44 marbles

N = marbles of Nicole

Step-by-step explanation:

Nicole + me = 44 marbles

m = 44 - N

m = me

N = Nicole

if i lose 1/4 of my marbles

4/4 - 1/4 = 3/4

i have left:

3/4 of my marbles

then:

m = 3(44-N)/4

m = 3*44/4 + 3*-N/44

m = 33 - 3N/44

I have finally:

33 - 3N/44

5 0

4 years ago

NEED ANSWER ASAP!! ! 15 points! Is the set of multiples of 5 closed under division? Explain why or provide a counterexample if n

Stels [109]

I would say B to your answer. # ask my brother in high school
~JZ

8 0

3 years ago

Given: -16 = m/5 -18; <br> Prove: m=10

spayn [35]

Answer:

I have proven m is 10. have a good day and give brainliest if possible.

3 0

3 years ago