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2 years ago

True or False please ❗️

Mathematics

2 answers:

Murljashka [212]2 years ago

4 0

Answer:

true

Step-by-step explanation:

aev [14]2 years ago

4 0

Answer:

It might be a trick question but if not, it is false.

Step-by-step explanation:

If you look closely you can see that L' is 4 units above the x-axis and not 3.

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Find the function of which is the solution of 36y"-48y'-48y=0 with initial conditions y1(0)=1. y1'(0)=0

lilavasa [31]

Answer:

$y=\frac{1}{4} e^{2x}+\frac{3}{4} e^{-\frac{2}{3}x }$

Step-by-step explanation:

Let, $D=\frac{d}{dx}$

Now, us simplify the given differential equation and write it in terms of D,

$36y''-48y'-48y=0$

or, $3y''-4y'-4y=0$

or, $(3D^2-4D-4)y=0$

We have our auxiliary equation:

$3D^2-4D-4=0$

or, $(3D+2)(D-2)=0$

or, $D=2, - \frac{2}{3}$

Therefore our solution is,

$y=Ae^{2x}+Be^{- \frac{2}{3}x}$

and, $y'=2Ae^{2x}-\frac{2}{3}Be^{\frac{2}{3}x }$

Applying the boundary conditions, we get,

$A+B=1$

$2A-\frac{2}{3}B=0$

Solving them gives us,

$A=\frac{1}{4} ,B=\frac{3}{4}$

Hence,

$y=\frac{1}{4} e^{2x}+\frac{3}{4} e^{-\frac{2}{3}x }$

4 0

3 years ago

A farmer has a rectangular garden plot surrounded by 200 ft of fence. find the length and width of the garden if its area is 127

Sergio [31]

I was stuck on the same thing in my class test. I ended up failing but if I get the answers to it I’ll totally send them to you

5 0

3 years ago

Please help with problem 25, part a and b Algebra 1, In the attachment.

erica [24]

The equation to represent the number of people that can attend the event will be 18500 +/- 1200.

<h3>How to calculate the value?</h3>

Based on the information, equation to represent the number of people that can attend the event will be 18500 +/- 1200.

The maximum number will be:

= 18500 + 1200

= 19700

The minimum number will be:

= 18500 - 1200

= 17300

Learn more about equations on:

brainly.com/question/13763238

#SPJ1

4 0

1 year ago

Please help!<br> 10<br> ∑ 2i-9<br> i=3

pentagon [3]

$\sum\limits_{i=3}^{10}(2i-9)=2(3)-9+2(4)-9+2(5)-9+2(6)-9+2(7)-9\\\\+2(8)-9+2(9)-9+2(10)-9\\\\=6-9+8-9+10-9+12-9+14-9+16-9+18-9+20-9\\\\=90-72=18$

6 0

3 years ago

- Last week Shelley earned $60.00 in tips waitressing. This week she earned $72.00.

castortr0y [4]

Answer: 20%

Step-by-step explanation:

Rule of 3, let's put the money on the left and the percentage on the right of the chart.

$\frac{60.00}{72.00}=\frac{100}{x}$

$x=\frac{72*100}{60} \\x=120$

Calculate the difference.

$120-100=20$

5 0

3 years ago

Read 2 more answers