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3 years ago

Please answer!!! I’m stuck on it and need help fast <3

Mathematics

1 answer:

asambeis [7]3 years ago

8 0

Answer: 2880

Explanation: First, multiply 40 and 4 together to find the value of h. This should get you to 160. Then plug in 160 into h in the equation e=18h. This multiplies 18 and 160 together. You will then get an answer of 2880.

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Determine the singular points of the given differential equation. Classify each singular point as regular or irregular. (Enter y

ludmilkaskok [199]

Answer:

Step-by-step explanation:

Given that:

The differential equation; $(x^2-4)^2y'' + (x + 2)y' + 7y = 0$

The above equation can be better expressed as:

$y'' + \dfrac{(x+2)}{(x^2-4)^2} \ y'+ \dfrac{7}{(x^2- 4)^2} \ y=0$

The pattern of the normalized differential equation can be represented as:

y'' + p(x)y' + q(x) y = 0

This implies that:

$p(x) = \dfrac{(x+2)}{(x^2-4)^2} \$

$p(x) = \dfrac{(x+2)}{(x+2)^2 (x-2)^2} \$

$p(x) = \dfrac{1}{(x+2)(x-2)^2}$

Also;

$q(x) = \dfrac{7}{(x^2-4)^2}$

$q(x) = \dfrac{7}{(x+2)^2(x-2)^2}$

From p(x) and q(x); we will realize that the zeroes of (x+2)(x-2)² = ±2

When x = - 2

$\lim \limits_{x \to-2} (x+ 2) p(x) = \lim \limits_{x \to2} (x+ 2) \dfrac{1}{(x+2)(x-2)^2}$

$\implies \lim \limits_{x \to2} \dfrac{1}{(x-2)^2}$

$\implies \dfrac{1}{16}$

$\lim \limits_{x \to-2} (x+ 2)^2 q(x) = \lim \limits_{x \to2} (x+ 2)^2 \dfrac{7}{(x+2)^2(x-2)^2}$

$\implies \lim \limits_{x \to2} \dfrac{7}{(x-2)^2}$

$\implies \dfrac{7}{16}$

Hence, one (1) of them is non-analytical at x = 2.

Thus, x = 2 is an irregular singular point.

5 0

3 years ago

Pls help!

Amiraneli [1.4K]

Answer:

Step-by-step explanation:

you multiply

7 0

3 years ago

Read 2 more answers

Ms.Sinnott has 7/12 m of string and she cuts the string into eight pieces how long are the new piece of string

Elina [12.6K]

Answer:

7/96 m

Step-by-step explanation:

7/12 ÷ 8 = 7/96

4 0

3 years ago

The area of a rectangle is 18 m² if the length is 6 m less than five times the width then find the dimensions of the rectangle r

oksano4ka [1.4K]

Answer:

Step-by-step explanation:

width = w

L = 5w - 6

w(5w - 6) = 18

5w^2 - 6w = 18

5w^2 - 6w - 18 = 0

Using the quadratic equation formula

x = 2.58997 and

x = -1.38997 This root cannot be. (No rectangle has a minus length.

w = 2.58997

L = 5*2.58997 - 6

L = 6.94985

w = 2.59

L = 6.95

3 0

3 years ago

PLEASE HELP IF CORRECT I WILL GIVE BRAINLIEST AND 5 STARS!

kotykmax [81]

1416 is the answer hope this helps and please give me brainliest

6 0

3 years ago