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3 years ago

#savesheikhjarrah Let’s all pray for Palestine ♥️

Mathematics

1 answer:

Y_Kistochka [10]3 years ago

3 0

Answer:

soi de perú NO INGLISH IS SPANISH

Step-by-step explanation:

JAJAJAJ

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Xavier Martinez took out a $5,000 loan at 7.5% interest for reconstructing his patio. His monthly payment on the 12-month loan w

Norma-Jean [14]

Paying off the entire loan = 12 * 437.26 = 5,247.12 
He paid 6 * 437.26 = 2,623.56 
He then paid 2,556.03

2,623.56 plus = 2,556.03 = 5,179.59 

 5,247.12 minus 5,179.59 =
67.53 the amount of money he saved.

3 0

4 years ago

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Consider the function f given by f(x)=x*(e^(-x^2)) for all real numbers x.

NISA [10]

Answer:

$\frac{\sqrt{\pi}}{4}$

Step-by-step explanation:

You are going to integrate the following function:

$g(x)=x*f(x)=x*xe^{-x^2}=x^2e^{-x^2}$ (1)

furthermore, you know that:

$\int_0^{\infty}e^{-x^2}=\frac{\sqrt{\pi}}{2}$

lets call to this integral, the integral Io.

for a general form of I you have In:

$I_n=\int_0^{\infty}x^ne^{-ax^2}dx$

furthermore you use the fact that:

$I_n=-\frac{\partial I_{n-2}}{\partial a}$

by using this last expression in an iterative way you obtain the following:

$\int_0^{\infty}x^{2s}e^{-ax^2}dx=\frac{(2s-1)!!}{2^{s+1}a^s}\sqrt{\frac{\pi}{a}}$ (2)

with n=2s a even number

for s=1 you have n=2, that is, the function g(x). By using the equation (2) (with a = 1) you finally obtain:

$\int_0^{\infty}x^2e^{-x^2}dx=\frac{(2(1)-1)!}{2^{1+1}(1^1)}\sqrt{\pi}=\frac{\sqrt{\pi}}{4}$

5 0

3 years ago

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Find the length of side x.

Maru [420]

26.2 is your answer

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3 years ago

At a zoo, 7 lizards ate 35 grams of insects in one

lapo4ka [179]

Answer 180 grams of insects

Explanation 7 •\• by 35 = 5 grams each/night.
36 x 5= 180 grams

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3 years ago

Find the volume of a sphere with a surface area of 2,123.72 square meters.

Hunter-Best [27]

V≈0.27
Surface area is 2

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3 years ago

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