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2 years ago

I need help please help me answer this it’s due in like 15 minutes

Mathematics

1 answer:

Svetach [21]2 years ago

4 0

Answer:

If 8 Treasure Chests per 4 Hours so

12 Treasure Chests for 6 Hours

10 treasure Chests for 5 Hours

Step-by-step explanation:

If 8 Chests every 4 Hours, then 2 Chests is every 1 hour. Count up each hour, add 2 chests.

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Which sequence matches the recursive formula?

goldenfox [79]

Hello:
an = 2an-1 + 5, where a1 = 5
n =2 a2 = 2a1 +5 = 2(5)+5 = 15
n =3 a3 = 2a2 +5 = 2(15)+5 = 35
n =4 a4 = 2a3 +5 = 235)+5 = 75
answer :
B)
5, 15, 35, 75, ...

4 0

3 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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Fill in the missing factor to show that 2/3 equivalent to 8/12.

Studentka2010 [4]

Answer:

4/4

Step-by-step explanation:

2/3 * what = 8/12

Multiply the top and bottom by 4/4

2/3 *4/4 = 8/12

3 0

3 years ago

Please answer this will mark brainliest

AlexFokin [52]

Between 2 and 3, should be somewhere before .5

7 0

3 years ago

HELPPPPPPP me with #7

Anna007 [38]

(10x+y)(100x^2-10xy+y^2)

5 0

3 years ago

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