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4 years ago

Evelyn drink 8 glasses of water a day which is 56 glasses of water in a week

Mathematics

1 answer:

miss Akunina [59]4 years ago

6 0

Yes that is correct.

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What is the inverse of the function f(x) = x – 12?

valina [46]

Inverse functions are always the opposite of course therefore, f^-1(x)=x+12

4 0

3 years ago

PLEASE HELP If f(x) = 2x-1 + 3 and g(x) = 5x - 9, what is (f-g) (x)

Anton [14]

Answer:

2^(x-1) -5x +12

Step-by-step explanation:

f(x) = 2^(x-1) + 3

g(x) = 5x - 9

(f-g) (x) = 2^(x-1) + 3 - ( 5x-9)

Distribute the minus sign

2^(x-1) + 3 - 5x+9

Combine like terms

2^(x-1) -5x +12

3 0

4 years ago

Obtain the general solution of<br> y ln x ln y dx + dy = 0

oksano4ka [1.4K]

Dy/dx = -y inx iny

(y in x in y) dx + dy = 0

(y in x in y ) dx = - dy

(in x )dx = - (1/ y in y) dy

you just need to integrate both sides

Hope this helps

4 0

4 years ago

Given the following exponential function, identify whether the change represents

Allushta [10]

Answer:

decay, 6%

Step-by-step explanation:

0.94 < 1

1 - 0.94 = 0.06

3 0

3 years ago

Explain why a geometric series with a ratio between zero and one converges and how you find the sum.

Alex Ar [27]

Let $S_n$ be the $n$ th partial sum of a geometric sequence with common ratio $r$ and first term $a$ . So the sequence is $\{a,ar,ar^2,\cdots\}$ , and $S_n$ is

$S_n=a+ar+ar^2+\cdots+ar^{n-2}+ar^{n-1}$

Multiplying both sides by $r$ gives

$rS_n=ar+ar^2+ar^3+\cdots+ar^{n-1}+ar^n$

and subtracting $rS_n$ from $S_n$ gives

$S_n-rS_n=a+(ar-ar)+(ar^2-ar^2)+\cdots+(ar^{n-1}-ar^{n-1})-ar^n$
$(1-r)S_n=a(1-r^n)$
$S_n=a\dfrac{1-r^n}{1-r}$

If $0$ , then $r^n\to0$ as $n\to\infty$ and so the sum approaches

$\displaystyle\lim_{n\to\infty}S_n=\dfrac a{1-r}$

6 0

3 years ago

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