2 years ago

Cual es el valor de la operación ((f(g)(2)

Mathematics

1 answer:

lana [24]2 years ago

5 0

Answer:

2fg

Step-by-step explanation:

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Radium-226 has a half-life of 1620 years. for a 150 gram sample, how many grams will remain after 200 years?

VashaNatasha [74]

Ah, yes

if you start with P amount of something and the half life is h units (in years) and the time elapsed is t (in years) then the amount left is A

the equation is
$A=P(\frac{1}{2})^\frac{t}{h}$

so
given
h=1620
P=150
t=200
so
$A=150(\frac{1}{2})^\frac{200}{1620}$
$A=150(\frac{1}{2})^\frac{10}{81}$
use your calculator
A≈137.69781917515g
about 138grams left

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3 years ago

Twice the sum of two numbers is 24. if one number is 2 times larger than the other, what is the smaller of the two numbers?

Vikki [24]

2(x+y)=24
2x=y

Use substitution. If y=2x, than we can substitute 2x for it in the other equation, because x and y equal the same things in both equations.

So using that we get 2(x+2x)=24

SIMPLIFY
2(3x)=24

DISTRIBUTE
6x=24.

DIVIDE: x=4.

If we substitute x into the original equations we get x=4 and y=8. Those are your two numbers.

Have a nice day! :)

4 0

3 years ago

Find x if the area of the rectangle below is 124 square inches. WHAT IS THE

Tomtit [17]

Answer:

Step-by-step explanation:

(6x+1)4 = 124

6x+1 = 31

x = 5

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3 years ago

Find the measure of each interior angle of a regular 78-gon. Round to the nearest<br> tenth.

djverab [1.8K]

Answer:

yes

Step-by-step explanation:

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3 years ago

Two equations are given below:

ch4aika [34]

Rewrite the equations;
m+4n=8
m-n=-2

Eliminating m gives;
5n=10
n=2
Replacing for n in the first equation;
m+4(2)=8
m=8
Answer;
(0, 2)

6 0

3 years ago

Cual es el valor de la operación ((f(g)(2)​

Cual es el valor de la operación ((f(g)(2)