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mrs_skeptik [129]

2 years ago

13

In the expression 2x-15, what is the variable being used ?

1 answer:

erma4kov [3.2K]2 years ago

6 0

Isn't x the variable?

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the half-life of uranium -238 is 4.5 × 10 to the power of 9 years. The half-life of uranium-238 than that of uranium-234

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allochka39001 [22]

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2 years ago

7 - r/8 - 3d <br><br><br><br> Variables <br><br> r=32 and d= 2

satela [25.4K]

The required value if r = 32 and d = 2 is -3

Given the expression

$7-\frac{r}{8} - 3d$

Substituting the given variables

r = 32

d = 2

The expression becomes

$= 7-\frac{32}{8} - 3(2)\\= 7 - 4 - 6\\= 3 - 6\\= -3$

Hence the required value is -3

Learn more here: brainly.com/question/17499155

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2 years ago