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aliina [53]
2 years ago
8

The sum of twice a number and half the number is 10.help pls :"​

Mathematics
1 answer:
Fiesta28 [93]2 years ago
5 0

Answer:

4

Step-by-step explanation:

Let x = the number

2x + (1/2)x = 10

(5/2)x = 10     Multiply both sides by 2/5

x = 4

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Which statements accurately describe the function f(x) = 3(16)^3/4? Check all that apply.
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Answers:

These are the statements that apply:

The initial value is 3.

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Explanation:

1) Given expression:

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b) The initial value is 48?

Not, as it was already proved that it is 3.

c) The domain is x > 0?

No, because the domain of the exponential functions is all the Real numbers.

d) The range is y > 0?

That is correct, the exponential function is continuous, and monotonon increasing.

The limit when x → - ∞ is zero, but y never reaches zero, and the limit when x → ∞ is + ∞, meaning that the range is y > 0.

e) The simplified base is 12?

This is how you simplify the base:

3(16)^{\frac{3}{4} x}=3{{(16}^{(3/4)})}^x=3(16^{3/4}})^{x}=3((2^4)^{3/4})^x=3(2^3)^x=3(8)^x

Which shows that the simplified base is 8 (not 12).

f) The simplified base is 8?

Yes; this was just proved.

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