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4 years ago

Graph f(x) = 8•(1/2)^x

Mathematics

1 answer:

Lelu [443]4 years ago

4 0

Answer:

<h2>See the image.</h2>

Step-by-step explanation:

The given function is $f(x) = \frac{8}{2^{x} }$ . We need to graph it.

At x = 0, f(x) = 8.

At x = 1, f(x) = 4.

At x = 2, f(x) = 2.

$\lim_{x \to \infty} f(x) = 0$ . With the increasing value of x, f(x) will move towards 0.

Similarly, if x = -1, f(x) = 16.

At x = -2, f(x) = 32.

$\lim_{x \to -\infty} f(x) = \infty.$

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Answer:

D. 33.60

Step-by-step explanation:

A $40 shirt at a 20% discount would be $32. However, once a 5% tax is taken into account, the total cost would be $33.60.

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2 years ago

What is the simplified expression for 4 to the power of negative 3 multiplied by 3 to the power of 4 multiplied by 4 to the powe

Cloud [144]

Answer:

4/3

Step-by-step explanation:

You can simplify the exponent expression using exponent rules. The rules are:

A positive exponent is the number of times the base multiplies by itself.
A negative exponent is the number of times the base divides itself.
Multiplying same bases with exponents is simplified by adding the exponents.
Dividing same bases with exponents is simplified by subtracting the exponents.
A zero exponent always evaluates as 1.

The expression $\frac{4^{-3}3^44^2}{3^54^{-2}}$ can be simplified first using the negative exponent rule to move base with negative exponent to the other part of the fraction.

$\frac{4^{-3}3^44^2}{3^54^{-2}} = \frac{4^{2}3^44^2}{3^54^{3}}$

Now use the multiplication rule to simplify numerator and denominator.

$\frac{4^{2}3^44^2}{3^54^{3}} = \frac{4^{2+2}3^4}{3^54^{3}} = \frac{4^{4}3^4}{3^54^{3}}$

Finally, use the division rule to reduce the fraction.

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4 years ago

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