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Bond [772]
4 years ago
6

Write each expression using a positive exponent. ("/" means division)("^" means to the power of) 9^-4

Mathematics
1 answer:
never [62]4 years ago
3 0

Answer:

\frac{1}{9^4}.

Step-by-step explanation:

9^{-4}

= \frac{1}{9^4}

= \frac{1}{9 * 9 * 9 * 9}

= \frac{1}{81 * 81}

= \frac{1}{6561}

= 0.0001524157903.

Hope this helps!

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lianna [129]

Answer:

See graph

Step-by-step explanation:

We want to graph y=\frac{1}{2}\cos(2x+60\degree) on the interval -360\degree \le x \le 360\degree

We need to plot some few points

(-30\degree,\frac{1}{2})

(-15\degree,\frac{\sqrt{3}}{4})

(0\degree,\frac{1}{4})

(15\degree,0)

(30\degree,-\frac{1}{4})

(45\degree,-\frac{\sqrt{3}}{4})

(60\degree,-\frac{1}{2})

(75\degree,-\frac{\sqrt{3}}{4})

(90\degree,-\frac{1}{4})

(105\degree,0)

(120\degree,\frac{1}{4})

(135\degree,\frac{\sqrt{3}}{4})

(150\degree,\frac{1}{2})

This will give us one cycle.

We then use the pattern to complete the graph on the interval

-360\degree \le x \le 360\degree

6 0
3 years ago
Jessica has three types of dvds and two types of cds as shown in the tree diagram if she grabs a disc at random what is probabil
iren2701 [21]
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lukranit [14]

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3 0
3 years ago
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mariarad [96]

Answer:

\frac{\left(5x+1\right)\left(3x+1\right)}{2x-y}

Step-by-step explanation:

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add on 2x -y as the denominator of the fraction

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