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Andrews [41]
3 years ago
6

Which expression is equivalent to the expression 3^7x3^-4

Mathematics
1 answer:
kykrilka [37]3 years ago
5 0

Answer:

3^7 * 3^(-4) = 3^(7 - 4) = 3^3 = 27

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What is the solution set to the inequality
creativ13 [48]

(4x - 3)(2x - 1) \geqslant 0 \\ \Leftrightarrow \begin{cases}4x - 3 \geqslant 0 \\ 2x - 1 \geqslant 0\end{cases}\: \vee \:\begin{cases}4x - 3 \leqslant 0 \\2x - 1 \leqslant 0 \end{cases} \\ \Leftrightarrow \begin{cases}x \geqslant  \frac{3}{4}  \\ x  \geqslant  \frac{1}{2} \end{cases}\: \vee \:\begin{cases}x\leqslant  \frac{3}{4}  \\x \leqslant  \frac{1}{2}  \end{cases} \\ \Leftrightarrow x \geqslant  \frac{3}{4} \: \vee \: x \leqslant  \frac{1}{2}  \\ \Rightarrow The\: third\: option

5 0
3 years ago
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A newspaper subscription costs $60. Mary Ellen can get a discount of 25% off through her work. How much will Mary Ellen pay for
AysviL [449]

Answer:

$45

Step-by-step explanation:

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3 years ago
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Please help me with this question.
kow [346]
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6 0
2 years ago
The questions is in the picture so are the answers pls help!!! I’ll pick brainliest
SashulF [63]
The first choice because it’s easier than having to add a bunch of numbers so S=(9)(2)(4)
4 0
3 years ago
Please help cause I don’t know how to do this
zalisa [80]

Answer:

  4 GB

Step-by-step explanation:

Let "g" represent the number of gigabytes of data used. Then the phone bill is computed as ...

  bill = 65 + 12g

Aurora's bill is 113, so we can put that value into the equation and solve for g.

  113 = 65 + 12g

  48 = 12g . . . . . . subtract 65 from both sides of the equation

  4 = g . . . . . . . . . divide both sides of the equation by 12

Aurora used 4 gigabytes of data in September.

_____

You can also use your mathematical reasoning to solve this problem. The total bill consists of two charges: a fixed charge of 65 and a charge that depends on data. If you subtract the fixed charge from the bill, you find that the charge that depends on data is 113-65 = 48.

The data charge is 12 times the number of gigabytes. The data charge on the bill is 48, which is 12 times 4. Then the number of gigabytes is 4.

7 0
3 years ago
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