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user100 [1]
3 years ago
12

Which expression is equivalent to 9^-2? O-81 O-18 O1/81 O1/18

Mathematics
1 answer:
kherson [118]3 years ago
5 0

Answer:

Option C - 1/81

Step-by-step explanation:

9^(-2) = 1/(9^2) [ Because a^(-m) = 1/(a^m) ]

so, 1/(9²) = 1/81.

Hope this helps you.

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Find m<1 and m<2. Justify your answer.
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M<1 80 by the corresponding angles postulate

Step-by-step explanation:

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3 years ago
A contractor bought 7.6 ft2 of sheet metal. She has used 3.5 ft2 so far and has ​$123 worth of sheet metal remaining. The equati
Sergio039 [100]

Answer:

Sheet metal remaining = 4.1x

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Total sheet metal bought = 7.6 ft2

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7.6x − 3.5x = 123

Where,

x = cost per square​ foot

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2 years ago
In a Cartesian coordinate system, the horizontal axis is called the x-axis and the____ axis is called the y-axis?
lianna [129]

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"vertical" (y axis), "lateral" (x axis), and "horizontal" (z axis)

Step-by-step explanation:


4 0
3 years ago
Find the domain and range of f(x)=3^x
Margaret [11]

Answer:

Below in bold.

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
What is the solution set to the following system x+y=5
Agata [3.3K]
<h3>Answer:</h3>

D (0, 5), (5, 0)

<h3>Step-by-step explanation:</h3>

Anything with -5 and 0 will not satisfy x+y=5. This eliminates the first three choices.

___

It is easiest to check the offered answers. You can also solve this graphically, or by solving the simultaneous equations.

You can, for example, square the first equation and subtract the second:

... (x+y)² -(x²+y²) = 5² -25

... 2xy = 0

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3 0
3 years ago
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