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2 years ago

Please send only answer

Mathematics

1 answer:

slamgirl [31]2 years ago

3 0

Answer:

how many times should u use the metal rod ??

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Evaluate 1/3m-1-1/2n when m=21 and n=12

siniylev [52]

The answer is 0, 1/3 of 21 is 7, 7-1=6, 1/2 of 12= 6, and 6-6=0. Hope this helps!

4 0

2 years ago

Multiply: (49)(58)

IrinaVladis [17]

(49)(58) = 2,842 49 x58 ------ 2,842

4 0

3 years ago

Which expression is equivalent to StartFraction (3 m Superscript negative 2 Baseline n) Superscript negative 3 Baseline Over 6 m

Dovator [93]

Option a: $\frac{m^{5} }{162n}$ is the equivalent expression.

Explanation:

The expression is $\frac{(3m^{-2} n)^{-3}}{6mn^{-2} }$ where $m\neq 0, n\neq 0$

Let us simplify the expression, to determine which expression is equivalent from the four options.

Multiplying the powers, we get,

$\frac{3^{-3}m^{6} n^{-3}}{6mn^{-2} }$

Cancelling the like terms, we have,

$\frac{3^{-3}m^{5} n^{-1}}{6 }$

This equation can also be written as,

$\frac{m^{5}}{3^{3}6 n^{1} }$

Multiplying the terms in denominator, we have,

$\frac{m^{5} }{162n}$

Thus, the expression which is equivalent to $\frac{(3m^{-2} n)^{-3}}{6mn^{-2} }$ is $\frac{m^{5} }{162n}$

Hence, Option a is the correct answer.

8 0

3 years ago

Read 2 more answers

Shania is planning a party at her home. She has made 126 chocolate truffles and 84 caramel truffle to give to her guests if ther

Triss [41]

Each person would receive 6 chocolate truffles and 4 caramel truffles because 126÷21=6 and 84÷21=4.

3 0

3 years ago

Does this graph represent a function? What is the domain and range of the graph

Daniel [21]

Yes it is a function. It passes the vertical line test. In other words, it is impossible to draw a single vertical line through more than one point on the V shaped graph. Any input leads to exactly one output.

The domain is the set of all real numbers. This is because we can plug in any x value leading to some specific y value. There are no holes or gaps or jumps to indicate we must restrict any given x value. The domain would not be the set of whole numbers only because values between the whole numbers (eg: decimal values like x = 2.75) work just fine.

The range is the set of y values such that y is either 0 or larger than 0. In short, the range is $y \ge 0$ . Notice how any point on the V shaped graph has a y coordinate that is either 0 or larger than 0. It is impossible to get a y value that is negative.

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In summary,
Yes it is a function
Domain: all real numbers
Range: $y \ge 0$
So the answer is choice B

6 0

3 years ago