How do i multiply negative exponents

2 answers:

8 0

You take the expression in put it in the denominator section of a fraction and change the exponents sign

if you have 2 to the negative second power you would change it to
1 over 2 to the seconds power and reduce so it is 1 over 4

katrin2010 [14]3 years ago

4 0

You add the exponents together when multiplying

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Bond [772]

Answer:

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Step-by-step explanation:

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2 years ago

Whats the answer to the problem Pls

choli [55]

Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

It x, y, and z are positive intergers and 3x = 4y = 7z, then the least possible value of x + y + z is???

Dmitry [639]

$3x = 4y = 7z \\ \Rightarrow \begin{cases}3x - 4y = 0 \\4y - 7z = 0 \\ 7z - 3x = 0\end{cases} \\ \Leftrightarrow \begin{cases}x = \frac{4}{3} y\\4y - 7z = 0 \\ 7z - 3( \frac{4}{3}y) = 0\end{cases} \\ \Leftrightarrow \begin{cases}x = \frac{4}{3} y\\4y - 7z = 0 \\ 7z - 4y= 0\end{cases} \\ \Leftrightarrow \begin{cases}x = \frac{4}{3} y\\ y \\ z = \frac{4}{7}y \end{cases} \\ x,y,z\: are\: intergers\Rightarrow y=LCM(3,7)=21\Rightarrow x = 28,z = 12 \\ \Rightarrow x + y + z = 61$

5 0

2 years ago

if a minute hand on a clock turns 1 degree every minute, how many minutes have passed when it's 1/8 of the way around the clock?

Lynna [10]

There's 60 min, so 1/8 of 60

60/8= 7.5 minutes in 1/8 of 60

4 0

2 years ago

PLZ HELP ME OVER HERE!!

riadik2000 [5.3K]

Answer:

x = 5

Step-by-step explanation:

If x + 5 = 10, then x would have to be 5 because 5 + 5 = 10.

The way you would solve this would be:

x + 5 = 10

subtract 5 from both sides of the equation

x + 5 - 5 = 10 - 5

simplify:

x = 5

5 0

2 years ago