Which equation is equivalent to

Mathematics

1 answer:

RSB [31]3 years ago

7 0

Answer:

Step-by-step explanation:

(1/3)^x=27^(x+2)

3^(-x)=3^(3(x+2))

3^(-x)=3^(3x+6)

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How to make a mixed number a improper fraction

Elena L [17]

A mixed number of the form $a\frac{b}{c}$ can be turned into an improper fraction by using the fact that a mixed number is really het whole number plus its fraction part, so

$a\frac{b}{c} = {\displaystyle a + \frac{b}{c}=\frac{a}{1}+\frac{b}{c}}$

Then do the usual procedure for adding fractions via common denominator.

For example, to convert the mixed number $5 \frac{1}{4}$ into an improper fraction, we have

$5\frac{1}{4}={\displaystyle 5 +\frac{1}{4}=\frac{5}{1}+\frac{1}{4}}$

To add $\frac{5}{1}+\frac{1}{4}$ , we need $\frac{5}{1}$ to have a denominator of 4, so we multiply the numerator and denominator by 4 to get

$=\frac{5\cdot 4}{1 \cdot 4}+\frac{1}{4}=\frac{20}{4}+\frac{1}{4} = \frac{21}{4}$

Therefore,

$5\frac{1}{4} = \frac{21}{4}$

6 0

3 years ago

1/4 :10=x:4 find x<br><br> I need the answer now

Naily [24]

Answer:

x=1.6

Step-by-step explanation:

Multiply each number by 4 to make wholes and than just cross multiply.

3 0

3 years ago

*20 points*

ioda

So hmm notice the picture below

simply get the area of the segment, and subtract it from the area of the circle, what's left, is the difference

notice your circle, has a radius "r" of 18