3 years ago

Simplify this expression! (27)^-2/3

Mathematics

2 answers:

Licemer1 [7]3 years ago

7 0

( 3 ^ 3 )^ ( - 2 / 3 ) = 3 ^ [ 3 * ( - 2 / 3 )] = 3 ^ ( - 2 ) = 1 / ( 3 ^ 2 ) = 1 / 9 = 0.11

mariarad [96]3 years ago

5 0

The answer is 243
so first it is 1/27^2/3
then you multiply

You might be interested in

Write the numbers in Two forms 314,207

ivanzaharov [21]

Word form: Three hundred fourteen thousand two hundred seven.

Expanded form: 300,000 + 10,000 + 4,000 + 200 + 7

4 0

4 years ago

Pls do this thankuso much

sergiy2304 [10]

Ans: D

differentiate sinx=cosx and differentiate x=1

8 0

2 years ago

The points (2, 5) and (1, 1) fall on a particular line. What is its equation in slope-intercept form?

svlad2 [7]

X= cgggvvvvy the best

5 0

3 years ago

If y= (2x^2+x)^3 +(x-1) /(1-x). find dy dx

Mrrafil [7]

Answer:

Step-by-step explanation:

y=(2x²+x)³+(x-1)/(1-x)

=(2x²+x)³+(x-1)/-(x-1)

=(2x²+x)³-1

dy/dx=3(2x²+x)(4x+1)-0

=3x(2x+1)(4x+1)

7 0

3 years ago

Calculating the degrees of freedom, the sample variance, and the estimated standard error for evaluations.

ki77a [65]

Answer:

The variance is $\sigma ^2 =25$

Step-by-step explanation:

From the question we are told that

The sample size is n = 21

The sum of squares is $SS = 500$

Generally the variance is mathematically represented as

$\sigma ^2 = \frac{SS}{n- 1}$

substituting values

$\sigma ^2 = \frac{ 500}{21- 1}$

$\sigma ^2 =25$

4 0

3 years ago