3 years ago

Evaluate. 3^−1⋅(4⋅6)⋅2^−3 Enter your answer in the box. please help!!

1 answer:

6 0

$3^{-1}\cdot(4\cdot6)\cdot2^{-3}=\dfrac{1}{3}\cdot24\cdot\dfrac{1}{2^3}=\dfrac{24}{3\cdot8}=\dfrac{24}{24}=1\\\\Used:\\\\a^{-1}=\dfrac{1}{a}\\\\a^{-n}=\dfrac{1}{a^n}$

You might be interested in

Students took two parts of a test, each worth 50 points. Part A has a variance of 25, and Part B has a variance of 36. The corre

Leona [35]

Answer:

Following are the solution to the given choices:

Step-by-step explanation:

In point a:

Calculating the variance of the test grade:

$\to var(A+B)=var A + var B + 2 cov(A,B)$

$=25+36+2(0.8)\\\\=25+36+1.6\\\\=62.6$

In point b:

$\to var(A-B)=varA + var B - 2 cov(A,B)$

$=25+36-2(0.8)\\\\=25+36-1.6\\\\=59.4$

The relationship between the top 20 students is also slight, so the top 20 students are more university-like than all secondary students.

7 0

3 years ago

What number times it self 3 times equals 729

katrin2010 [14]

729 ÷ 3 = 243
so if you do 243 × 3 = 729
so your answer will be 243

3 0

3 years ago

How do find the volume of 20cm and 30cm and 45cm

saw5 [17]

What 3D figure/shape is it?

7 0

3 years ago

Chapter 6 millionaire next door summary

KiRa [710]

Answer:

balls

Step-by-step explanation:

4 0

3 years ago

What is the surface area of this design?

Juli2301 [7.4K]

Answer:

440 or 490

Step-by-step explanation:

8 0

4 years ago