All categories

4 years ago

1/7 to the 3rd power as a fraction

Mathematics

1 answer:

svetlana [45]4 years ago

7 0

Answer:

1/7^3 would be

muiltply the 1 and 7 by 3
1×3 And 1×7 is 1 /343
so the answer is 1/343

You might be interested in

What is the square root of 345234

san4es73 [151]

Answer:

587.56

Step-by-step explanation:

cause

8 0

3 years ago

Determine whether the following sampling is dependent or independent. Indicate whether the response variable is qualitative or q

NeTakaya

Answer:

1. option D

2. option A

Step-by-step explanation:

Independent samples are samples that are selected randomly so that its observations do not depend on the values other observations. Thus, this sampling is independent. The sampling is independent because an individual selected for one sample does not dictate/affect which individual is to be in the second sample.

The variable is qualitative because it is an attribute classification. A qualitative variable are variables that are not numerical. It describes data that fits into categories (personality type).

3 0

3 years ago

Can someone help me?<br><br>2b²+17b+21<br><br>Thanks

vladimir1956 [14]

Answer:

(2b+3) (b+7)

Step-by-step explanation:

2b²+17b+21

2b²+14b+3b+21

2b(b+7) + 3(b+7)

(2b+3) (b+7)

6 0

3 years ago

Read 2 more answers

6^2 + 3 √9 show work

professor190 [17]

Answer:

Step-by-step explanation:

6^2 + 3√9

=36 + (3 x 3)

=36 + 9

= 45

4 0

3 years ago

Read 2 more answers

1) An i staircase has a 10 inch vertical rise per step to get to the second floor of the house. If the angle of elevation is 30.

bezimeni [28]

Answer:

Each landing is about 17 inches.

The vertical rise from Floor 1 to Floor 2 is about 7 feet.

Step-by-step explanation:

Please refer to the attachment below. (I accidentally wrote 30.30 instead of 30.20. Please ignore that and sorry for any confusion.)

Part A)

So, we want to find the length of $\ell$ .

Note that the angle of elevation, the vertical height, and $\ell$ form a right triangle.

Since the vertical height opposite to our angle is 10, and we want to find the adjacent height, we can use the tangent ratio:

$\displaystyle \tan(x^\circ)=\frac{\text{Opposite}}{\text{Adjacent}}$

Therefore:

$\displaystyle \tan(30.20)=\frac{10}{\ell}$

Solve for $\ell$ . Cross-multiply:

$\displaystyle \ell\tan(30.20)=10$

So:

$\displaystyle \ell=\frac{10}{\tan(30.20)}=17.1817...\approx17\text{ inches}$

The landing space per step is about 17 inches.

Part B)

We know that there are a total of 12 feet of horizontal space total for each landing.

12 feet is equivalent to (12)(12) = 144 inches.

Since each landing is 17.1817... inches, this means that we have 144/(17.1817...) = 8.38... or about 8 steps.

Since the vertical rise of each step is 10 inches, the vertical rise from the 1st Floor to the second will be 8(10) or 80 inches or 80/12 = 6.666... or about 7 feet.

8 0

3 years ago