Ask question

Ask question

All categories

3 years ago

7

Divide 1-k^3 by k-1

1 answer:

UNO [17]3 years ago

7 0

Answer:

k 2 + k + 1

Step By Step:

Cancel the common factor.

Then.

k 2 + k +1 by 1

Gets you k2+k+1

You might be interested in

The height of an isosceles triangle is twice the length of its base. What are the coordinates of an undefined vertex?

Dovator [93]

Sorry this is late but it's (7,12)

7 0

3 years ago

Find the length of the third side. If necessary, write in simplest radical form.

melisa1 [442]

$\text{Apply Pythagorean theorem,}\\\\~~~~~~~~\text{Hypotenuse}^2=\text{Base}^2 + \text{Perpendicular}^2\\\\\implies 9^2 = \text{Base}^2 + \left(2\sqrt{14} \right)^2\\\\\implies 81 = \text{Base}^2 + 56\\\\\implies \text{Base}^2 = 81-56\\\\\implies \text{Base}^2 = 25\\\\\implies \text{Base} = \sqrt{25}\\\\\implies \text{Base} = 5\\\\\text{The length of the third side is 5 units.}$

4 0

2 years ago

5^-15 rewritten using a positive exponent

AveGali [126]

Answer:

CHINA

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers

One sample has Aa Aa One sample has n 10 scores and a variance of s2 20, and a second sample has n 15 scores and a variance of s

siniylev [52]

Answer:

option (a) It will be closer to 30 than to 20

Step-by-step explanation:

Data provided in the question:

For sample 1:

n₁ = 10

variance, s₁² = 20

For sample 2:

n₂ = 15

variance, s₂² = 30

Now,

The pooled variance is calculated using the formula,

$S^{2}_{p} = \frac{(n_{1}-1)\times s^{2}_{1} +(n_{2}-1)\times s^{2}_{2}}{n_{1}+n_{2}-2}$

on substituting the given respective values, we get

$S^{2}_{p} = \frac{(10-1)\times 20 +(15-1)\times 30}{10+15-2}$

or

$S^{2}_{p}$ = 26.0869

Hence,

the pooled variance will be closer to 30 than to 20

Therefore,

The correct answer is option (a) It will be closer to 30 than to 20

4 0

3 years ago

8,000 * 40<br> = 320,000

Artyom0805 [142]

Answer:

This is true

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers