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4 years ago

What is (3k+2)(k-3)?

1 answer:

5 0

I think that you have to foil that.

Therefore:

3k(k-3) 2(k-3)
3k^2-9k+2k-6
3k^2-7k-6 (Combine like terms and that is your final answer)

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Convert 29.5 kilograms to grams.<br><br> Enter your answer in the box.

AleksAgata [21]

Answer:

29,500 g

Step-by-step explanation:

1 kg = 1000 g.

7 0

3 years ago

Read 2 more answers

Find the complex fourth roots \[-\sqrt{3}+\iota \] in polar form.

____ [38]

Let $z=-\sqrt3+i$ . Then

$|z|=\sqrt{(-\sqrt3)^2+1^2}=2$

$z$ lies in the second quadrant, so

$\arg z=\pi+\tan^{-1}\left(-\dfrac1{\sqrt3}\right)=\dfrac{5\pi}6$

So we have

$z=2e^{i5\pi/6}$

and the fourth roots of $z$ are

$2^{1/4}e^{i(5\pi/6+k\pi)/4}$

where $k\in\{0,1,2,3\}$ . In particular, they are

$2^{1/4}e^{i(5\pi/6)/4}=2^{1/4}e^{i5\pi/24}$

$2^{1/4}e^{i(5\pi/6+2\pi)/4}=2^{1/4}e^{i17\pi/24}$

$2^{1/4}e^{i(5\pi/6+4\pi)/4}=2^{1/4}e^{i29\pi/24}$

$2^{1/4}e^{i(5\pi/6+6\pi)/4}=2^{1/4}e^{i41\pi/24}$

7 0

3 years ago

The table shows sets of ordered pairs that form a relation.

s2008m [1.1K]

Answer:

First 3 are functions . Last one is not a function

Step-by-step explanation:

They are all functions except the last one.

The last one is not a function because it has duplicate x- values in the ordered pairs (1, -1) and (1, -6). There are 2 outputs for one input so its a relation but not a function

6 0

3 years ago

Read 2 more answers

Mia has a rectangle shape brownie. She cuts the brownie into 3 equal pieces.Which sentence is true ?

MAXImum [283]

Answer:

The whole brownie is 3/3

Step-by-step explanation:

Hello!

This is a classic fractions exercise.

The whole brownie was cut in three equal pieces. Each piece represents 1/3 of the brownie.

If you add the three pieces together 1/3+1/3+1/3 you get the whole brownie again 3/3 = 1

-Options-

The whole brownie is 1/3.

<em>The whole brownie is 3/3. </em>

The whole brownie is 2/3.

The whole brownie is 3/2.

I hope this helps!

4 0

3 years ago

11) Wayne exercised for 5/6 of an hour in the morning and 1/3 of an hour in the evening. How much more of an hour did Wayne spen

Brums [2.3K]

He spent 3/6 hours more or 30 minutes more

8 0

3 years ago