Ask question

Ask question

All categories

3 years ago

6

I'm so lost could anyone help? Thank you so much

1 answer:

marshall27 [118]3 years ago

5 0

You answer is the last one

You might be interested in

Juan buys a pen for $1.75. what change he should receive if he gives the clerk $5.00?

Ksenya-84 [330]

Subtract 1.75 from 5.00
5.00-1.75= 3.25

6 0

2 years ago

Read 2 more answers

11 POINTS PLZ HELP EMERGENCY

Bad White [126]

Part A

The given expression is:

$(-5(1+2i)+3i(3-4i)$

We expand to get:

$-5-10i+9i-12i^2$

Note that $i^2=-1$

$12-5-10i+9i$

$-5-10i+9i+12$

$7-i$

Part Bi)

The given expression is;

$\sqrt{-50}$

We simplify to get:

$\sqrt{25\times 2\times -1}$

$\sqrt{25\times} \sqr{2}\times \sqrt{-1}$

Note that:

$\sqrt{-1}=i$

$5\sqr{2}i$

This is now of the form $a+bi$ , where $a=0,b=5\sqr{2}$ .

This explains why it is a complex number;

Part bii)

The given expression is :

$\frac{\sqrt{-50} }{\sqrt{5}}$

We simplify to get

$\sqrt{\frac{-50 }{5}}$

$\sqrt{-25}$

$\sqrt{-25}=\sqrt{25}\times \sqrt{-1}$

$\sqrt{-25}=5\times i$

$\sqrt{-25}=5i$

Part C

We want to simplify:

$i^{22}$

We rewrite in terms of $i^2$

$i^{22}=(i^2)^{11}$

$i^{22}=(-1)^{11}$

$i^{22}=-11$

5 0

3 years ago

ANSWER ASAP PLEASE ONLY IF CORRECT!

taurus [48]

Need more detail to solve

4 0

3 years ago

A number is belng written in sclentific notation. The student moves the decimal point to the left 3 places and____.

Sauron [17]

Answer:

a

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

( show your work ) Find the total cost of 6 puppies if each pull-ups coast $250

yKpoI14uk [10]

Answer: $1500

Step-by-step explanation:

<u>Given information</u>

Number of puppies = 6

Cost of each puppy = $250

<u>Given expression deducted from the question</u>

Total cost = number of puppies × cost of each

<u>Substitute values into the expression</u>

Total cost = 6 × 250

<u>Simplify by multiplication</u>

Total cost = $\boxed{1500}$

Hope this helps!! :)

Please let me know if you have any questions

3 0

2 years ago

Read 2 more answers