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satela [25.4K]
3 years ago
10

Express in simplest a+bi form: Square root of 1b + Square root of -1b

Mathematics
1 answer:
Nimfa-mama [501]3 years ago
5 0

Express in simplest a+bi form: Square root of 1b + Square root of -1b

\sqrt{1b} + \sqrt{-1b}

Lets simplify \sqrt{-b}

We know \sqrt{-1} = i

\sqrt{-b} =i\sqrt{b)

We cannot simplify \sqrt{1b}

\sqrt{1b} + \sqrt{-1b}

\sqrt{1b} + i\sqrt{b}

So a + ib form is \sqrt{1b} + i\sqrt{b}


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A florist must make 5 identical
Sonbull [250]

Answer:

A. 40x + 10y + 10z = $160

B. 8 Roses, 2 lilies and 2 irises

C.

1. 20x + 5y + 5z = $80

2. 4x + y + z = $16

3. 8x + 2y + 2z = $32

Step-by-step explanation:

Cost for each flower = $160/5 = $32

So we have $32 for each bouquet consisting of 12 flowers each.

Roses = x = $2.50 each

lilies = y = $4 each

irises = z = $2 each

8x + 2y + 2z = $32

8($2.50) + 2($4) + 2($2) = $32

$20 + $8 + $4 = $32

$32 = $32

a. Maximum budget is $160

40x + 10y + 10z = $160

40($2.50) + 10($4) + 10($2) = $160

$100 + $40 + $20 = $160

$160 = $160

b. From above

8x + 2y + 2z = $32

8 Roses, 2 lilies and 2 irises

c. No. There are other solutions If total cost is not limited

1. 20x + 5y + 5z

20($2.50) + 5($4) + 5($2)

$50 + $20 + $10

= $80

2. 4x + y + z

4($2.50) + $4 + $2

$10 + $4 + $2

= $16

3. 8x + 2y + 2z

8($2.50) + 2($4) + 2($2)

$20 + $8 + $4

= $32

7 0
3 years ago
Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest
weqwewe [10]

Answer:

19 people

Step-by-step explanation:

To find how many people went to the mall, count each x

At 0 trips, there are 2 xs, so<u> 2</u> people had 0 trips to the mall

At 1 trip, there are 0 xs, so <u>0</u> people had 1 trip to the mall

At 2 trips, there are 10 xs, so <u>10 </u>people had 2 trips to the mall

At 3 trips, there are 7 xs, so <u>7</u> people had 3 trips to the mall

Add up all the xs

2+0+10+7=19

19 people in all

8 0
3 years ago
Read 2 more answers
2p + 3x = 680 x = 2p
svlad2 [7]
Use substitution. 

2p + 3(2p) = 680
2p + 6p = 680
8p = 680
p = 85

Plug in.
x = 2p
x = 2(85)
x = 170
p = 85
3 0
3 years ago
Read 2 more answers
Help me pls this one is hard
ella [17]

Answer:

2-120

4-240

7-420

Step-by-step explanation:

<em>there are 60 people in each tour group so you multiply 60 by the number of tour groups.</em>

ordered pairs:

<em>(2,120)</em>

<em>(4,240)</em>

<em>(7,420)</em>

hope this helped you!

have a great day!!

7 0
3 years ago
Read 2 more answers
Can you help me with this math problem? <br><br> (x+ 2) ^ 2 <br> (squared) <br><br> thankyou
Alex787 [66]
Answer: x^2 + 4x + 4

Explanation:
just expand, factor out, and add together.

(x+2)(x+2)

x • x = x^2
2x + 2x = 4x
2 • 2 = 4

x^2 + 4x + 4
8 0
3 years ago
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