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ludmilkaskok [199]
3 years ago
12

(50 POINTS AND BRAINLIEST) Show all work to multiply quantity 2 plus the square root of negative 25 end quantity times quantity

4 minus the square root of negative 100 end quantity
Mathematics
2 answers:
xeze [42]3 years ago
8 0
The equation would be (3+√-16)(6-√-64)
A negative square root can not be a real number, meaning that we have to use the imaginary number.
(3+4i)(6-8i)
How to multiply imaginary numbers...
Treat this like an equation looking like (x-a)(y-b)
Use FOIL
(3+4i)(6-8i)
= 18-24i+24i-32i²
= 18-32i²    (i²= -1 because i= √-1)
= 18- (-32)
= 18 + 32
= 50
harina [27]3 years ago
8 0

Answer: I believe the answer is 2.23606798i

Step-by-step explanation:

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prohojiy [21]

Answer:

113.04 cm³

Step-by-step explanation:

diameter = 6cm

so radius = 3cm

Volume of sphere = \frac{4}3}\pi r^3

= 4 * 3.14 * 3 * 3 *3 / 3

=  4 * 28.26

= 113.04 cm³

6 0
3 years ago
Write a division problem whose quotient has its first digit in the hundreds place
Katen [24]
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Brianna has a 50$ online gift certificate from a book store. The cost of each book is $9. There is also a shipping charge of 5$
ZanzabumX [31]

Answer:

5 books

Step-by-step explanation:

I just went through the nines multiplication table until I got to 9 * 5 which equals 45, and then since it charges $5 for the shipping fee, $45 + $5 = $50 so 5 books would be the amount she can buy

6 0
3 years ago
Read 2 more answers
The distance on a numberline from -10 to 3 is equal to 5x-12.
Viefleur [7K]

Answer:

  1. 13
  2. x = 5

Step-by-step explanation:

To find the total distance, we can add.

10 + 3 = 13

Now, we can use 13 to solve for the equation that is the same.

5x - 12 = 13

5x = 25

x = 5

Best of Luck!

6 0
3 years ago
A worker is to paint the walls of a square room 7.55 ft high and 13.5 ft along each side. what surface area in square meters mus
Kamila [148]

There are 4 walls.  Each wall has the area of length (13.5) x width (7.55).

SA = 4 ( 13.5) (7.55)

     = 407.7 ft²

Next, convert ft² to meters² (1 ft = 0.3048 meters)

407.7 ft² x (\frac{0.3048 meters}{1 ft})² = 37.9 meters²

4 0
3 years ago
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