4 years ago

Simplify the number using the imaginary unit i √-28

Mathematics

2 answers:

frez [133]4 years ago

7 0

Answer:

2i√7

this is the correct answer. just took the quiz

Step-by-step explanation:

gizmo_the_mogwai [7]4 years ago

4 0

Choice 3 for this ☺️

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PLEAS HELP ASAP :)))))

Jet001 [13]

Answer:

18 inches

Step-by-step explanation:

54*1/3=18(inches)

8 0

3 years ago

Quick I need an answer to this Queston:

fiasKO [112]

Step-by-step explanation:

$- \frac{3}{4} x + 2 \frac{1}{4 } = \frac{1}{2} x + 1$

$- \frac{3}{4} x + \frac{9}{4} = \frac{1}{2} x + \frac{2}{2}$

$\frac{ - 3x + 9}{4} = \frac{2x + 4}{4}$

$- 3x + 9 = 2x + 4$

$- 3x - 2x = 4 - 9$

$- 5x = - 5$

$x = \frac{ - 5}{ - 5}$

$x = 1$

The answer is C.

6 0

2 years ago

The value of x square +y square when x =-3and y =4 is

Lubov Fominskaja [6]

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7 0

3 years ago

Math help please show work thanks

katrin2010 [14]

Answer:

Total material needed = 9.5 square feet

Step-by-step explanation:

Dimensions of I = 2. 5feet x 1 feet

Area = 2.5 square feet

Dimensions of S :

Top part = 1 feet x 1 feet

Area of top part = 1 square feet

Bottom part = 1 feet x 2.5 feet

Area of bottom part = 2.5 square feet

Total Area of S = 2.5 + 1 = 3.5 square feet

Total material needed = Area of I + Area of S + Area of S

= 2.5 + 3.5 + 3.5

= 9.5 square feet.

4 0

3 years ago

Suppose that the candy machine holds exactly 650 skittles, and every time someone inserts a quarter, exactly 7 skittles come out

Lady bird [3.3K]

Answer:

510 skittles left in the machine

Step-by-step explanation:

7 skittles x 20 quaters = 140 skittles taken out

650 - 140 = 510

7 0

3 years ago