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Talja [164]
4 years ago
6

What is the square root of -1 ?

Mathematics
1 answer:
zavuch27 [327]4 years ago
3 0

Answer:

i

Step-by-step explanation:

it is an imaginary number

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150 books because 200 times .25 is 150
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Someone please help me
pentagon [3]

Answer:

Option 3 or Option 4.

Step-by-step explanation:

I have this doubt because actually, a rhombus with a right angle (one) is not necessarily a square. Some rhombuses have one right angle and are still not squares. Now, if the four angles are right, it is a square, but this only says one.

On other hand, a parallelogram with congruent diagonals isn't a square necessarily either. Rectangles have congruent diagonals and are parallelograms.

In case you only can answer with one, I'll say is option 3, hope it helps!

 

8 0
3 years ago
URGENT PLEASE HELP I AM GIVING AWAY MANY POINTS I HAVE ATTACHED THE QUESTION
Novosadov [1.4K]

Answer:

a) x=0, x=1

b)x=0, x=4/3

Step-by-step explanation:

I didnt use the graph, just used algebra. For part a, you can find the answers using the graph by looking at the value of x when y = whatever value they give.

A)

3x²-3x+2=2

3x²-3x+0

x(3x-3)=0

For the product of two things to equal zero, one of them has to be zero. For example, if ab=0, then either a or b (or both) are zero.

Therefore..

x=0

or 3x-3=0, ∴x=1

b)

3x²-3x-1 = x-1

3x²-4x=0

x(3x-4)=0

∴x=0, x=4/3

3 0
3 years ago
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Simplify the expression square root of -1 over (3+8i) - (2+5i)
Lynna [10]

\frac{i}{(3 \:  +  \: 8i) \:  -  \: (2 \:  +  \: 5i)}  \:  =  \:  \frac{i}{1 \:  +  \: 3i}  \:  =  \:  \frac{i}{1 \:  +  \: 3 i}  \:  \times  \:  \frac{1 \:  -  \: 3i}{1 \:  -  \: 3i}  \:  =  \:  \frac{i \:  +  \: 3}{1 \:  +  \: 9}  \:  =  \:  \frac{3 \:  +  \: i}{10}A) (3 + i)/10
8 0
3 years ago
Find the area of the trapezoid by decomposing it into other shapes.
omeli [17]

Answer:

(C) 38 cm²

Step-by-step explanation:

Top length = 6 cm

Bottom length = 5 + 8 = 13 cm

Area

= 1/2 ( 6 + 13) (4)

= 1/2(19)(4)

= 38 cm²

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