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romanna [79]
2 years ago
15

What is the square root of -1?

Mathematics
2 answers:
marishachu [46]2 years ago
7 0
It is i

......................
Setler [38]2 years ago
3 0

Sorry, there is not any square root of -1.

Thank you♥♥

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Manu had ₹ 120. He bought one book for ₹ 25.75 and a pen for ₹ 12.50. How much money does he have now?​
adelina 88 [10]

Answer:

₹ 81.75

Step-by-step explanation:

Total =  ₹ 120.

He bought one book for ₹ 25.75 and a pen for ₹ 12.50.

    ₹ 25.75 + ₹ 12.50 =  ₹ 38.25

How much money does he have now?​

     ₹ 120 -  ₹ 38.25 =  ₹ 81.75

8 0
3 years ago
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At a bake sale there were 52 items sold total. If 24 of the items sold were cookies and the rest were brownies what is the ratio
Radda [10]
52=24 + b
to find b, you just subtract (52-24)
28 to 24 is our ratio
we can simplify this (just like fractions!) since both are even, let’s do it by 2!
28/2 = 14 and 24/2 = 12
simplify once more and you get our ANSWER: 7:6
8 0
3 years ago
What are the roots of the polynomial equation? x² + 7x + 12 = 0 Enter your answers in the boxes. x1= x2=
oksian1 [2.3K]
The equation factors as
.. (x +3)(x +4) = 0
By the zero-product rule, the roots are
.. x1 = -4
.. x2 = -3

3 0
4 years ago
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Can someone solve these please
otez555 [7]
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22)\ \sqrt{144x^3y^3z^3}=\sqrt{144\cdot x^2\cdot y^2\cdot z^2\cdot xyz}=12xyz\sqrt{xyz}\\\\24)\ -3\sqrt3+3\sqrt5+3\sqrt5=-3\sqrt3+8\sqrt5
6 0
3 years ago
The following chart shows a store’s coat sales for two years.
STALIN [3.7K]

Answer:

Sales of trench coats increased 8.3 percentage points faster than total coat sales.

Step-by-step explanation:

<u>2006:</u>

top coats is 297,

parkas is 210,

jackets is 213,

raincoats is 137,

trench coats is 103

Total: 297+210+213+137+103=960

<u>2007:</u>

topcoats is 223,

parkas is 210,

jackets is 285,

raincoats is 259,

trench coats is 127

Total: 223+210+285+259+127=1,104

<u>Percent increase in total sales:</u>

\dfrac{1,104-960}{960}\cdot 100\%=15\%

<u>Percent increase in sales of trench coats:</u>

\dfrac{127-103}{103}\cdot 100\%\approx 23.3\%

Since 23.3\%-15\%=8.3\%, sales of trench coats increased 8.3 percentage points faster than total coat sales.

7 0
3 years ago
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