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S_A_V [24]
3 years ago
8

What’s the answer???(SOMEONE PLEASE HELP)

Mathematics
2 answers:
Pie3 years ago
6 0

Answer:

= 5

Step-by-step explanation:

i = \sqrt{-1}

-4 - 9*\sqrt{-1}

-4 + 9 * \sqrt{1}

-4 + 9 * 1

-4 + 9

= 5



kakasveta [241]3 years ago
5 0

Answer:

\sqrt{97}

Step-by-step explanation:

|a + bi| = \sqrt{a^2 + b^2}

|-4 - 9i| = \sqrt{(-4)^2 + (-9)^2}

|-4 - 9i| = \sqrt{16 + 81}

|-4 - 9i| = \sqrt{97}

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NEEED HELPPP !!!!!!!!!!
serious [3.7K]

Answer:

X + 7 + 2x + 19 = 35

Add like terms

3x + 26 = 35

-26          -26

3x = 9

/3   /3

X = 3

3 0
2 years ago
Calculator
Anna11 [10]

Answer:

The formula to calculate the total surface area of a cylinder is given as, the total surface area of cylinder = 2πr(h + r), while the curved surface area of cylinder formula is, curved/lateral surface area of cylinder = 2πrh, where 'r' is the radius of the base and 'h' is the height of the cylinder.

Step-by-step explanation:

hope it helps you

because I am not getting your answer

6 0
2 years ago
Read 2 more answers
Ken has read 1/3 of his book what fraction of his book is left to read?​
Stells [14]

Answer:

2/3

Step-by-step explanation:

fraction of book already read = 1/3

fraction which represents whole book = 1 = 3/3

fraction of remaining book = fraction of whole book - fraction of book already read

= 1 - 1/3

= 3/3 - 1/3

= (3-1) /3

= 2/3

8 0
3 years ago
Whats an exponent and how is it used an mathematics
gizmo_the_mogwai [7]

Answer:  a quantity representing the power to which a given number or expression is to be raised, usually expressed as a raised symbol beside the number or expression

Step-by-step explanation:

for example

10  x 10 = 100

to simplify this you put a small 2 on the top right corner of the number 10

4 0
3 years ago
If the diameter of a disc is 50 ft, what will be the area of the disc?
olga55 [171]

Hey there! Your answer is:

1,963

Step-by-step explanation:

Please mark Brainliest<3

7 0
3 years ago
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