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12345 [234]
3 years ago
15

How to solve 3a - ( -1 ) = -5

Mathematics
1 answer:
inessss [21]3 years ago
3 0
You start by removing the parenthesis. Then, move to the constant right.
Next, divide both sides by 3.
So then you get your answer a=-2

Your welcome
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Help is appreciated! Thanks!
sukhopar [10]

Answer:

  1. 16√3
  2. -45+15i
  3. √255
  4. 6√2 +3√10

Step-by-step explanation:

1)

-4i\sqrt{-48}=-4i\sqrt{(-1)(4^2)(3)}=(-4i)(4i)\sqrt{3}=16\sqrt{3}

__

2)

(-5-5i)(3-6i)=-5(3-6i)-5i(3-6i)=-15+30i-15i+30i^2=-15-30+15i\\\\=-45+15i

__

3)

\sqrt{3}\sqrt{5}\sqrt{17}=\sqrt{3\cdot 5\cdot 17}=\sqrt{255}

__

4)

\sqrt{3}(\sqrt{24}+\sqrt{30})=\sqrt{3\cdot 24}+\sqrt{3\cdot 30}=\sqrt{6^2\cdot 2}+\sqrt{3^2\cdot 10}\\\\=6\sqrt{2}+3\sqrt{10}

_____

The applicable identities are ...

\sqrt{a^2b}=a\sqrt{b}\\\\i^2=-1

7 0
3 years ago
Read 2 more answers
Help me please I need this in by tomorrow
galina1969 [7]

Answer:

BDA=29°, BCD=72°

4 0
3 years ago
What is the surface area of the right cone with the a raidus of 3 and a slant hieght of 15
Novosadov [1.4K]
The surface area of the cone will be  : 169.65 so it would be answer A as          54 x pi = 169.646003
6 0
3 years ago
Which table represents a function?
Zina [86]

Answer:

choice d

Step-by-step explanation:

I hand this question

5 0
2 years ago
The length of a dog on a scale drawing is 9 cm. if the scale is 1 cm:6 cm, what is the actual length of the dog? A 15 cm,
True [87]
Multiply the length in the drawing by the scale 9 x 6 = 54cm
8 0
2 years ago
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