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3241004551 [841]
2 years ago
5

Will anyone please help me with this!Please yo math nerds i need u!

Mathematics
1 answer:
soldier1979 [14.2K]2 years ago
6 0

Answer:

See below.

Step-by-step explanation:

ax^2 + bx + c = 0

a(x^2 + b/a x) + c = 0

Completing the square:

a [ (x + b/2a)^2  - b^2/4a^2] + c = 0

a[ (x + b/2a )]^2 - b^2 / 4a + c = 0

a[ (x + b/2a )]^2 = b^2 / 4a - c

Dividing both sides by a:

(x + b/2a  )^2  =  b^2/4a^2 - c/a

Taking square roots of both sides:

x + b/2a    =   +/- √ (b^2/ 4a^2  - c/a)

x + b/2a  =  +/-  √ [ ( b^2 -  4ac) / 4a^2 )]

x + b/2a  =   +/- √ ( b^2 -  4ac) / 2a

Subtracting  b/2a from both sides and converting the right side to one fraction:

x =  [- b  +/-  √ ( b^2 -  4ac]  / 2a.

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Triangle ABC is an oblique triangle. If angle A equals 57°, angle B equals 73°, and AB equals 24 in, what is the length of AC?
natulia [17]

Step-by-step explanation:

\huge{\underbrace{\overbrace{\mathfrak{\pink{Answer:}}}}}

Angle C must = [180 - 73 - 57 ] = [180 - 130] = 50°

And using rhw Law if Sines, we have.....

AB/sin C = AC/sin B → 24/sin(50) = AC/sin(73) → AC = 24*sin(73)/sin(50) = about 29.96 in

5 0
2 years ago
David's optometrist sold him a bottle of eyeglass cleaner containing 30 ml of glasscleaning solution. assuming there are 20 drop
Furkat [3]
Each complete cleaning requires 6 drops of cleaner.  Let's convert that to ml:

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Recall that 1 bottle contains 30 ml cleaning fluid.

How many cleanings is one bottle of fluid good for?

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8 0
3 years ago
Can you do 2 and 3 please and tell me how you got your answer?
alexandr402 [8]

Answer:

2. Sorry, I don't how to put that into words, because i'm trying to use calculators, then figure out how they got their answer.

3. C

Step-by-step explanation:

2. ^

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7 0
3 years ago
1 tablet 1x per day 45 days 10 tablets per bottle
Lana71 [14]
You would go through 4.5 bottles
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2 years ago
Robin can clean 72 rooms in 6 days how many can he clean in 9 days
Monica [59]
Let's put it this way. 
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Multiply 3 & 36 both by 3
Ratio is now 9:108

The number of rooms in which Robin can clean in 9 days is 108 rooms. 
3 0
2 years ago
Read 2 more answers
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