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denpristay [2]
3 years ago
10

What is the intermediate step in the form (x+a)^2 = b as a result of completing the square for the following equation?

Mathematics
2 answers:
Pepsi [2]3 years ago
7 0

Assuming you are speaking of the Real Numbers…

x^2+66=14x+15

x^2 - 14x + ?? = -51

x^2 - 14x + (half of -14 squared) = -51 + (half of -14 squared)

x^2 - 14x + 49 = -51 + 49

(x - 7)^2 = -2

By the way, in the real number system, you can’t square any number and get a negative so the above equation has no solution. If you allowed for complex solutions…there would be two of those.

lawyer [7]3 years ago
6 0

Answer:

Sorry don't know the answer.

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? is in the picture plsss answer
balandron [24]

Answer:

You have a triangle and a Square!

Step-by-step explanation:

Blue = Square

Red = triangle

3 0
3 years ago
Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming poo
kolezko [41]

Let <em>x</em> and <em>y</em> be the unit rates at which one large pump and one small pump works, respectively.

Two large/one small operate at a unit rate of

(1 pool)/(4 hours) = 0.25 pool/hour

so that

2<em>x</em> + <em>y</em> = 0.25

One large/three small operate at the same rate,

(1 pool)/(4 hours) = 0.25 pool/hour

<em>x</em> + 3<em>y</em> = 0.25

Solve for <em>x</em> and <em>y</em>. We have

<em>y</em> = 0.25 - 2<em>x</em>   ==>   <em>x</em> + 3 (0.25 - 2<em>x</em>) = 0.25

==>   <em>x</em> + 0.75 - 6<em>x</em> = 0.25

==>   5<em>x</em> = 0.5

==>   <em>x</em> = 0.1

==>   <em>y</em> = 0.25 - 2 (0.1) = 0.25 - 0.2 = 0.05

In other words, one large pump alone can fill a 1/10 of a pool in one hour, while one small pump alone can fill 1/20 of a pool in one hour.

Now, if you have four each of the large and small pumps, they will work at a rate of

4<em>x</em> + 4<em>y</em> = 4 (0.1) + 4 (0.05) = 0.6

meaning they can fill 3/5 of a pool in one hour. If it takes time <em>t</em> to fill one pool, we have

(3/5 pool/hour) (<em>t</em> hours) = 1 pool

==>   <em>t</em> = (1 pool) / (3/5 pool/hour) = 5/3 hours

So it would take 5/3 hours, or 100 minutes, for this arrangement of pumps to fill one pool.

6 0
3 years ago
Square root -100=___+___i
loris [4]

Answer:

10i

Step-by-step explanation:

it is square root of 100, which is 10, times i, which is square root of -1

PLZ BRAINLIEST

7 0
3 years ago
A3 + a + a2 + 5 + 7a2 + 4a - 8a2 - 6 =
mamaluj [8]

Answer:

3 + 5 − 1

explination

6 0
2 years ago
What is the smallest solution to the equation
yulyashka [42]

Answer:

The value of x is 6 and -6. The smallest value of x is -6

Step-by-step explanation:

2/3 x² = 24

solving this equation for finding the value of x.

Multiply both sides by 3/2

x² = 24 * 3/2

x² = 72/2

x² = 36

Now, to find the value of x taking square root on both sides

√x² = √36

x= ±6

So, the value of x is 6 and -6. The smallest value of x is -6

8 0
2 years ago
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