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Sholpan [36]
3 years ago
10

What number should be added to both sides of the equation to complete the square? x2 + 12x = 11

Mathematics
2 answers:
makkiz [27]3 years ago
6 0

given:

x² + 12x = 11

perfect square:

a² + 2ab + b²

a² = x² ⇒ x * x

2ab = 12x ⇒ 2(6)x

b² = 6² ⇒ 36

x² + 12x + 36 = 11 + 36

(x+6)(x+6) = 47

Both sides must be added with 36.

zheka24 [161]3 years ago
5 0

Answer:

36

Step-by-step explanation:

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Write two addition equations that each have a sum of -21.5
blondinia [14]

Answer:

-8.5 + -13 = -21.5

and

-15.5 + -6 = -21.5

6 0
3 years ago
How many times does 7/4 go into 7?
Snowcat [4.5K]

Answer:

1.75

Step-by-step explanation:

When you get a question like "How many times does 4 go into 7?", just think of it as how many times you can fit 4 into 7.

6 0
3 years ago
A veterinary technician recorded the weights of 12 puppies. Of these 12 puppies, 3 weighed over 6 pounds. What percentage of the
OLga [1]

The percentage value of puppies weighing over 6 pounds is 25%

What is Percentage?

Percentage is a relative number that represents the hundredth part of any quantity. One percent (symbolised 1%) is one hundredth part; consequently, 100 percent denotes the complete amount and 200 percent defines twice the supplied amount.

Solution:

Given that there are 12 puppies in total and 3 of them weighted above 6 pounds

To calculate the percentage we need to divide 3 by 12 and then multiply it by 100

= (3/12) * 100

= 25%

To learn more about <u>Percentage</u> from the given link

brainly.com/question/843074

#SPJ1

3 0
1 year ago
Whats the area of the rectangle? Please answer this!
BARSIC [14]

Answer:

Maybe the answer is 50/7

7 0
2 years ago
Aa right triangle has sides measuring 8 centimeteres, 15 centimeters and 17 centimeters. What is the area of the piece
stepladder [879]

Answer:

Area = 127.5cm²

Step-by-step explanation:

Given that,

Length of first side = 8 cm

Length of second side = 15 cm

Length of third side = 17cm

To find,

Area of triangle

to find which of the sides is hypotenuse use Pythagorus theorem

hypotenuse² = height² + base²

17² = 8² + 15²

289 = 289

hence 17 is the hypotenuse and other two are height and base

<h2>Area of triangle = 1/2 height * base</h2>

Area of triangle = 1/2 15 * 17

Area of triangle = 1/2 (255)

Area of triangle = 127.5

5 0
2 years ago
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