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diamong [38]
3 years ago
10

Complete the square to transform the quadratic equation into the form (x – p)2 = q. x2 - 12x - 5 = 7 A) (x - 36)2 = 9 B) (x - 6)

2 = 48 C) (x - 36)2 = -9 D) (x - 6)2 = -48
(May I have an explanation or work that you did)
Mathematics
2 answers:
iren2701 [21]3 years ago
6 0

x2 - 12x - 12 = 0

(x - 6)2 - 48 = 0

(x - 6)2 = 48

Hence, the answer is (B).

Olenka [21]3 years ago
4 0

Answer:

B

Step-by-step explanation:

given

x² - 12x - 5 = 7 ( add 5 to both sides )

x² - 12x = 12

To complete the square

add (half the coefficient of the x- term )² to both sides

x² + 2(- 6)x + (- 6)² = 12 + (- 6)²

x² + 2(- 6)x + 36 = 12 + 36 ← complete the square on the left side

(x - 6)² = 48 → B

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Pierre wants to make tables and chairs. He has a total of 220 wooden boards and 760 nails. 13T+8C≤220 represents the number of t
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Answer:

Pierre has enough boards and nails to make 9 tables and 5 chairs.

Step-by-step explanation:

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Let us substitute 9 for T and 5 for C and check.

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So, 220 wooden boards are sufficient to make 9 tables and 5 chairs.

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Substitute 9 for T and 5 for C.

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So, 760 nails are sufficient to make 9 tables and 5 chairs.

Hence, Pierre has enough boards and nails to make 9 tables and 5 chairs.

3 0
3 years ago
Using the following triangle, what is the cosine of angle B?
stealth61 [152]

Hello!

To find cosine, use the formula cos = adjacent / hypotenuse.

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3 years ago
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. A trader bought A TV set for Birr 2000 and sold it at loss of 11/2% what:was the selling price?​
olga nikolaevna [1]

Answer:

1890

Step-by-step explanation:

Loss = 11/2 % = 5.5 %

Cost price = 2000

Loss = 5.5% of cost price

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Selling price = Cost price - loss

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6 0
3 years ago
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