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mihalych1998 [28]
3 years ago
5

Which term describes the variable y in the expression y over n

Mathematics
1 answer:
OleMash [197]3 years ago
8 0
The answer to your question should be BASE!

hope this helps, Maryce03! :-)
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HELP!!
leonid [27]

Answer:

The focus point is (2 , 0) ⇒ answer D

Step-by-step explanation:

* Lets revise the equation of the parabola in standard form

- The standard form is (x - h)² = 4p(y - k)

- The focus is (h, k + p)

- The directrix is y = k - p

- If the parabola is rotated so that its vertex is (h , k) and its axis of

 symmetry is parallel to the x-axis, it has an equation of

 (y - k)² = 4p(x - h)

- The focus is (h + p, k)

- The directrix is x = h - p

* Lets solve the problem

∵ The equation of the parabola is y = 1/8(x² - 4x - 12)

- Lets make x² - 4x completing square

∵ √x² = x  

∴ The 1st term in the bracket is x

∵ 4x ÷ 2 = 2x

∴ The product of the 1st term and the 2nd term is 2x

∵ The 1st term is x

∴ the second term = 2x ÷ x = 2

∴ The bracket is (x - 2)²

∵  (x - 2)² = (x² - 4x + 4)

∴ To complete the square add 4 to the bracket and subtract 4 out  

  the bracket to keep the equation as it

∴ (x² - 4x + 4) - 4 = (x - 2)² - 4

- Lets put the equation after making the completing square

∴ y = 1/8 [(x - 2)² - 4 - 12]

∴ y = 1/8 [(x - 2)² - 16] ⇒ multiply both sides by 8

∴ 8y = (x - 2)² - 16 ⇒ add 16 to both sides

∴ 8y + 16 = (x - 2)² ⇒ take from the left side 8 as a common factor

∴ 8(y + 2) = (x - 2)²

∴ The standard form of the equation of the parabola is

   (x - 2)² = 8(y + 2)

∵ The standard form of the equation is (x - h)² = 4p(y - k)

∴ h = 2 , k = -2 , 4p = 8

∵ The focus is (h , k + p)

∵ h = 2

∵ 4p = 8 ⇒ divide both sides by 4

∴ p = 2

∴ The focus = (2 , -2 + 2) = (2 , 0)

* The focus point is (2 , 0)

6 0
3 years ago
A set of cards contains cards numbered 1-10. Mrs. Jacobs class is conducting an experiment in which a card Is drawn from the pil
Olegator [25]

Answer:

a

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Explain how comparing 645 and 738 is different from comparing 645 and 649
slavikrds [6]
I think it is because they are both different differences
7 0
3 years ago
Which is the answer ? Pls help
Kisachek [45]

Answer:

Hello! answer: 248

Step-by-step explanation:

1488 ÷ 6 = 248 HOPE THAT HELPS!

6 0
2 years ago
Read 2 more answers
1c) What is 25% of 40?<br> 8.5
grin007 [14]

<em>2</em><em>5</em><em>%</em><em> </em><em>of</em><em> </em><em>4</em><em>0</em>

<em>=</em><em>2</em><em>5</em><em>/</em><em>1</em><em>0</em><em>0</em><em>×</em><em>4</em><em>0</em>

=<em>0</em><em>.</em><em>2</em><em>5</em><em>×</em><em>4</em><em>0</em>

<em>=</em><em>1</em><em>0</em><em> </em><em>answer</em><em>.</em>

8 0
3 years ago
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