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kolezko [41]
4 years ago
7

What is x in this equation 2-3/4x=11

Mathematics
1 answer:
vladimir2022 [97]4 years ago
3 0

Answer:

x=-12

Step-by-step explanation:

2-3/4x=11

3/4x=2-11

3/4x=-9

x=-9/(3/4)

x=(-9/1)(4/3)

x=-36/3

x=-12

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The directrix of a parabola is y=−4y=−4 . The focus of the parabola is (−2,−2)(−2,−2) .
Dennis_Churaev [7]
Because the focus is (-2,-2) and the directrix is y = -4, the vertex is (-2,-3).

Consider an arbitrary point (x,y) on the parabola.
The square of the distance between the focus and P is
(y+2)² + (x+2)²
The square of the distance from the point to the directrix is
(y+4)²

Therefore
(y+4)² = (y+2)² + (x+2)²
y² + 8y + 16 = y² + 4y + 4 + (x+2)²
4y = (x+2)² - 12
y = (1/4)(x+2)² - 3

Answer: y= \frac{1}{4} (x+2)^{2} - 3

5 0
3 years ago
5/3v = 125/7<br> PLEASE HELP
Oxana [17]

Answer:

v =7/75

Step-by-step explanation:

5/3v = 125/7

\frac{5}{3v} = \frac{125}{7}  cross multiply

5*7 = 125 *3v

35 = 375v divide by 375

v = 35/375

v =7/75

8 0
3 years ago
The weight of animal hearts can range widely. An African bull elephant's heart can weigh as much as 61.73 pounds. A blue whale's
Bogdan [553]
The difference between a blue whale's heart and a African bull elephant heart is 2963.27 lbs. it will take 49 African bull elephant's heart to equal one blue whale's heart.
4 0
3 years ago
Read 2 more answers
Help giving a brainlist
maria [59]
The baker made 144 muffins Monday and 240 muffins Tuesday

How this helps :)
3 0
3 years ago
If the product of any two rational numbers is 2 and one of them is 1/7, find the other number.​
ozzi

Answer:

The other number is 14.

Step-by-step explanation:

To find the other number, all you have to do is divide 1/7 by 2.

\frac{2}{1/7}

= 2 \cdot 7

= 14

Hope this helped!

5 0
3 years ago
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