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Pavel [41]
4 years ago
9

How to write an equation of a parabola given focus and directrix?

Mathematics
1 answer:
Vladimir79 [104]4 years ago
8 0
(x+2)^2=4(y-3) is an equation
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Write a recursive formula for the sequence 180,160, 140, 120, 100...
CaHeK987 [17]

Answer:

g(n) = 180 - 20(n-1)

Step-by-step explanation:

Since your has its g(1) value as 180, we put 180 in front. Then, we subtract 20 multiplied by n-1, n being the sequence number. For example, if the recursive function has recursed 3 times, we do 3-1, which is 2. We multiply 2 with 20, which is 40. Finally, we subtract 40 from 180, which is 140. This equation is equivalent to g(3) = 180 - 20(3-1). When the sequence has g(3), we clearly see the answer is 140. When we look at the sequence, the third number is 140, proving this equation correct.

7 0
3 years ago
Did I do this right ?
dybincka [34]

No you did not

If original function is y= 3x-2 than inverse function is

3x=y+2 => x= (y+2)/3  than when we change the roles

we get inverse function y=(x+2)/3

Good luck!!!

7 0
3 years ago
What are the terms of -20 5p-7z
NARA [144]
<span>Simplifying 7z + 5p = 9 Reorder the terms: 5p + 7z = 9 Solving 5p + 7z = 9 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-7z' to each side of the equation. 5p + 7z + -7z = 9 + -7z Combine like terms: 7z + -7z = 0 5p + 0 = 9 + -7z 5p = 9 + -7z Divide each side by '5'. p = 1.8 + -1.4z Simplifying p = 1.8 + -1.4z</span>
5 0
3 years ago
2 (x+5) = }(x - 4) ?​
Nostrana [21]

Answer:

X = -14

All you have to do is type in 2(x+5)=(x-4) in to a algebra calculator and you will get -14

3 0
3 years ago
Determine the probability of the following scenario: There are 8 nickels and six dimes in your pocket. Three times, you randomly
Travka [436]

Answer:

13.994%

Step-by-step explanation:

please kindly check the attached files for explanation

3 0
3 years ago
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