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geniusboy [140]
3 years ago
12

A parabola has a focus of F (8.5,-4) and a directrix of x=9.5.

Mathematics
1 answer:
SVETLANKA909090 [29]3 years ago
7 0

B......is the answer
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Find the discriminant<br> 9x^2+14x+13=8x^2
tiny-mole [99]

Answer:

The discrimant of this equation is 144.

Step-by-step explanation:

First you have to move all the variables to one side to make the equation/expression into 0 by substracting 8x² to both sides :

9x² + 14x + 13 = 8x²

9x² + 14x + 13 - 8x² = 8x² - 8x²

x² + 14x + 13 = 0

It is given that the formula of discriminant is, D = b² - 4ac where a&b&c represent the number of the equation, ax²+bx+c = 0 :

x² + 14x + 13 = 0

D = b² - 4ac

= 14² - 4(1)(13)

= 196 - 52

= 144

8 0
3 years ago
Bob harvested flour from 4 of his fields. From the first field, he harvested 13 ton of flour. The second field yielded 24 ton of
DIA [1.3K]
Bob harvested 65 tons total (13 + 24 + 14 + 14)
and as far as drawing a diagram I don't know what to tell you 

hope this helps
6 0
3 years ago
Help me plssssssssssss
BlackZzzverrR [31]

Answer:

c

Step-by-step explanation:

look at the x and y axis

6 0
3 years ago
Read 2 more answers
Please hurry i need this fast
andrey2020 [161]

Answer:

9

Step-by-step explanation:

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6 0
3 years ago
Write the list of integers in increasing order from left to right.12, -4, -9,2, -2.
kotykmax [81]

we have the list

12, -4, -9,2, -2

rewrite in increasing order from left to right

The answer is

<h2>-9,-4,-2,2,12</h2>
5 0
1 year ago
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