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Veronika [31]
3 years ago
13

Help lol i need gthe answer to this everytime i do it i get it wrong

Mathematics
1 answer:
netineya [11]3 years ago
7 0

Answer:

B

Step-by-step explanation:

You need the equation to equal 0

4x²-5=3x+4 Subtract 4 and 3x from both sides

4x²-5-4-3x

4x²-3x-9

a=4    b=-3    c=-9

(-b±√(b²-4ac))/2a

(-(-3)±√-3²-4(4)(-9))   /   (2(4)

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F(x) = x^2 – (x + 3), what is the value of f(8)
eimsori [14]

Answer:

53

Step-by-step explanation:

f(x) = x^2 – (x + 3)

Let x = 8

f(8) = 8^2 – (8 + 3)

      =64 - (11)

       =53

8 0
3 years ago
Find the midpoint between each pair of coordinates. select the correct answer. (-8, -8), (4, 8)
harina [27]
Mid point b/w pair of coordinate (xo ,yo) ,(x1,y1)
X = xo+x1/2
y= yo+y1/2
thus mid point between (-8,-8),(4,8)
X = -8+4/2= -2
y= -8+8/2 = 0
(-2,0) will be the midpoint
6 0
3 years ago
What is the slope of (-2,4) and (10,-20)?<br><br><br><br> Thanks to whoever answers.
Sonja [21]

Answer:

m=-2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
So I got a question from khan I will give 50 points it is 16− 2r = -3r+ 6r +1<br> r= equals ?
Delvig [45]

Answer:

r = 1/11

Step-by-step explanation:

16r-2r = -3r+6r+1

14r = 3r+1 (combine like terms)

11r = 1

r = 1/11

7 0
2 years ago
Read 2 more answers
Example Given
Delicious77 [7]
The answer is 5

a^2+b^2=c^2
9+16=25
sq root of 25 is 5
4 0
3 years ago
Read 2 more answers
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