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spin [16.1K]
3 years ago
11

F(x)=-4x^2+10x-8

Mathematics
1 answer:
vazorg [7]3 years ago
6 0

Answer:

Step-by-step explanation:

a = - 4

b = 10

c = - 8

The discriminate is

D = b^2 - 4ac

D = 10^2 - 4*(-4)(-8)

D = 100 -  128

D = - 28 which is not a nice number

Because the Discriminate has a minus result, there are no real zeros.

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How do you know if an equation is discrete or continuous
nikklg [1K]
Discrete data have infinite values or buckets, you can count them. Continuous data has an infinite number of steps which form a continuum. Hope this helps. Please answer this as the brainiest to help me thanks.
7 0
4 years ago
If dy/dx=4y and y=4 when x=0, then y=. A) 4e^4x. B) e^4x. C) 3+e^4x. D) 4+e^4x. e) 2x^2+4
aliina [53]
Hello,

dy/dx=4==>dy/y=4dx==>ln(y)=4x+C
==>y=k*e^(4x)
if x=0 y=4==>4=k*e^(4*0)==>k=4

==>y=4*e^(4x)

Answer A (with parenthesis!!!)
8 0
3 years ago
Question 3 of 10
MrMuchimi

Answer:

The point-slope form  of the line is:

y + 4 = 4(x+3)

Hence, option B is correct.

Step-by-step explanation:

We know the point-slope form of the line equation is

y-y_1=m\left(x-x_1\right)

where

  • m is the slope of the line
  • (x₁, y₁) is the point

Given

The slope m = 4

From the graph, we can take the point (-3, -4)

So, in our case:

(x₁, y₁) = (-3, -4)

m = 4

now substituting m = 4 and (x₁, y₁) = (-3, -4) in the point-slope form of the line equation

y-y_1=m\left(x-x_1\right)

y - (-4) = 4(x - (-3))

y + 4 = 4(x+3)

Therefore, the point-slope form  of the line is:

y + 4 = 4(x+3)

Hence, option B is correct.

  • The graph of the line is also attached.

6 0
3 years ago
8t-r=12t , solve for t
WITCHER [35]
<span>8t-r=12t
Add r to both sides
8t=12t+r
Subtract 12t from both sides so that t can only be on one side
-4t=r
Divide both sides by -4
Final Answer: t= r/-4</span>
6 0
3 years ago
Ranjit wants to measure the length of a table, but has no ruler or
krok68 [10]

9514 1404 393

Answer:

  108 cm

Step-by-step explanation:

6 pencil-lengths will be ...

  6 × 18 cm = 108 cm

The length of the table is 108 cm.

6 0
4 years ago
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