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kati45 [8]
3 years ago
6

Which statement describes the behavior of the function f(x) = 2x/1-x2?

Mathematics
1 answer:
OlgaM077 [116]3 years ago
5 0

Answer:

Step-by-step explanation:

Please use parentheses around the denominator:

              2x

f(x) = -------------- or   f(x) = 2x / (1-x^2)

          1 - x^2

to eliminate any ambiguity.  The graph of this function passes thru the origin (0,0) and has vertical asymptotes at x = -1 and x = + 1.  The function is negative on (-1,0) and positive on (0,1).  

Additionally, there are two horizontal asymptotes.   As x grows large and negative, f(x) approaches zero from above.  As x grows large and positive, f(x) approaches zero from below.

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Solve for x. -3/5x+1/5>7/20
kakasveta [241]

Answer:

Step-by-step explanation:

15 + 720 is 1120

3 0
3 years ago
1.
RUDIKE [14]

Answer:

Answer:

For converging lens

object distance u = - 2.0cm

Focal length f = 5.0cm

From lens formula

m=

m=

=3

Size of image = size of object x Magnification

= 2 x .10 = 2.0cm

For diverging lens

object distance u = 140 - 120 = 20 cm

focal length f = -30 cm

frac{1}{v}+\frac{1}{20}=-\frac{1}{30}

v = -12 cm

m = 12/20 = 0.6

size of final image = .6 x 30 = 18 cm

3 0
4 years ago
Score: 50.
dsp73

Answer:

20 weeks

Step-by-step explanation:

you take the total quantity of paper (4 cases times 8 reams per case = 32 reams.

If they use 3 reams every 2 weeks, it will take 22 weeks to use 33 reams

round it to the nearest ten would be 20 weeks!

7 0
3 years ago
The area of a rectangular wall of a barn is 192 square feet. Its length is 8 feet longer than twice its width. Find the length a
xeze [42]

Answer:

Let l be length and w be the width

l = 2w+12

Area = (2w+12)*w = 224

2w^2 + 12w - 224 = 0

w^2 + 6w - 112 = 0

using quadratic formula

w=[ -6 +- {36- 4*1*(-112)}^0.5]/2*1

w = [-6 +- {484}^0.5]/2

w = [-6 +- {22}]/2

w = 16/2 or -28/2

w = either 8 or -14

Width can not be a negative number

wI’d think= 8 ft

length = 2*8+12 = 28 ft

Step-by-step explanation:

7 0
3 years ago
How do I simplify this expression <br> (4x-y) (4x+y)
Oxana [17]

Answer:

16^2 - y^2

Step-by-step explanation:

First you need to distribute the (4x - y) to the other numbers. So we'll distribute it one by one, to make it easier. So taking the 4x from (4x - y), you need to distribute it to (4x + y). So 4x × 4x is 16^2. That's the first part, now we need to distribute the 4x to the positive y, which is 4xy. Now we work on the negative y from (4x - y). Distribute the -y to (4x + y). So -y × 4x = -4xy, and -y × y = -y^2. So now you should have the numbers, 16x^2 + 4xy - 4xy - y^2. The positive 4xy and negative 4xy cancel out so that would just be 0, so you can take that out. Now you should have 16^2 - y^2, and that's the simplified expression.

7 0
4 years ago
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