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KIM [24]
3 years ago
12

F(x) = 2/x^2 - 2x - 3 PLS HELP!!!

Mathematics
1 answer:
Marina CMI [18]3 years ago
6 0

Answer: The factored expression is:

2/ (x+1)(x-3)

The domain is (-1,3)

range is y= -1/2

X = 0     Y = (0,-2/3)

HORIZ: Y=0

VERTIC :  x= -1 x=3

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A chemist has 10% and 40% solutions of acid available. How many liters of each solution should be mixed to obtain 120 liters of
kaheart [24]

Answer:

100 liters of  10% solution is used and 20 liters of  40% solution is used

Step-by-step explanation:

Let "X" amount of 10% solution is used. Then the amount of 40% solution used is equal to 120-X

Now

10% of X + 40% of (120-X) = 15% of 120

On solving the above equation, we get

0.1 X + 0.4 (120-X) = 0.15 *120\\0.1 X + 48 -0.4X = 18\\0.3 X = 30\\X = 100liters

Amount of 40% solution used  = 120 -X = 120-100 = 20 liters

100 liters of  10% solution is used and 20 liters of  40% solution is used

7 0
3 years ago
Help w homework plsssss
Alenkinab [10]

Answer:

67

Step-by-step explanation:

complementary mean it equals 90 degrees

90-23 = 67

m<2=67

3 0
3 years ago
The width of a rectangle is fifteen feet less than its length. If the area of the rectangle is 54 square feet, find the width.
PolarNik [594]

Answer:

3 ft

Step-by-step explanation:

It is because 3 times 18 is 54 and 3 is 15 less than 18

4 0
3 years ago
If the perimeter of the following triangle is 7x-2, what is the length of the unknown side?
Alinara [238K]

7x-2-(3x-9)-(x+7)

=7x-2-3x+9-x-7

=7x-3x-x-2+9-7

=3x

4 0
3 years ago
Mikel creates the table below to help her determine 40% of 70
DerKrebs [107]
40% percent times 70 is want I believe
3 0
4 years ago
Read 2 more answers
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