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mylen [45]
3 years ago
9

Perform the indicated operation. y^2 + 3y-10/3y+15 divided (10-5y)

Mathematics
1 answer:
GrogVix [38]3 years ago
6 0

Answer:

-1/15

Step-by-step explanation:

(y^2+3y-10)/(3(y+5)) / (5(2-y))

-----

Factor::

[(y+5)(y-2)/(3(y+5))] / (-5(y-2))

--------------

Cancel (y+5) and (y-2) to get::

= -1/15

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It is estimated that approximately 10.5% of Americans are afflicted with diabetes. Suppose that a new diagnostic test is being c
Alla [95]

Answer:

0.03

Step-by-step explanation:

Percentage of americans with diabetes = 10.5% = 0.105

Percentage of americans without diabetes = 89.5% = 0.895

Adults over 40 with diabetes tested positive = 95% = 0.95

Adults over 40 with diabetes tested negative = 5% = 0.05

Adults over 40 without diabetes tested positive = 3.5% = 0.035

Adults over 40 without diabetes tested negative = 96.5% = 0.965

The probability of selecting an adult over 40 without diabetes but positive diagnosis;

     = 0.895 * 0.035

     = 0.031325

     = 0.03

5 0
3 years ago
Mom is 8 years older than 4 times Sarah’s age. The sum of their ages is less than 83. What is Sarah’s oldest possible age?
tigry1 [53]

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3 0
3 years ago
3 (6+3n) = 5n + 18 + 3n
amid [387]

Answer:

n = 0

Step-by-step explanation:

Multiply parenthesis by 3 and get:

1.) 18 + 9n = 5n + 18 + 3n

Then cancel the equal terms:

9n = 5n + 3n

Collect like terms:

9n = 8n

Move variable to the left:

9n - 8n = 0

n + 0

Plugin the value of 0 into x:

3 (6 + 3 x 0) = 18

5 x 0 + 3 x 0 + 18 = 18

*If the plugged in value have the same result than the answer is correct because 18 + 18.

4 0
3 years ago
I need help please asap
stira [4]

Answer:

It will give you two complex solutions.  

3 0
3 years ago
What is the image of 12,4 after a dilation by a scale factor of 1/4 centered at the origin
nydimaria [60]

Answer:

The coordinates of the image are (3,1)

Step-by-step explanation:

Here, we want to get the coordinates of the image given the pre-image coordinates and the scale factor

What we shall do here is to multiply the scale factor by each it the coordinates since it is centered at the origin

The coordinates of the image is thus;

(1/4 * 12, 1/4 * 4)

= (3,1)

7 0
3 years ago
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