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morpeh [17]
3 years ago
15

5x+6=-4 it is quadratic?​

Mathematics
1 answer:
AnnyKZ [126]3 years ago
4 0

Answer:

x=-2

Step-by-step explanation:

5x=-6-4=-10

x=-2

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The human body has a normal temperature of 98.6°F. Doctors will get worried if a sick patient has a temperature that varies from
makvit [3.9K]

Answer:

|T- 98.6| \geq 3

And in order to solve this we have two possibilities:

Solution 1

T -98.6 \leq -3

And solving for T we got:

T \leq 98.6- 3

T\leq 95.6

Solution 2

And the other options would be:

T -98.6 \geq 3

T \geq 101.6

Step-by-step explanation:

For this case we can define the variable os interest T as the real temperature and we know that if we are 3 F more than the value of 98.6 we will be unhealthy so we can set up the following equation:

|T- 98.6| \geq 3

And in order to solve this we have two possibilities:

Solution 1

T -98.6 \leq -3

And solving for T we got:

T \leq 98.6- 3

T\leq 95.6

Solution 2

And the other options would be:

T -98.6 \geq 3

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6 0
4 years ago
Find the derivative of y= 1 / x​
givi [52]

Answer:

dy/dx = -1/x^{2}

Step-by-step explanation:

y = 1/x

dy/dx = d/dx(1/x)

=> dy/dx = d/dx(x^{-1})

=> dy/dx = -x^{-2}

=> dy/dx = -1/x^{2}

6 0
3 years ago
2. Solve in two ways<br> 1/2 +1/4
Romashka [77]

Answer:

Step-by-step explanation: the first time you get 0.75 and the second time you get 0.125 hope this helped

6 0
4 years ago
My victory will be in your hands if you answer this ✌✌✌✌✌
Julli [10]

Add dress and shoes together:

30 + 25 = 55

1/5 off means the total after discount would be 4/5 ( 1 - 1/5 = 4/5)

Multiply total price by 4/5:

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Total after discount is 44

Now add shipping:

44 + 8 = 52

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7 0
3 years ago
Read 2 more answers
It has been estimated that a student’s final grade in a course decreases by 5 points for every 2 days absent from class. If a st
enyata [817]

Answer:

10 points

Step-by-step explanation:

per 2 days you lose 5 points. To get to 4 days you multiply 2 by 2 and get 4 and 5 by 2 and get 10. So per 4 days he loses 10 points.

5 0
3 years ago
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