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Rom4ik [11]
3 years ago
12

A cup of coffee is served to you at 185 F in a room where the temperature is 65 F. Two minutes later the temperature of the coff

ee has dropped to 155 F. How many more minutes would you expect to wait for the coffee to cool to 105 F?
Mathematics
1 answer:
Rina8888 [55]3 years ago
6 0
It will need to wait for 5 minute
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find the root(s) of f (x) = (x + 5)3(x - 9)2(x + 1). 50 POINTS!!!!!!! -5 with multiplicity 3 5 with multiplicity 3 -9 with multi
Dmitrij [34]

Answer:

The answer to this question can be described as follows:

-5 with multiplicity 3

9 with multiplicity 2

-1 with multiplicity 1

Step-by-step explanation:

Given:

\Rightarrow f (x) = (x + 5)^3(x - 9)^2(x + 1)

Solve the above equation:

\Rightarrow f (x) = (x + 5)(x + 5)(x + 5)(x - 9)(x - 9)(x + 1)\\

The roots of the polynomial are as follows:

 \Rightarrow (x-x_1)(x-x_2)(x-x_3)......(x-x_n)\\\\\Rightarrow  x_1,x_2,x_3.........x_n

That's why the roots are:

5 with multiplicity 3

9 with multiplicity 2

-1 with multiplicity 1

8 0
2 years ago
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How will I be able to use subtraction to find lengths of segments,for instance WX an XY
ziro4ka [17]
You subtract the greater one from the smaller one and you get the difference.
4 0
3 years ago
How much would 55 pounds on mercury weight on earth
azamat
144.74 pounds, I rounded the answer. to get this you would divide 55 by .38 .
7 0
3 years ago
Nicole has evaluation scores of 93, 88, 76. Her fourth evaluation will be averaged with her previous three scores
Fofino [41]

Answer:

Is there more to the question?

Step-by-step explanation:

6 0
3 years ago
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Marcy is making a hooked circle-shaped rug for her mother. The circumference of the circle-shaped rug is 75.36 inches. What is t
Nesterboy [21]
     The area of the circular shaped rug would be 451.931, let me explain to you how I got this calculation.
     
     First thing you have to do is know the formula to find the area of a circle. The formula is A=pie x Rsquared, but when you look at the information provided, you dont have the radius, so you have to find it yourself. 
 
    You probably noticed that since diameter is twice the radius, the proportion between circumference and diameter is equal to π: <span>C/D = 2πR / 2R = π is the formula for the convertion of circumfrence to diameter.
</span> 
     Once you find the diameter, which should be rounded to 23.98, you will need to divide it by 2 for the radius which should give you approximatly 11.99. 
 
     Finally, you do the regular formula to find area which is A=pie x Rsquared. so you do 3.14 x (11.99 x 11.99)=451.931in.




8 0
3 years ago
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