Which graph represents the solution set for the quadratic inequality x^2+2x+1 0

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Answer 1

Answer: The answer is [-2,7] on e2020, good luck fam

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The endpoints of the arms of an inscribed angle are the endpoints if a diameter. What is the measure of the inscribed angle? How do you know?Draw a diagram to support your answer.
Please help!

Answers

Since the endpoints lie opposite to each other and are a part of the diameter, the two arms make a straight line because a diameter is always a straight line. So the angle formed is a straight angle and so it is equal to 180°.
Hope I helped! And please do let me know if you have any other doubts!

90 degrees if the third point lands where I think it does (although you don't specify) - see attached. I know because they're be 4 of them if I mirrored a point across to the other side of the circle. If the point did not bisect the other two, then it would take a little more trig, but I could figure it out

After sitting in a refrigerator for a while, a turkey at a temperature of 34 degrees F is placed on the counter and slowly warms closer to room temperature 72 degrees f. The turkey reaches the temperature of 41 degrees F after 35 minutes. Using this information, find the value of k, to the nearest thousandth. Use the resulting equation to determine the Fahrenheit temperature of the turkey, to the nearest degree, after 80 minutes.

Answers

Answer:

k = 0.006
T = 48 °F

Step-by-step explanation:

The initial temperature difference of 72 -34 = 38 °F is reduced to a difference of 72 -41 = 31 °F after 35 minutes. The exponential term in the temperature expression could have the factor ...

(31/38)^(t/35) = e^(-kt)

Taking the natural log, we find ...

(t/35)ln(31/38) = -kt

k = ln(38/31)/35 ≈ 0.00581711

To the nearest thousandth, this is ...

k ≈ 0.006

Using this in the equation for temperature, we have ...

T = 72 -38e^(-0.006t)

Filling in the desired value for t (80), we find the turkey temperature after 80 minutes to be about

T = 72 -38e^(-.006×80) = 72 -38e^-.48 ≈ 48.49

T ≈ 48 °F

The value of k is about 0.006, and the turkey temperature is about 48 °F.

Given that the volume of a cube is 2744 cm3 find the length of its edge

Answers

the answer is 14 mm
hope it helps :)

What is 4.386 when rounded to the nearest tenth?

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4.486 because you would look at the 8 and it is over 5 so you round up to the 3 and it become 4. But if it was less them you would keep it the same.

your welcome

It would 4.4 because 3 is in the tenths place sp you look at the number behind it

Must the difference between 2 rational numbers be a rational number?

Answers

Yes. The difference between 2 rational numbers must be a rational number.

The first rational number can always be written as a fraction of integers.
Let's call it   A/B .

The second rational number can always be written as a fraction of integers.
Let's call that one C/D .

   Their difference is A/B - C/D .

   'BD' is a common denominator.

   A/B = AD/BD

   C/D = CB/BD

   A/B - C/D = AD/BD - CB/BD =

      (AD - CB) / BD

Each term in that ugly thing /\ is a product of integers,
so it must be must be another integer.

Therefore the whole ugly fraction is another rational number.

a/b - c/d with a,b,c,d as integers and b,d ≠ 0. a/b - c/d -> ad/bd - bc/bd --> (ad - bc)/bd
The difference will always be rational. This is because the denominator will never be 0. Everything is closed under some kind of operation, and the answers will always be able to be written as a ratio.
Hope that helped.

A motorist traveled 311 miles on 12 gallons of gas. To the nearest tenth, how many miles can the motorist travel on one gallon of gas?

Answers

The motorist can travel 25.92 miles on one gallon of gas

On one gallon of gas a motorist can travel 25.92 miles

i hope this helps

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The point P(x,y) lies on the terminal side of an angle theata = -60 degrees in standard position. What are the signs of the values of x and y

2210 divided by 65 show work