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Ira Lisetskai [31]
3 years ago
10

Answer please I will give 12 points Thanks

Mathematics
2 answers:
Jobisdone [24]3 years ago
7 0
Im not 100% sure but I do believe it’s A=50.272
arsen [322]3 years ago
5 0

Answer:

A=50.3

Step-by-step explanation:

A= πr²

A= π x 4²

A= 3.142 x 16

A=50.272

A≈50.3

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According to Boyle’s law, PV= K, what was the volume at the time of the first measurement given the following information? Round
Temka [501]
<h2>Hello!</h2>

The answer is:

The first measurement of volume is equal to 835.23 mL.

<h2>Why?</h2>

Boyle's Law equation can be used when the temperature is kept constant, and it establishes a relation between the pressure and volume, showing that when an ideal gas is kept constant, the pressure and volume are inversely proportional.

So, we Boyle's Law equation states that:

P_{1}V_{1}=P_{2}V_{2}

Where,

P_1=FirstPressure\\V_1=FirstVolume\\P_2=NewPressure\\V_2=NewVolume

Now, if we are looking for the first volume measurement, we need to rewrite the equation as follow:

P_{1}V_{1}=P_{2}V_{2}\\\\V_{1}=\frac{P_{2}V_{2}}{P_{1}}

So, substituting the given information and calculating, we have:

V_{1}=\frac{8.59atm*527mL}{5.42atm}

V_{1}=\frac{4526.93atm.mL}{5.42atm}=835.23mL

Hence, the first measurement of volume is equal 835.23 mL.

Have a nice day!

8 0
3 years ago
Find f(-2) for the function f (x) = 3x^2-2x+7
barxatty [35]

Answer:

23

Step-by-step explanation:

plug -2 in for x then solve

4 0
3 years ago
Solve for a. r=ab/a+b+c
Marta_Voda [28]

Answer:

r(A + B) = rA + rB,. (4). (r + s)A = rA + sA,. (5) r(sA)=(rs)A;. (6). A(BC)=(AB)C,.

4 0
2 years ago
What is the sequence of transformations ?????????
Alexandra [31]
En matemáticas, una transformación de sucesiones es un operador que actúa en un espacio determinado de una sucesión.
8 0
3 years ago
Kevin is making us a call model of the Statue of Liberty which is 306 feet tall if the model is 1/10 of the actual statue of Lib
anastassius [24]

Model of Statue of Liberty is 30.6 feet tall.

<u>Step-by-step explanation:</u>

Given the Statue of Liberty is 306 feet tall. If the model is 1/10 the actual size of the Statue of Liberty.

Actual size of the statue = 306

Model is \frac{1}{10} of the actual size of the Statue of Liberty

Height of model = \frac{1}{10}  of the actual size

                           =  \frac{1}{10} * 306

                           =  30.6 feet

Model of Statue of Liberty is 30.6 feet tall.

6 0
3 years ago
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