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olasank [31]
3 years ago
7

Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 3. (Input decimals only, such as 12.71, as the answer.)

Mathematics
1 answer:
Natasha2012 [34]3 years ago
5 0

Answer:

87.92

Step-by-step explanation:

3.14(a² + ab)  where  a = 4  and  b = 3

Plug the given numbers into the appropriate values.  Remember to follow PEMDAS.

3.14((4)² + (4)(3))

3.14(16 + 12)

3.14(28)

87.92

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Assume that one day's labor in Argentina can produce either 20 units of cloth or 2 units of wine, while in Chile one day's labor
11111nata11111 [884]

Answer:

cloth production increase is 16  units

wine production increase  is 8 units

Step-by-step explanation:

Given data

Argentina produce cloth = 20 units

Argentina produce wine = 2 units

chile  produce cloth = 24 units

chile  produce  wine = 12 units

to find out

increase in combined output

solution

we know according to question Argentina transfers 2 units of labor from wine to cloth and Chile transfers 1 unit of labor from cloth to wine

therefore cloth production increase = Argentina produced total cloth - before transfer chile  produce cloth ...........1

we can say that Argentina produced total cloth is 2 × 20 = 40  units

so from equation 1

cloth production increase = 40 - 24 = 16  units

cloth production increase is 16  units

and we now can say wine production increase = chile  produce  wine - before transfer  Argentina produce wine  .............2

so Chile produced total wine is 1  × 12 = 12  units

and Argentina produce wine with 2 units of labor  (2 ×  2) =  4

so from equation 2

wine production increase = 12 - 4 = 8 units

wine production increase  is 8 units

8 0
4 years ago
Convert the angle 0=23/20 radians to degrees,
MrRa [10]

Answer:

207°

Step-by-step explanation:

3 0
3 years ago
Is the simplified form of 2 square root of 3 − 2 square root of 3 rational? (1 point)
postnew [5]
<h2>Answer:</h2><h2>Yes, the simplified form of 2 square root of 3 − 2 square root of 3 is rational.</h2>

Step-by-step explanation:

The given expression is 2 \sqrt{3}  - 2 \sqrt{3}

After performing the subtraction operation, the result is 0 as the terms are equal and opposite in sign, they cancel each other.

Rational numbers are those which can be expressed in the form of fractions, decimals, e.t.c

Since 0 can be expressed as a fraction, it is a rational number.

For eg: \frac{0}{2} = 0,

Hence the result of the given expression is a rational number.

7 0
4 years ago
Congratulations! You were the 10th caller on the KMTH morning show and you just won $10,000. After you calm down, you decide to
Dmitrij [34]

Answer:

You will have $20,495.30

Step-by-step explanation:

If interest is compounded yearly, then n = 1; if semi-annually, then n = 2; quarterly, then n = 4; monthly, then n = 12; weekly, then n = 52; daily, then n = 365; and so forth, regardless of the number of years involved.

3 0
4 years ago
For every 30 minutes of tv airtime,there are 8 minute commercials.If 90 minutes of tv airtime are aired,how many minutes of comm
Alex777 [14]

Answer:

For 90 minutes of TV there will be 24 mins of commercials


Step-by-step explanation:

You start with 30 and keep adding 30 mins each time until you get to 90. (So..30..60..90) each time you add 30mins you add 8 more minutes to the commercials)

30 mins tv----8mins commercials

60 mins tv----16mins commercials

90 mins tv----24mins commercials


Hope this helps, good luck!


8 0
4 years ago
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