Контрольная работа по "Математике"

        Taurzhan Akylbek ИС-20-2К

1.  S=4 p R(2)= 4* 3,14* 624,0004= 7 837,445024
2. I*W*h=V  

       V= 10,2   ×   20,35   ×   34,7 = 7 202,679

3)    𝑆 = √𝑝(𝑝 − 𝑎)(𝑝 − 𝑏)(𝑝 − 𝑐)     p=(10.8+12.6+18.8)/2=42.2/2=21.1    

         𝑆 = √21.1 ( 21.1 −10,8 )(21.1 −12,6 )(21.1 −18,8 )=634.33

4) 10,2- √(5,6^2+0,45^3 )/5!=51/5-√317869/12000=10.153

       5) When x1 = 0.256 and x2 =-45.235.

          Y = -0,1 x5 + 5.6x4 - 0.789x3 + 56x2 - 0.5689.

    Please find Y1 and Y2 by using x1 and x2 correspondingly.

    Answer: Y1=14.973116     Y2= -2 746 262,6539

6) 20 miles = 32,186 kilometers

7) 155 week = 26 040 hours

      8) 100 carats = 20 grams

      9) 95 pints = 44,95176 liters

      10)  70 British gallon = 318,2263 liters

      11)  1000 horsepower = 745,6999 kilowatts

12) 25 hectares = 250 000 square meters

13) 17 years old; 7 months; 3 weeks; 5 days  (6448 days)  

        14) Apple MacBook Pro 13 

             729.000 tenge;   15% for  2 years; monthly payment 35.347 tenge.

        15) house: 50.000.000; with initial payment: 2500000 tenge; 5 years 10%; monthly payment: 1.009.234 tenge