Bosnian

(1.9*10^4)*(8.4*10^5)= (1.9*8.4)*(10^4*10^5)= 15.96*10^9= 1.596*10*10^9= 1.596*10^10

14 years ago

D. f( x ) = 4 - x for x = 1 f ( x ) = 4 - 1 = 3 for x = 2 f ( x ) = 4 - 2 = 2 for x = 3 f ( x ) = 4 - 3 = 1 for x = 4 f ( x ) = 4 - 4 = 0

12 years ago

For: y=x Technically there is no tangent line to a straight line because the definition of tangent means a line a touching at one point. Answer is: x^2 and x^3

14 years ago

( 5 + 7 ) - ( 9 + 2 ) = 12 - 11 = 1cm

14 years ago

5/8=0.625 0.625*100%=62.5% 5/8=62.5% 5/8 is greater than 58%

14 years ago

Qadratic equation; y=ax^2+bx+c In your case: a=3 b=-1 c=-4 Discriminant: D=b^2-4ac D=(-1)^-4*3*(-4) D=1+48 D=49 When D>0 equation hawe two real solutions. x1=[-b-sqroot(b^2-4ac)]/2a x1=[-(-1)-sqroot(49)]/(2*3) x1=(1-7)/6 x1= -6/6 x1= -1 x2=[-b+sqroot(b^2-...

14 years ago

Second equation: 2x-y=0, 2x=y, y=2x Firs equation:3x-y=-4 3x-y=3x-2x= x=-4 x=-4 y=2x=2*(-4)=-8 y=-8 Check of result: First equation: 3x-y=3*(-4)-(-8)=-12+8=-4 Second equation: 2x-y=2*(-4)-(-8)=-8+8=0

15 years ago

-9x+2x=-7x (-7x)^3=(-7)^3 *x^3=-343x^3 8x-12x=-4x (-4x)^3=(-4)^3 *x^3=-64x^3 -343x^3 +(-64x^3)= -343x^3-64x^3= -407x^3

15 years ago

Leng of path is product of speed and time. Leng of path of first train is 33*t Leng of path of second train is 38*t Sum of that two path must be 284 miles. 33*t+38*t=71*t 71*t=284 Divide with 71 t=284/71= 4 hours

15 years ago

Car used 25/200= .125 liters per one mile For 450 liles car will used: 450* .125= 56.25 liters Or: (450/200)*25= 2.25*25= 56.25 liters

15 years ago

Draw right triangle and high marked wid h, lenght of shadow marked wit s. Angle off 66° betwen horizontal line and sloping line mark with á. Then: tan(á)=h/s h=s*tan(á) h=20*tan(66°)=20*2.246037=44.92074ft

14 years ago

In My answer á mean Greek letter Alpha

14 years ago

A prime number can be divided, without a remainder, only by itself and by 1. (It must be a positive whole number greater than 1) Prime nuber betwen 2 and 100 is: 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 53 59 61 67 71 73 79 83 89 97

14 years ago

You can also in google type prime numbers chart and click on some of that links.

14 years ago

Question 1-5: slope is tangens of angle betwen x-axis and line. Equation is: tan(alpha)=(y2-y1)/(x2-x1) Firs 5 question is O.K

14 years ago

Sorry. Answer for question 5 is not correct. 2x+3y=4 , 3y=-2x+4 (Divided with 3) y=(-2/3)x+4/3 Slope (-2/3) 3x+2y=6 , 2y=-3x+6 (Divided with 2) y=(-3/2)x+3 Slope(-3/2)

14 years ago

Question 6 (1/2)x+2y=1 , 2y=(-1/2)x+1 (Divided with 2) y=(-1/4)x+1/2 Slope(-1/4) 4x-y=3 , y=4x-3 (Slope 4) Perpendicular

14 years ago

Question 7 6x-9y=4 , -9y=-6x*4 (Divided with -9) y=(-6/-9)x-4/9 y=(2/3)x-4/9 Slope (2/3) (2/3)x-y=11 , y=(2/3)x-11 Slope (2/3) Parallel

14 years ago

Best way to check that is that you drive this lines in grid.Is enough 2 points for any lines. For question 5 draw lines (-2/3)x+4/3 and y=(-3/2)x+3 For question 6 draw lines (-1/4)x+1/2 and y=4x-3 For question 7 draw lines (2/3)x-4/9 and (2/3)x-11

14 years ago

Question 8 y-7=0 y=7 For all values of x y=7 That is line parallel with x-axis 3x=5 (divided with 3) x=5/3 For all values of y x=5/3 That is line p0arallel with y-axis

14 years ago

27 1/3=27+(1/3) 27*3=81 27=(81/3) 27+(1/3)=(81/3)+(1/3)=82/3

14 years ago

If dimeter is 2m perimeter is diameter*pi 2*pi=2*3,14159=6,28318 m (3000/6,28318)=477.465 times

14 years ago

All next number is previous number-3 9-3=6 6-3=3 3-3=0 0-3=-3

14 years ago

6 11/12=6+(11/12) 6*12=72 , 6=(72/12) 6+(11/12)=(72+11)/12= (83/12) 4 5/12=4+5/12 4*12=48 , 4=(48/12) 4+5/12=(48+5)/12= (53/12) 6 11/12-4 5/12=(83/12)-(53/12)=(30/12)= (5*6)/(2*6)=5/2

14 years ago

4ã7(2ã3+3ã6- ã7) =4*2*ã7*ã3 +4*3*ã7*ã6 -4*ã7*ã7 =8*ã21 +12*ã42 -4*ã49 =8*ã21+ 12*ã(21*2) -4*7 =8*ã21 +12*ã21+ 12*ã2- 28 =4*2*ã21 +4*3*ã21 +4*3*ã2 -28 =4*ã21*(2+3*ã2)-28

14 years ago

Correct answer.

14 years ago

Perimeter is 2*L+2*W= 2*(L+W) L=5*W-15 Perimeter=2*(5*W-15+W)=2*(6*W-15) =12W-30=147 m ,147=12*W-30 147+30=12W , 12W=177 , W=177/12 L=5*(177/12)-15=(885/12)-(180/12) =(705/12) L=705/12 Remark 15=(180/12) Perimeter=2*(L+W)=2*((177/12)+(705/12)) =2*(882/12)...

14 years ago

(1/8)+x=(1/5) x=(1/5)-(1/8) (1/5)=(1/5)*(8/8)=(8/40) (1/8)=(1/8)*(5/5)=(5/40) x=(1/5)-(1/8)=(8/40)-(5/40)=(8-5)/40 =3/40

14 years ago

(4.000/0.5)=8.000

14 years ago

Correct answer.

14 years ago

0.32=32*0.01 8.64=32*0.027 (0.32/8.64)=(32*0.01)/(32*.027)=(0,01/0.027)*(1000/1000)=(10/27)

14 years ago

t=30% of u t=0.3*u Remark 30%=(30/100)=0.3 u=60% of v u=0.6*v Remark 60%=(60/100)=0.6 t=0.3*u= 0.3*0.6*v= 0.18*v t=0.18*v t=18% of v Remark 0.18=(18/100)=18%

14 years ago

L=2W+6 Perimeeter=2W+2L=2*(W+L)=2*(W+2W+6) =2*(3W+6)=6W+12 Perimeter is 36 inches 6W+12=36 , 6w=36-12=24 Divided with 6 W=(24/6)=4 W=4 L=2W+6=2*4+6=8+6=14 L=14 Perimeter 2*(L+W)=2*(4+14)= 2*18= 36in

14 years ago

x*ln(x)-2x<0 x*ln(x)<2x Divided with x ln(x)<2 e^2=7.389 x<7.389 x*ln(x)-2x>0 x*ln(x)>2x Divided with x ln(x)>2 e^2=7.389 x>7.389

14 years ago

(4^x2)^2=16x^4 (16x^4/1)*(1/4^5x)=16x^4*4^5x=64x^4*5^x

14 years ago

h-hight , a-thirth side of triangle al-angle ALPHA , A-area sin(al)=(h/6) , h=6*sin(al) cos(al)=(a/2)/6 =( a/12) , a=12*cos(al) A=(1/2)a*h=(1/2)*6*sin(al)*12*cos(al) =(1/2)*72*sin(al)*cos(al) =36*sin(al)*cos(al) =18*(2*sin(al)*cos(al))=18*sin(2al) =dA/dal...

14 years ago

h=6*sin(45‹)=6*(1/ã2)=6/ã2 a=12*12*cos(45)=12*(1/ã2)=12/ã2 A=(1/2)a*h=(1/2)6/ã2*12/ã2 =(1/2)*(1/ã2)/*1/ã2)*72=(1/2)*(1/)*72 =(1/4)*72= 18 Largest posible area= 18

14 years ago

ã2 is square root Area=(1/2)*(1/2)*72=18

14 years ago

14+22-36+36= 36

14 years ago

1 third= 1/3 18/3= 6kg

14 years ago

Numebers is previous number multiplied with 3 6th term 81*3=243 nth term an=a*r^(n-1) Remark: a=1 , r=3 an=1*3^(n-1) an=3^(n-1)

14 years ago

1 5/9=1+5/9 1 2/9=1+2/9 1+5/9-(1+2/9)= 1+5/9-1-2/9 = 5/9-2/9 = 3/9= 1/3

14 years ago

2*x+c+1-31=0 2*x=31-1-c =30-c Divided with 2 x=(30-c)/2

14 years ago

-3/10= -30/100 (-30/100)-(5/100= (-35)/100 =(-5*7)/(5*20)= (-7)/20

14 years ago

9/12-8/12= 1/12

14 years ago

22=2*11 33=3*11 22/33=(2*11)/(3*11)= 2/3

14 years ago

a+24=9a 24=9a-a 24=8a 8a=24 Divided with 8 a=3 Cheking: 3/(3+24)=3/(27)= 3/(3*9)= 1/9

14 years ago

(136,800,000/250,148,571 )*100% = 0.546875*100% = 54.6875%

14 years ago

-7x+5x=10-23+21 -2x=8 Divided with (-2) x=-4

14 years ago

10*(-2c)*3=( -20c)*3= -60c

14 years ago

4r(3r-7)= 4r*3r-4*7 =12r^2-28

14 years ago

THAT IS NOT CORRECT EQUATION!!! r/1=r 1-r/1+r=1-r+r=2/3 1=2/3 THAT IS NOT CORRECT

14 years ago

y=ax+b=0 ax+b=0 ax= -b Divided with a x=(-b)/a

14 years ago

5r-5=2r-8-6 5r-2r= -8-6+5 3r=-14+5 3r=-9 Divided with 3 r=(-9)/3 r=-3

14 years ago

-(x-10)=7 -x+10=7 -x= 7-10=-3 -x=-3 Multiply -x with -1 and -3 with -1 x=3

14 years ago

On your PC you have good calculator. Start¨Programs¨Accessories¨Calculator When you open Calculator clik on View, then click Scientific.In up left angle you have numbers systems Hex Dec Oct and Bin. Click Hex.Use numbers and letters in down right angle...

14 years ago

You will see representation of this nuber in some other numbers system.

14 years ago

5 3/4=5+(3/4)=5+(9/12)=(60/12)+(9/12)=69/12 2 5/6=2+5/6=2+(10/12)=(24/12)+(10/12)=34/12 (69/12)-(34/12)= 35/12=(24/12)+(11/12) =2+(11/12)= 2 11/12

14 years ago

3.67 is less of 3.7 3.67=367/100 3.7=370/100 367 is less of 370 3.67 is less of 3.7

14 years ago

(1/3)+(1/3)=2*(1/3)=(2/3)

14 years ago

15-(-4)=15+4=19

14 years ago

L=Lenght W=Width A=Area D=Diagonal L=3*W , A=L*W= 3*W*W= 3*W^2=192=3*W^2 3*W^2= 192 W^2=(192/3)=64 W=sqroot(64)= 8 W=8 L=3*W=3*8= 24 L=24 D=sqroot(L^2 + W^2) D=sqroot(24^2 + 8^2)=sqroot(676+ 64) =sqroot(640)=sqroot(64*10) sqroot(64)=8 D=8*sqroot(10)

14 years ago

One correction. My answer is correct, but I make one typefeler. 24^2=576 not 676 D=sqroot(24^2 + 8^2)=sqroot(576+ 64) =sqroot(640)=sqroot(64*10) sqroot(64)=8 D=8*sqroot(10)

14 years ago

final amount=31.000*(1+interes/100)^29 Becouse 5% = 5/100= 0.05 Final amount=31,000*(1+0.05)^29 =31,000*1.05^29 =31,000*4.116136=127600.216

14 years ago

You must calculate Discriminant Ä For quadratic equation: ax^2+bx+c , Ä=b^2-4*a*c If the discriminant is positive, then there are two distinct roots. If the discriminant is zero, then there is exactly one distinct real root, sometimes called a double root...

14 years ago

Ä is Greek letter Delta(letter like triangle). y=ax^2+bx+c In your case a=k+1 , b=2k , c=k-1 Ä=b^2-4*a*c Ä=(2k)^2-4*(k+1)*(k-1) =4k^2-4*(k^2+k-k-1)=4k^2-4*(k^2-1) =4k^2-4k^2-(-4)=0+4=4 You equatin have 2 real roots

14 years ago

In google type "quadratic equation" Then click on en.wikipedia link which will appered. On this en.wikipedia page you have all about quadratic equation.

14 years ago

3(-p)*(-2q)=(-3p)*(-2q)= 6pq Becouse product of two negative numbers is positive number.

14 years ago

(ab)^2= a^2*b^2

14 years ago

(w+p)(w^2-wp+p^2) =w^3-w^2*p+w*p^2+p*w^2-w*p^2+p^3 =w^3+p^3

14 years ago

33w=11w+(24*11) 33w=11w+264 33w-11w=264 22w=264 w=(264/22)= 12

14 years ago

10^7=10.000.000 8.8*10.000.000= 88.000.000

14 years ago

When x=8 (x-8)=0 (x-8)*(x+6)=0*(x+6=0 When x=-6 (x+6)=0 (x-8)*(x+6)=(x-8)*0=0 Solutions is 8 and -6

14 years ago

In triangle you must have 3 elements. 3 sides OR 2 sides and 1 angle OR 1 side and 2 angles You can not solve triangle with 2 elements.

14 years ago

Perimetre of pentagon=5*t where t=side lenght t=perimeter/5=(35/5)=7 t=7 Go to en.wikipedia org Type pentagon and you will have all about pentagon,including formula for Area.

14 years ago

M=Roberts money , R=Rest of money After he by stereo he have M-(3/5)M =(5/5)M-(3/5)M=(2/5)M , Becouse 1=(5/5) (1/6) of that he spent for lunch. (1/6)*(2/5)M=(2/30)M=(1/15)M Becouse (2/30)=(1/15) He totaly spent (3/5)M+(1/15)M =(9/15)M+(1/15)M=(10/15)M=(2/...

14 years ago

Sorry my first ansver is wrong. I think that he come back with 24$. Wrong. Sorry. He have 24$ He pax stereo: 24*(3/5)=(72/5)= 14.4$ After that he have: 24-14.4= 9.6$ 1/6 of hat he spent for lunch. Price of lunch is 9.6/6=1.6$ Rest of money is 9.6-1.6=8$

14 years ago

90=2*45

14 years ago

(3/4)*1.17=(3*1.17)/4= 3.51/4 = 0.8775h 0.8775*60=52.65 min 52+(0.65*60)= =52 min 39 sec

14 years ago

B=3A , C=6A-1 Sum of angles in triangle is 180° A+B+C=180° A+3A+6A-1=180 10A-1=180, 10A=180+1=181 Divided with 10 A=18.1° B=3A= 3*18.1=54.3° C=6A-1= 6*18.1-1=108.6-1=107.6° A=18.1°=18+(0.1*60)= 18° 6´ Besouse 1°= 60´ B=54.3°=54+(0.3*60)= 54° 18´ C=107.6°=...

14 years ago

y=ax^3+bx^2+cx+d=a*(x-x1)*(x-x2)*(x-x3) where is x1,x2,x3 coordinates of x-intercepts In this case x1=4, x2=-3 and x4=2 y=a*(x-4)*(x+3)*(x-2) =a*(x^2-4x+3x-12)(x-2) =a*(x^2-x-12)*(x-2) For x=0 y=a*(-12)*(-2)=24*a= 12 Divide dwith 24 a=12/24=1/2 y=(1/2)*(x...

14 years ago

x^2-6x(3-6x)=x^2-18*x+36*x^2=37x^2-18x =x*(37x-18) Solutions y=0 if x=0 and 37x-18=0 37x=18 Divided wit 37 x=(18/37)

14 years ago

(dy/dx)=2x+a Funcktion have extreme value where is (dy/dx)=0 2x+a=0 ,2x=-a, Divided with 2, x=-(a/2) For x=7 , 7=(-a/2) , Multipled with 2 7*2=-a , 14=-a , Multilpled with (-1) a=-14 y=x^2+ax+b x=7 y=6 a=-14 6=(-a/2)^2+a*(-a/2)+b 6=(14/2)^2-14*(-14/2)+b 6...

14 years ago

Proof that is minimum. Function have minimum if (dy/dx)=0 and (d^2y/dx^2)>0 If second derivate greater than zero. Second derivate is derivate of first derivate. In this case: (d^2y/dx^2)=d(2x)/dx=2>0 That is minimum

14 years ago

x^2-3x-4-x^2-11x=24+4 -14x=28 Divided with -14 x=28/(-14)=-2

14 years ago

Distance between 2 points is: L=sqroot((x2-x1)^2+(y2-y1)^2) Heare: x1=-4 y1=6 x2=3 y2=-5 L=sqroot((3-(-4))^2+(-5-6)^2) =sqroot((3+4)^2+(-11)^2) =sqroot(7^2+(-11)^2) =sqrot(49+121) =sqroot(170)

14 years ago

Sum of ratios is: 4+5+6=15 A=(4/15)*180°=(4*180°/15)=(720°/15)=48° B=(5/15)*180°=(180°/3)=60° Becouse (5/15)=(1/3) C=(6/15)*180°=(6*180°/15)=(1080°/15)=72° A= 48° , B= 60° , C=72° A+B+C=48°+60°+72°=180°

14 years ago

90°=(360°/4) OR 360°=4*90° Area of circle is: 4*36=144

14 years ago

7-side polygon is heptagon or septagon. Go to wikipedia and type "heptagon" On en.wikipedia you have all about heptagon. Area is: A=3.633912444*a^2 a is side lenght Area of smaller heptagon is: A1=3.633912444*(a1)^2 a1 lenght side of smaller polygon Large...

14 years ago

V-Volume V=20 V=L^2*h L^2*h=20 Divide with (L^2) h=20/(L^2) Area of square is L^2 Areao of rectacangle L*h Total price=2*Area of square*(2$)+4*Area of rectacangle*(3$) P-Price P=2*(L^2)*2+4*L*h*3 =4*L^2+12*L*20/(L^2) =4*L^2+240*L/(L^2) =4*L^2+240/L (dP/dL...

14 years ago

Sometimes you easy find formulas for homeworks probles.Just in wikipedia type what you need. In this case type sphare and you will have all about spare. Sometime use wikipedija.

14 years ago

48=6*8 56=7*8 (48/56)=(6*8)/(7*8)=6/7

14 years ago

a-b=7 , a=7+b a+b=25 (7+b)+b=25 (Becouse a=7+b) 7+2b=25 2b=25-7 2b=18 Divided with b=(18/2)=9 a=7+b=7+9=16 a=16 , b=9 a-b=16-9=7 a+b=16+9=25

14 years ago

a=leght of side of original square b=leght of side of new square b=a+7 a=b-7 Area of new square is: A=b^2=121 b=sqroot(121)=11 a=b-7=11-7=4 Length of a side of the original square is 4

14 years ago

One of angle in right angle triangle is 90° Other two angles is x+17 Sum of angles in triangle is 180°. Thats mean: 90°+2*(x+17)=180° 2*(x+17)=180°-90°=90° 2*(x+17)=90° Divided with 2 x+17=(90°/2)=45° , x+17=45° x=45-17=28° x=28° Checking: 90°+2*(x+17)=90...

14 years ago

27%=(27/100) 27%*500=(27/100)*500 =(27*500)/100 =27*5=135 Correct answer

14 years ago

ln(1/x)= ln(1)-ln(x) ln(1))=0 ln(1)-ln(x)=0-ln(x)= -ln(x) ln(1/x)=-ln(x)

14 years ago

(4/3)=(b/21) Multiply with 21 21*(4/3)=b b=(21*4)/3 b=(84/3) b=28 28=4*7 21=3*7 (28/21)=(4*7)/(3*7)=(4/3)

14 years ago

3x^2-5*x+1=a*(x^2+2*b*x+b^2)+c Becouse): (x+b)^2=x^2+2*b*x+b^2 3x^2-5*x+1=a*x^2+2*a*b*x+a*b^2+c 3x^2-5*x+1= =a*x^2+(2*a*b)*x+(a*b^2+c) a*x^2=3*x^2 Divide with x^2 a=3 (2*a*b)*x=-5x Divide with x 2*a*b=-5 2*3*b=-5 6b=-5 Divide with 6 b=(-5/6) a*b^2+c=1 3*(...

14 years ago

y=a*x^2+b*x+c 3*x^2+2*x+6=10 3*x^2+2*x+6=10 3*x^2+2*x+6-10=0 3*x^2+2*x-4=0 a=3 , b=2 , c=-4 x1=(-b-sqroot(b^2-4*a*c))/(2*a) x1=(-2-sqroot(2^2-4*3*(-4)/(2*3) =(-2-sqroot(4+48)/6 =(-2-sqroot(52))/6= =(-2-sqroot(4*13))/6 =(-2-2*sqroot(13))/6 =(-2/6)*((1+sqro...

14 years ago