All Answers 358477 Answers

2a+1=7,

2a=7 -1

2a=6, divide both sides by 2,

a=6/2

a=3

An alternative:

anyone please ! 

[3^5(6^4)]^3

(3^5×6^4)^3=3.1234447298506752 × 10^16

I think you are referring to the remainder when the larger number is divided by the smaller number.  The function for this is usually called mod.    mod(m,n) gives the remainder when m is divided by n.   So mod(1000,12) = 4 and mod(2000,7) = 5.  This function is in Excel.

510.1 million km²=?x10？, Not sure what you want. Do you want to square it or just multiply by 10?

510.1 X1,000,000 X 10=5,101,000,000, or in scientific notation:

5.101 X 10^9 Sq. Km

So if I type 40* 6.122 * e ^-0.15*6.122 I get the wrong answer

Let us try it: 40 X 6.122 X e^-.15 X 6.122=1,290.33497625.....etc. And that's your answer.

x – 18.7 = –12

x=-12 + 18.7=6.7

We have

sin(24 + 53/60) = about .42077

 tWhat's the questuon??

If you want to know the straight-line distance from the starting point to the terminating point, we can use the Law of Cosines to find this......we have

d^2 = 210^2 + 98^2 -2(98)(210)cos 135

d = sqrt (210^2 + 98^2 - 2(98)(210)cos 135  = about 287.76 km

x=y*sqrt(8h/g)/sqrt(2h/g) equals x=y/4

x = y*sqrt(8/2) 

x = y*sqrt(4)

x = y*2  = 2y   [as long as g,h have the same signs and are not 0 ]

Yes you can that'll give you 65a,

but you wouldn't be able to add it.

As they are not 'like terms' so if you were to add them it would stay the same.

4                                       

If you mean exactly two people, then two have probability 0.3 and 4 have probabilty 0.7, and since there are nCr(6,2) = 15 ways of choosing 2 out of 6 the overall probability is 15*0.3^2*0.7^4 = 0.324

If f(x) = x^2 - x then f(x+1)- x = x^2 which means that if x is less than zero f(x) is greater than f(x+1)-x, so your proposition can't be true for all real x.

I found it

Let L0 be unstretched length::

Using Hookes law and gravity:

a) 10*9.8 = k*deltaL1            ...(1)      using g = 9.8 m/s^2

     14*9.8 = k*(delta1+0.025)   ...(2)    2.5cm is 0.025m to keep units consistent

Subtract (1) from 2) to get 4*9.8 = 0.025k  so k = 4*9.8/0.025 kg/s^2 or k = 1568 N/m  

b)  Using k in (1) we have 10*9.8 =1568*delta1  so delta1 = 10*9.8/1568 m or delta1 = 0.063m = 6.3cm

 Since L0 + delta1 = 80cm we must have L0 = 80 - 6.3 = 73.7 cm

The force pulling the spring down is F = mass*g  where g is gravitational acceleration (9.8 m/s^2)

The spring force resisting this is given by Hooke's law: F = k*deltax where k is the spring constant and deltax is the extension

so 2.5*deltax = 0.05*9.8

deltax = 0.05*9.8/2.5 = 0.196 m or 19.6 cm

Therefore the final length of the stretched spring is 19.6 + 10 = 29.6 cm

The answer can't be 240N/m - that is not a length!!!

As x → 0 then sin(x) → x and sin(2x) → 2x,  so (x - sin(2x))/(x+sin(x)) → (x - 2x)/(x + x) → -x/2x → -1/2

If x>2 and if x<-2 then x^2>4

This becomes:  \(7(31+19)\rightarrow7\times31+7\times19\rightarrow217+133=350\)

Is it window or 2

Or is it that silly twenty one joke

Bye

Lily out

Sorry, I messed up the last line. It should be:

12/(2/3)=12 X 3/2=36/2=18 minutes to fill the 2nd,tank.

No 12 is bigger than -12 by 2 X 12=24

20L x .60% = 12L    so we have

12min / 8L  =  x min / 12  L      where x is the number of minutes we're looking for

cross multiply

12 * 12 =  8x

144 = 8x     divide both sides by 8

144/8 = x = 18 min