All Answers 358090 Answers

Is this posted correctly? Sorry never been on this website before.

\(2x\times6x\times101+1=12\times x102x\times333+516-25\)

\(12x{}^{2}\times101+1=12\times x102x\times333+516-25\)

\(1212x{}^{2}+1=12\times x102x\times333+516-25\)

\(1212x{}^{2}+1=12\times 102x{}^{2}\times333+516-25\)

\(1212x{}^{2}+1=1224x{}^{2}\times333+516-25\)

\(1212x{}^{2}+1=40592x{}^{2}+516-25\)

\(1212x{}^{2}+1=40592x{}^{2}+491\)

\(1=39380x{}^{2}+491\)

\(-490=39380x{}^{2}\)

\(\frac{-490}{39380}=x{}^{2}\)

\(-\frac{490}{39380}=x{}^{2}\)

\(x{}^{2}=-\frac{490}{39380}\)

\(x{}^{2}=-\frac{49}{3938}\)

\(x≈ 0.1115475880428244i\) or \(x≈-0.1115475880428244i\)

So that we can contribute to society...

How do I turn Decimals into Percentages?

\(\begin{array}{rcl} \text{Decimals} \\ &=& \text{Decimals}\cdot \frac{100}{100}\\ &=& \text{Decimals}\cdot 100\cdot \frac{1}{100} \qquad | \qquad \frac{1}{100} = \%\\ &=& \text{Decimals}\cdot 100\cdot \%\\ \end{array}\)

78+90 = 168

I think that is 2 + 2x2= b if so...

2x2=4

2+4=b

b=6

 I hope...

write an equation in point-slope form of the line that passes through given point and with the given slope m. (3, -4); m= 6

\(\begin{array}{rcr} x_1 &=& 3\\ y_1 &=& -4\\ m&=& 6 \end{array}\)

\(\begin{array}{rcl} \text{Line: Point Slope Form}\\ \boxed {~ \frac{ y-y_1} {x-x_1} = m ~} \end{array}\)

\(\begin{array}{rcl} \frac{ y-y_1} {x-x_1} &=& m \\ \frac{ y-(-4)} {x-3} &=& 6 \\ \frac{ y+4} {x-3} &=& 6 \\ y+4 &=& 6\cdot (x-3) \\ y+4 &=& 6\cdot x - 18\\ y &=& 6\cdot x - 18 - 4\\ \mathbf{y} & \mathbf{=} & \mathbf{6\cdot x - 22} \\ \end{array}\)

56*3= 168

I think that is correct... Just tell me my answer sucks if it isn't...

thanks for that great answer Omi67  

Dragonlance, when you put y=0 you get the x intercepts!     [NOT the y intercepts]

Could u put spaces in between each function so I may decipher it better plz...

11.536959032815 degrees

it is a bit fiddly and you are probably better off to uses a different calc for this BUT

you know it is 11 degrees

11.536959032815-11=0.536959032815

0.536959032815*60 = 32.2175419689

so  that is 32 minutes

32.2175419689-32 = 0.2175419689

0.2175419689*60 = 13.052518134  

so

11.536959032815 degrees = 11 degrees, 32 minutes and 13.05 seconds

That's nice...

9:15am 4 me

It is nightish 4 me, 3:12am...

Aditya, you are not asking the right person.

I looked at what you did and my answer was proven wrong by Heurekas simple substitution.

You have not answered in full so it is impossible to say what you did wrong but I think you have ignored a whole heap of the terms :/

Naturally occuring bromine (relative atomic mass = 79.9) consists of a mixture of two isotopes: 79Br and  81Br. Calculate the relative abundance of the naturally occurring isotopes of bromine.

Note.....7/12 is the slope of the line relating P and Q.........this means that, everytime P changes by 7, Q changes by 12

So....using a proportion.....change in P / change in Q = 

7/12  =  35/ change in Q             cross-multiply

7 * change in Q  = 35 * 12          divide by 7

change in Q =  35* 12 / 7

change in Q = [35/7] * 12

change in Q  = 5 * 12

change in Q = 60  →  (B)

maya makes trail mix by combining 1/3 of cup mixed nuts, 1/4 cup of dried fruit, 1/6 cup of chocolate morsels. What is the total amount of ingredients in her trail mix?

\(\begin{array}{rcll} \frac13+\frac14+\frac16 &=& x \qquad & | \qquad \cdot 3\\\\ 3\cdot \frac13+3\cdot \frac14+3\cdot \frac16 &=& 3\cdot x \\\\ 1+ \frac34+\frac12 &=& 3\cdot x \\\\ 1+ \frac34+\frac12 &=& 3\cdot x \qquad & | \qquad \cdot 4\\\\ 4\cdot 1+ 4\cdot \frac34+4\cdot \frac12 &=& 4\cdot 3\cdot x\\\\ 4+ 3 +2 &=& 12\cdot x\\\\ 9 &=& 12\cdot x\\\\ 12\cdot x &=& 9 \\\\ x &=& \frac{9}{12} \qquad & | \qquad :3\\\\ \mathbf{x} & \mathbf{=} & \mathbf{\frac{3}{4}} \\ \mathbf{\frac13+\frac14+\frac16} &\mathbf{=} & \mathbf{\frac{3}{4}} \end{array}\)

\(19\)

 It is possible. However, the answer is negative.

-3³ = -27

-(9/16)^{(1/27) =}  -0.979 ( corr to 3 sig. fig.)

10 ft = 120 inches  .....

N * 8  <= 120       where N is the number of shelves.......divide both sides by

N <= 15

However.....this assumes that the first shelf is at floor level and the last shelf will have an 8 inch clearance with the ceiling......

9.12/s=2.4      rearrange as

s  = 9.12 / 2.4   = 3.8

Angle that the base of the ladder makes with the ground can be found with the sine inverse [arcsin].....so we have....

arcsin (7/8)  = about 61.04°

Distance from  base of wall to ladder base,  (d) =

cos(61.04)  = d/8    multiply both sides by 8

8cos(61.04)  = d  = about 3.87 ft

We could have also used the Pythagorean Theorem to find this last measurement

sqrt(8^2  - 7^2)  =  sqrt (64 - 49)   = sqrt(15)  = about 3.87 ft