All Answers 358156 Answers

(-1+1-92)2+72/12     simplify within the parentheses, first

(0 - 92)2 + 72/12

(-92)2  + 72/12       perform the multiplication, simplify the fraction

-184 + 6

-178

    (-1+1-92)2+72/12= -178

x/8+x/3=3/4     mutiply through by the common denominator → 24

3x + 8x  = 18

11x = 18     divide both sides by 11

x = 18/11

what does x equal if the equation is x/8+x/3=3/4

x = 18/11

parallel to 3x+4y=12 through (4,-5)

This is the form we want  →   y = mx + b       where  m = the slope

We want y by itself on the left side......so

4y  = -3x + 12      divide both sides by 4

y  = (-3/4)x  + 3       so the slope is (-3/4)

And parallel lines have the same slope...so...uing the point-slope form ,we have

y - (-5)  = (-3/4)(x - 4)

y + 5  = (-3/4)x + 3       subtract 5 from both sides

y = (-3/4)x - 2

----------------------------------------------------------------------------------------------------------------------------

parallel to : 1x+2y=5 through (-6,2)

Again, get y on the left side

2y  = -1x + 5     divide through by 2

y = (-1/2)x + 5/2   

So the slope = -1/2........now just folllow what I did in the first problem

-----------------------------------------------------------------------------------------------------------------------------

parallel to y=-2/5x-10 through (10,-3)

Here, we already have the form we need.......the slope is (-2/5)....and this is worked just like the other two

x)=x^2+1/x^3-4x^2+6

3x^5+x^4-6 x^3 = 1 

x=-1.55946 and x=-0.562695 and x=1.30864

fish actually it equals 4

 4 

Use the formula: Density=Mass/Volume.

parallel to 3x+4y=12 through (4,-5)

parallel to : x+2y=5 through (-6,2)

parallel to y=-2/5x-10 through (10,-3)

just for my homework 

y=1/3x-2 through (-3,-1)

Parallel lines have equal slopes.......and the slope of the given line is 1/3 ...so we have

y - (-1)  = (1/3)(x - (-3))

y + 1  = (1/3)x + 1       subtract 1 from both sides

y = (1/3)x

A =  W x L

2052 = 38 x L    divide both sides by 38

54 yds = L

12x+8*3/4x=4176

\(12x+8*\frac{3}{4}x=4176\\\\ 12x+2*\frac{3x}{1}=4176\\\\ 12x+6x=4176\\\\ 18x=4176\\\\ 18x/18 = 4176/18\\\\ x=232 \)

This is just the product of the probabilities that it rains on Monday and that it subsequently rains on Tuesday, namely

(3/5)*(4/7) = 12/35 ≈ 0.343

Note that 3.14159 is also an approximation to pi.  Pi has an infinite decimal expansion, so cannot be expressed exactly in decimal form.

Thank you

Just press Enter or = again after the decimal.

If you take cold (negative) air out of a room then the room gets warmer.

so  - - = +

-8 - - 6 = -8 + 6 = -2

You have made a small error

2(x-10)+1=60

2x-20 +1 =60

2x  -19 = 60

2x        = 79

x=  79/2 

x=39.5

now 0.5 = 1/2   so

39.5 = 39 and a 1/2

The fraction part of the calc may not be working properly but you do not need a calc for this :)

1999478

in the normal stress, the tensile force will divided by 2 because there are two links.

 right ? 

Do you mean    \(\frac{738}{2+4} \;=\;\frac{738}{6}\;=\;123\)

Are there two ways to solve the problem "4n-7+2n=7"?

Second way to solve:

\(\small{ \begin{array}{rcl} 4n-7+2n &=& 7 \\ 4n - 7 + 2n - 7 &=& 0 \\ 2n + 2n -7+2n-7 &=& 0 \\ 2n + (2n-7)+(2n-7) &=& 0 \\ 2n + 2(2n-7) &=& 0 \\ 2(2n-7) &=& - 2n \\ 2n-7 &=& -n \\ 3n &=& 7 \\ \mathbf{n} & \mathbf{=} & \mathbf{ \dfrac{7}{3} } \end{array} } \)

You need to use 

M_Cu*cp_Cu*(T_Cu - T_f) = M_H20*cp_H20*(T_f - T_i) + M_Al*cp_Al*(T_f - T_i)

where M's are masses; cp's are specific heat capacities (which you don't supply), T_Cu is the initial temperature of the copper, T_i is the initial temperature of the water and aluminium and T_f is the final temperature.

Once you supply the values of the specific heats you can then calculate the final temperature, T_f.