All Answers 356462 Answers

First one (thers are similar)

5 + 2x = 25     subtract 5 from both sides of the equation to get

2x = 20            now divide both sides by to to get

x = 10 

CHECK:    5 + 2(10) = 25

                  5 + 20 = 25

                       25   = 25     !   Verified !  

You can do the others....

For this quadratic equation, max will occur at t = - b/2a   where a = -16   and b = 576

x³ = 6 x²

^{then   x = 6}          

Question: If the volume and the surface area of a cube have the same numerical value, then what is the length of the side of that particular cube?

The interior angles of a triangle sum to 180 degrees

soooo      x      +   5x    +   4x-2     = 180       solve for 'x'  then calculate the angles

14000 / (7*2) = 1000 students

14000 / 7 =  kg  per day = 2000 kg per day

2000 kg / day      /   2kg/ student-day = 1000 students  = 1000 students

I know I must be annoying for saying all of the answers are wrong, but unfortunately there's a problem with this one too. The problem states that $a, b, c$ must be positive integers less than 13, so $0$ doesn't fit this requirement. However, thank you very much for trying to solve this for me!

idk man who knows

volume = x * x *x = x³

x³ = 73   cm³

x = 4.179339

S.A. =   6 *  (x²) = 104.8  cm³

Take the cube root and square it, then multiply it by 6

Find the slope which is m. (I think you know how)

Then plug m in the equation y = mx + b.

Then plug in one of the points to find b.

I don't understand part c

Hint: Use law of sines

Note that    x+1     and    4x -56 = 180 degrees (straight line)

x+1      +     4x-56    = 180     solve for x, then calculate the values of the angles

A    assuming 30 days/month       30 days/month  x   2 kg /day   = ...........  kg/month

B     800 students    *   2kg / student-day   x 365 day/yr = ...........   kg / yr

C     14 000  kg/wk   *   1 wk/7day  *  1 student / 2 kg /day   =  ...........students

D     'The average high school student generates about 2 kg of garbage every day.'     Estimate

-4    +    1/4 ( 24- -4) = 3

Hey Melody! The square brackets usually represent area.

We know that the area of ABC is 10, so its height to AB  from C must be 20/6=10/3. This same height is the height to BD from C, so we can compute (10*10/3)/2=50/3. 

Guest, you were close, but I think you forgot to divide by two at the end!

Hope this helped!

I seriously neeed help. PLS

a=1; b=1;d=2*a + 2*b; if(d==a * b, goto4, goto5);printa, b; a++;if(a<1000, goto2, 0);a=1;b++;if(b<1000, goto2, discard=0; 

Length           Width

6                      3
4                      4

Aww dang EP got it before me.

In 5 minutes  there will be only 3/4 of the lawn left to mow.

Guy can mow 3/4   in 15 min     Lazar can mow 3/4 in   22.5 min

1/15   +    1/22.5    = 1/x     solve for x = 9 mins to finish the lawn

1:00 pm   + 5 min + 9 min = 1:14 PM

pls help

15 oz  @ 40%    =   .40 (15)   oz of cashews

 45 oz @ 60%    =    .60 (45)           cashews    

New total = 15 + 45 = 60 oz                  

%      =     {  .40(15) + .60(45) }  /  60    x 100% = .........

Looking at a few sites it seems there is some variability in estimates of the radius of a single atom of gold.  However, 144pm seems like a reasonable value to use.  (1pm is 10^-12m).

1/10 * 4x     =   4x/10   =  2x/5       Pick one