# All Questions +0154586 Questions

-1
529
2

### In every numeration system (base b) there is a three-digit integer that is (b+1) times the sum of its digits. In base ten the number is 198.

Guest Feb 11, 2018
0
428
1

### how many planes of symmetry does a rectangular solid 9cm by 9cm by 12cm have

Guest Feb 11, 2018
-1
211
1

### How I can solve/simplify x/xsqrt(2)?

Guest Feb 11, 2018
-1
654
1
Hans007  Feb 11, 2018
0
915
10

### find how many digits in the base 10 number 9^(9^9) has when written in base nine

Hans007  Feb 11, 2018
Feb 10, 2018
0
394
2

### https://snag.gy/El1yav.jpg

YEEEEEET  Feb 10, 2018
0
1883
1

### The equation of line L1 is y= 3x - 2

YEEEEEET  Feb 10, 2018
0
540
4
neurolover25  Feb 10, 2018
+2
298
1
lynx7  Feb 10, 2018
-1
332
1

### Given $\delta(x) = 3x + 8$ and $\phi(x) = 8x + 7$, what is $x$ if $\delta(\phi(x)) = 7$?

Guest Feb 10, 2018
0
497
2

### The number 15 factorial ends in p zeros when converted to base 12. Find p

Hans007  Feb 10, 2018
0
1
1559
2
Hans007  Feb 10, 2018