3x + 6 + 4 = 6 × 2 + 10
3x + 6 + 4 = 12 + 10
3x + 10 = 12 + 10
3x + 10 = 22
3x = 22 - 10
3x = 12
x = 12/3
x = 4
The answer is: x = 4.
W-13=15 add 13 on both sides to isolate variable and you get w=13+15, w=28
Answer:
This equation is unsovable
Step-by-step explanation:
Answer:
The probability is 0.1944
Step-by-step explanation:
Since we are rolling two dice, the number of possible results is 36
for us to get a sum of seven, these are the possible results;
1 and 6
6 and 1
2 and 5
5 and 2
3 and 4
4 and 3
The probability of rolling a sum of 7 is 6/36
For a sum of 12, we only have one possible result and that is 6,6
So the probability here is 1/36
If we have or in probability, we add up the individual probabilities
So, our probability here will be;
1/36 + 6/36
= 7/36 = 0.1944
Answer:
Step-by-step explanation:
The given quadratic must be rewritten in standard form before anything else is done: -2x^2 + 8x - 8 = 0. The coefficients of the x terms are {-2, 8, -8}.
The discriminant b^2 - 4ac is therefore (8)^2 - 4(-2)(-8), or 64 - 64, or 0.
A zero discriminant points to two real, equal solutions.
