The answer is -40
-2(12-2(-4))
-2(12+8)
-2x20
-2x20 = -40
Answer:
Option B: 0.4
Step-by-step explanation:
We have 20 dots.
Such that each column represents the repetitions for each proportion.
So:
0.1 -> 3 times
0.2 -> 1 time
0.3 -> 4 times
0.4 -> 6 times
0.5 -> 3 times
0.6 -> 3 times
Now we can compute the mean of these values, and that will be the best estimation we can make with the given data.
Remember that for a set of N values:
{x₁, x₂, ..., xₙ}
The mean is:

In this case we have the set of 20 points described above, then the mean is:

Rounding to the first place after the decimal point, we get:
M = 0.4
Then the correct option is option B.

x/3+17is less than or equal to 15
x/3is less than or equal to 15-17
xis less than or equal to -6
Answer:
1
Step-by-step explanation:
<u>Step 1: Convert words into an expression</u>
What does 1/3 of (7+8) + 4 to the power of 2 - 2 equal
(1/3(7 + 8) + 4)^(2-2)
(1/3(15) + 4)^0
(5 + 4)^0
(9)^0
1
Answer: 1