Answer:
x ≅ 7
Step-by-step explanation:
cos(67°) = x/18
x = 18cos(67°) ≅ 7
The correct answer is real numbers
Answer:
Initial Value / Starting Point
Step-by-step explanation:
Slope-intercept form of a linear equation is y=mx+b where m is the slope and b is the y-intercept, or the initial value.
Step-by-step explanation:
3x-4y=13
y=-3x-7
3x-4(-3x-7)=13
3x+12x+28=13
15x=-15
x= -1
y= -3x-7 = 3-7= -4
( -1, -4)
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:
![M = \frac{x_1 + x_2 + ... + x_n}{N}](https://tex.z-dn.net/?f=M%20%3D%20%5Cfrac%7Bx_1%20%2B%20x_2%20%2B%20...%20%2B%20x_n%7D%7BN%7D)
In this case we have the set of 20 points described above, then the mean is:
![M = \frac{3*0.1 + 1*0.2 + 4*0.3 + 6*0.4 + 3*0.5 + 3*0.6}{20} = 0.37](https://tex.z-dn.net/?f=M%20%3D%20%5Cfrac%7B3%2A0.1%20%2B%201%2A0.2%20%2B%204%2A0.3%20%2B%206%2A0.4%20%2B%203%2A0.5%20%2B%203%2A0.6%7D%7B20%7D%20%3D%200.37)
Rounding to the first place after the decimal point, we get:
M = 0.4
Then the correct option is option B.