Answer:
put the ^ when you do exponents!
Step-by-step explanation:
There are three parts to graphing an inequality.
1. determine if the line will be dashed or solid
2. determine where you will shade in
3 graph with the appropriate line and shade
1. it is just > and not ≥ so the line will be dashed, which means the line itself is not part of the answer.
2. it is y> so you shade in the area inside the parabola. if y was an actal number it might be more complicated
3. graph x^2 - 6x + 11. If that seems a bit hard, put it into vertex form by completing the square.
y = x^2 - 6x + 11
y = (x - 3)^2 +2
Since x^2 is positive it opens upward and then plug in 0 for x and y in y = (x - 3)^2 +2 to get the x and y intercepts and the -3 and +2 tells you the vertex (in this case the minimum) is at (3,2), then remember the points are mirrored on either side of the vertex. so if the y intercept is 2 to the left and one higher than the vertex, there will also be a point 2 to the RIGHT and 1 up. then just connect the dots. Keep in mind there may not be any x intercepts if it never goes below the x axis *hinthintwinkwink*
if all else fails just graph a handful of points to get the idea of the shape. Just remember you are shading inside of the parabola and using dashed lines.
Answer:
The probability that the mean lead level from the sample of 49 measurements T is less than 15 ppb
P(x⁻< 15) = 0.1587
Step-by-step explanation:
<u><em>Step(i):-</em></u>
Given that the size of the sample 'n' =49
Mean of the Population = 17ppb
The standard deviation of the population = 14ppb
Let 'X' be the random variable in a normal distribution
![Z = \frac{x-mean}{\frac{S.D}{\sqrt{n} } } = \frac{15-17}{\frac{14}{\sqrt{49} } } = -1](https://tex.z-dn.net/?f=Z%20%3D%20%5Cfrac%7Bx-mean%7D%7B%5Cfrac%7BS.D%7D%7B%5Csqrt%7Bn%7D%20%7D%20%7D%20%3D%20%5Cfrac%7B15-17%7D%7B%5Cfrac%7B14%7D%7B%5Csqrt%7B49%7D%20%7D%20%7D%20%3D%20-1)
<u><em>Step(ii):</em></u>-
The probability that the mean lead level from the sample of 49 measurements T is less than 15 ppb
P(x⁻< 15) = P(Z<-1) = 1-P(Z>-1)
= 1-(0.5+A(-1))
= 0.5 - A(1)
= 0.5-0.3413
= 0.1587
<u><em>Final answer:-</em></u>
The probability that the mean lead level from the sample of 49 measurements T is less than 15 ppb
P(x⁻< 15) = 0.1587
The domain is represented by the intervals:
(-∞, 0] and (6, ∞)
I hope this helps
Answer:
156-26=136
Step-by-step explanation:
If these are the answer choices then it equals itself.
Hello :
gcf :<span>The "Greatest Common Factor" is the largest of the common factors (of two or more numbers)</span>
<span> 190 and 210 :
</span>190= 2×5×19
210 = 2×5×7×3
gcf(190,210) = 5