First add all the numbers in the data:
15.8 + 14.9 + 16.7 + 17.6 + 13.4 = 78.4
Divide by how many numbers are in the data set there is 5 so:
78.4 ÷ 5 = 15.7
The mean is 15.7
Answer:
(-3.5, -0.5)
Step-by-step explanation:
<span><span>The derivative is:
y= 4<span>(<span><span>x</span></span></span></span></span>³<span><span><span><span>−<span>x</span></span></span></span></span>²<span><span><span><span>+x+1</span>)</span><span>e</span></span></span>×<span><span><span>/</span></span><span><span>(<span><span>x</span></span></span></span></span>²<span><span><span><span>+1</span>)</span></span></span>²
Answer:
2(x-3/4)^2 - 49/8 = 0
Step-by-step explanation:
2x^2 - 3x - 5 = 0
First take out the 2: 2 [x^2 -3/2x - 5/2] = 0
Now complete the square inside the square brackets: 2 [(x-3/4)^2 - 9/16 - 5/2] = 0
Simplify inside the square brackets: 2 [(x-3/4)^2 - 49/16] = 0
Now times out the square brackets: 2(x-3/4)^2 - 49/8 = 0
And we're done!
