Answer: y=-0.6x^3- 1
Step-by-step explanation:
In the graph, first we must see the points where the line intersects the axis.
We can see that it goes throug the point (0, -1)
Now, of the given options the only two that are 0 when x is -1, are:
f1(x) =y = 0.6*x^2 - 1
f2(x) =y = -0.6x^3 - 1
We also can see that for all the positive values of x, y has a negative value, so let's value bot functions in x = 2, and see what happens.
f1(2) = 0.6*4 - 1 = 1.4
f2(2) = -0.6*8 - 1 = -5.8
so the correct option is
y=-0.6x^3- 1
<u>Answer:</u>
P = 61.9°
<u>Step-by-step explanation:</u>
We are given a right angled triangle, ΔPQR, with known side lengths for all three sides and we are to find the measure of angle P.
For that, we can use sin, cos or tan.
P = 61.9°
English translation:
If the quality control manager wants to estimate the average life of lamps with 20 hours, with a confidence level of 95% and an error of 10% is assumed. What is the sample size?
The x value in the second equation (y+2) is substituted for the x in the first equation in...
Answer A.
