Answer:
They both sold 20
Step-by-step explanation
5+3 equals 8
Than I divided 8 by 160, got 20
then divide the 8 back to 5 and 3
5 x 20 is 100
3 x 20 is 60
100+60=160
The gradient of the tangent to the curve y = 5x³ + 3x² - x + 4 is 15x²+6x-1.
<h3>What is the gradient?</h3>
A differential operator is used for a function having a vector value in three dimensions to produce a vector whose three components are the partial derivatives of the function with respect to its three variables.
The given equation for the curve is;
y = 5x³ + 3x² - x + 4
The gradient of the tangent to the curve is;

Hence,the gradient of the tangent to the curve y = 5x³ + 3x² - x + 4 is 15x²+6x-1.
To learn more about the gradient refer to;
brainly.com/question/13020257
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Answer:
The null hypothesis is not rejected and hence Type II error occurred
Step-by-step explanation:
Here
The null hypothesis is as follows
H0 = Mean = 0.5
The alternate hypothesis is as follows -
H1 = Mean >0.5
For Type I error = The Null hypothesis is rejected if null hypothesis is actually true
Type II error =The Null hypothesis is not rejected when the null hypothesis is not true but is false.
Here, the null hypothesis is not rejected and hence Type II error occurred