A. one way to integrate ∫x√x+1 dx is to use integration by parts. do so to find the antiderivative.
b. another way to evaluate the integral in part a is by using the substitution u=x+1. do so to find the antiderivative.
c. compare the results from the two methods. if they do not look the same, explain how this can happen. discuss the advantages and disadvantages of each method.

By parts:

By substitution:

As you can see, no difference (as long as you simplify everything in a consistent way).

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3