I don’t know how to do this problem cylinder b part that you see in the photo

58.875

Step-by-step explanation:

the formula for finding the volume of a cylinder is as stated:

V=πr²h

in the problem in gives you diameter not the radius. 5 divided by 2 is 2.5. so you would write into your calculator- 3.14 × 2.5² × 3, giving you 58.875.

hope this helped :)

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

quit

step-by-step explanation: