Sam says the product 2.7 x 0.74 x 1.1 has 3 decimal places. Rocco says says it has 4 decimal places. Will says the product has 5 decimal places. Who is correct

Rocco is correct

Step-by-step explanation:

In this question, we are investigating the validity of the claims made by three different people as regards the. answer obtained from multiplying three numbers together.

Firstly, let’s do the multiplication

2.7 * 0.74 * 1.1 = 2.1978

Now, how many numbers can be see after the decimal? we can clearly see 4 numbers

This means that the number is to 4 decimal place. Rocco is correct

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

dc=6 square root of 3 and ac is 12 square root 3

c and d

step-by-step explanation:

square root of 3/2 = 18/c

cross multiply to get 18*2=√3*c

36/√3 * √3/√3 = c

c= 36*√3/3

c=12√3