The manufacturer of a soft-drink brand is considering making changes to its formula and is conducting a taste test to see if the original or the new formula is preferred. The names of 100 potential customers are numbered from 00–99, and a table of random digits is used to select 50 subjects. The subjects are served both formulas of soft drink and asked to choose which they prefer. Which of the following represents how this experiment could be made blind?

A) Serve the original formula in its current can and the new formula in a special cup.
B) Test administrators use identical cups, and mark the “A” or “B” on the bottom of each cup to identify the formula.
C) Serve in identical cups, one labeled “original” and the other labeled “new.”
D) Blindfold the participants and tell them which formula they are tasting.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

hope to and hope that my answer is brainliest.(follow me )

y = 2x

step-by-step explanation:

if you divide each number in the sequence, you'll see that they all have a multiple factor of 2. each number in the series, and any other numbers which may continue, will be multiplied by 2. therefore, y is the next number in the sequence, and x is the current one, so, our formula will be y = 2x.