How many different words of 3 letters can be formed from 4 different vowels and 7 different consonants so that each word contains two consonants and one vowel

84

Step-by-step explanation:

From 7 consonants, choose 2.  The number of combinations is ₇C₂.

From 4 vowels, choose 1.  The number of combinations is ₄C₁.

So the total number of combinations is:

₇C₂ × ₄C₁

21 × 4

84

your answer   is c

step-by-step explanation:

step-by-step explanation:

let's assume

number of candles set =x

price of of x candles =p(x)

we are given

a candle maker prices one set of scented candles at $10 and sells an average of 200 sets each week

so, we get point as (200,10)

he finds that when he reduces the price by $1, he then sells 50 more candle sets each week

so, we can find slope

now, we can use point slope form of line

now, we can plug values

we can use point

and find b

now, we can plug it back

and we get

now, we can find revenue

we know that

revenue = price*quantity

so, we get