Cedro collects state quarters. he has 42 out of 50 available quarters. what is 42 out of 50 as a percent

To find liters from meters, multiply the meters by 1000. 1 meter equals 1000 liters. So, the answer would be 375000 from 3,750

Answer:

Choosing a 6 and then a prime number:2/21

Choosing two odd numbers: 2/7

Step-by-step explanation:

Choosing a 6 and then a prime number:

The probability of choosing 6 out of 1, 2, 3, 4, 5, 6 and 7 is one event divided by number of total events (which is equal to 7). That results in 1/7. Once 6 is chosen, the probability of choosing a prime number (prime number is a number that can only be divided by 1 and itself) out of 1, 2, 3, 4, 5 and 7 is 4/6 (prime numbers are 2, 3, 5, 7 in total there are 4 number and total number of events are 6). Finally, the probability of choosing a 6 and then a prime number is (1/7)*(4/6)=2/21.

Choosing two odd numbers:

The probability of choosing 1st odd number is 4/7 (number of odd numbers is 4 which includes 1, 3, 5, 7 and the number of total events is 7). Once 1st odd number is chosen, the probability of choosing 2nd odd number is 3/6 (number of odd numbers is 3 - because 1 odd number is already chosen and the number of total events is 6). Finally, the probability of choosing two odd numbers in a sequence is (4/7)*(3/6)=2/7.

Answer:

y = x² + x - 4

Step-by-step explanation:

Given roots x = a and x = b, then the factors are

(x - a) and (x - b)

The function is then the product of the factors

y = a(x - a)(x - b) ← where a is a multiplier

Given roots are x = - 4 and x = 2 then the factors are

(x - (- 4)) and (x - 2), that is (x + 4) and (x - 2), thus

y = a(x + 4)(x - 2)

To find a substitute (6, 20) into the function

20 = a(6 + 4)(6 - 2) = a(10)(4) = 40a ( divide both sides by 40 ), thus

a = =

y = (x + 4)(x - 2) ← expand factors

  = (x² + 2x - 8) ← distribute

y = x² + x - 4