For the first one number 1,2 and 3 are prime cause it can only be times 1, and 4 is a composite because it is not prime it can be times not only by 1 but by 2 two do you understand it more now or do you need help still
Answer:
her brother is 15 years old
Step-by-step explanation:
let 'b' = her brother's age
Harriet is 3 years old but Harriet is also '1/3b - 2'
3 = 1/3b - 2
5 = 1/3b
b = 5(3) or 15
Answer:
45.6
Step-by-step explanation:
IF x is theta
arccos(7/10)
*make sure your calculator is in degree mode
x= 45.57
Is this what you need 4x/ [5-(2x/3)] ?
If yes, then 4x/[(15-2x)/3] = 4x•3/(15-2x) = 12x/(-2x+15)