if the order mattered it would be 7*6*5 *4*3 = 2520 arrangements
if order didn't matter
7*6*5*4*3*2 divided by (5*4*3*2*2) = 21
7th grade has 3 boy out of 10 students
probability of picking a boy is 3/10
8th grade has 9 boys out of 12 students are boys
probability of picking a boy is 9/12 reduced to 3/4
3/10 x 3/4 = 9/40 probability of picking 2 boys
Answer:
False
Step-by-step explanation:
a - (-b) would make it a + b
negative and negative equals positive
positive and positive equals positive
negative and positive equals negative
positive and negative equals negative
a) nearest integer = -7
Step-by-step explanation:
hope it helps you
Answer:
No, If there equivalent they don't have to be equal. And if they are equal then don't have to be equivalent
Step-by-step explanation:
Hopes this helps.
