Answer:
5
Step-by-step explanation:
To find out how many times a 2 should be rolled in 30 tosses, take the probability times the number of tosses
Number of two's = 30 * 1/6
=5
We should get 5
12 out of 40 to a percentage:-
(12/40)×100
= 30%
<h2>
Hope it helps..</h2>
Answer:
<u>X=7,-3</u>
Step-by-step explanation:
x^(2)-4x-21=0
(x-7)(x+3)=0
x=7,x=-3
I say the answer is d I might be wrong.