Plug in 2 for your x, you'll get 2(2^2)+3, which becomes 2(4)+3, 8+3, 11.
Answer:
The new mean is 77cm
Step-by-step explanation:
If the mean height of the 30 children in a room is 76 cm, then the sum of their ages is

If James with height 107cm joins them, then the total number of children now becomes 30+1=31 and the total height becomes: 2280cm+107cm=2387cm
The new mean now becomes:

Answer:
Your answer 3.141416141
Step-by-step explanation:
Tell me if im wrong
Answer: x=-10
Step-by-step explanation:
5*(12+x)=10
Distribute
60+5x=10
Subtract(60)
5x=-50
x=-10
<em>Hope it helps <3</em>
The correct answer is right.
An acute one would have all three acute, while an obtuse one would have at least one obtuse angle.