Answer:
A) 150
B)30
Step-by-step explanation:
Answer:
The force on the book is 250N.
Step-by-step explanation:
Newton's second law states that the equation for the force is:

In which m is the mass, in kilograms, and a is the acceleration, in m/s². F is the force measured in N.
In this question:

So

The force on the book is 250N.
1) 0,4
2) 0,3/5
3) -6,6
4) -9/4, 9/4
5) -6+3√7, -6-3√7
6) 11,7
7) 6,-5
8) 5, -12
9) 10
10) -1/5,-2
11) -5/4, 3/2
12) -1/4, 8/3
13) -5, -6
14) -9, 1
15) 3,2
16) 8
17) 6,-4
18) 0,4
19) 7,5 (factored) 6,-1 (vertex)
The vertex form let’s you find the vertex. The factored form gives you the roots.
If I missed anything please tell me
4/7 is 28/49 in simplest form.<span />