Answer:
480
Step-by-step explanation:
The probability she will roll 2 odd numbers is 12/50 (the number of odd rolls over the total). This simplifies to 6/25
Multiply the probability times the total number of rolls to get a good estimate of the number of rolls that till be odd odd
6/25 * 2000 =480
(-7,1) is a solution to the inequality y<0.5x+9
Answer:
3) Midpoint is (-4,0.5)
Option A is correct.
4) Midpoint is (2.5,0)
Option B is correct.
5) The factors are (x+4)(x-7)
Option C is correct.
6) The factors are (x+4)(x+2)
Option A is correct.
Step-by-step explanation:
Question 3
Find midpoint of the following:
(2,-7), (-10,8)
The formula used to find midpoint is: 
We have 
Putting values and finding midpoint

So, Midpoint is (-4,0.5)
Option A is correct.
Question 4
Find midpoint of the following:
(2,-10), (3,10)
The formula used to find midpoint is: 
We have 
Putting values and finding midpoint

So, Midpoint is (2.5,0)
Option B is correct.
Question 5
Factor each completely

We will break the middle term and find factors

So, the factors are (x+4)(x-7)
Option C is correct.
Question 6
Factor each completely

We will break the middle term and find factors

So, the factors are (x+4)(x+2)
Option A is correct.
A
100+89.50×36
=3,322
b
3,322−2,900
=422
c
2,900÷89.50
=33