Answer:
x= -2 and 9
Step-by-step explanation:

factorize it
- 18 = 2×3×3
TO MAKE IT 7
3×3=9
9-2 =7

x(x+9)-2(x+9)=0
x-2=0 ,x+9=0
x =2 x=-9
Answer:
If the circle shown (which I can't see) has a radius of 2, then it's equation 3, if the radius is 4, then it's equation 4.
Step-by-step explanation:
The equation for a circle is 
Where (h, k) is the center and r is the radius.
Answer:
ill try working on it
Step-by-step explanation:
Answer:
P = 0.9893
Step-by-step explanation:
The mean weight of the babies born is 4088 and a variance of 55696
This is a sampling question with sample size, n = 128
To find the probability that the mean weight 4088 is greater than 4132
Therefore, probability is given as
P = 4088/4132
P = 0.9893