Answer:
x^2 + 6x + 9 = 16
(x + 3)^2 = 16
x + 3 = +-4 ---> x = -7 or x = 1
Answer:
2. 5(b+3)
3. 5b + 15
4. 15 + 5b
Step-by-step explanation:
area of rectangle = length * breadth
length= b+3
breadth = 5
Answer:
0.2207
Step-by-step explanation:
Here, we want to find the probability that the sample mean is greater than 25.
What we use here is the z-scores statistic
Mathematically;
z-score = (x-mean)/SD/√n
From the question;
x = 65, mean = 63, SD = 13 and n = 25
Plugging these values in the z-score equation, we have
Z-score = (65-63)/13/√25 = 2/13/5 = 0.77
So the probability we want to calculate is ;
P(z > 0.77)
This can be obtained from the standard normal distribution table
Thus;
P(z > 0.77) = 0.22065 which is 0.2207 to 4 d.p
your answer is C. plug in -1 for x and Y. 4(-1) + (-1). now add... -5. -5 is greater than -6 which is a ordered pair we needed to make this true
Answer:
Below
Step-by-step explanation:
All you need to do to find angle x is to subtract 48 from 90 :)
So, 90 - 48 = 42
Angle x = 42 degrees
Hope this helps!
