Answer:
The numbers are either ±13.35 and ±1.35 or ±1.35 and ±13.3
Step-by-step explanation:
Let the two numbers be 'x' and 'y'.
Given:
The squares of the sum of two numbers = 144
The sum of their squares = 180
The sum of the numbers = 
The square of the sum of numbers = 
Square of first number = 
Square of second number = 
The sum of their squares = 
Now, as per question:
Expanding equation (1) using the formula 
This gives,
Plug in the value of 'y' from equation (3) in equation (1). This gives,
Therefore,
Therefore, the numbers are either ±13.35 and ±1.35 or ±1.35 and ±13.3
Answer:
divide by 1k
Step-by-step explanation:
Answer:
okay I'll try to answer it
Answer: (-2,1)
Step-by-step explanation:
The point (1,2) is in quadrant 1.
When rotated 90 degrees counter clockwise, it moves to quadrant 2.
The new point becomes (-2,1)
9514 1404 393
Answer:
A. 0 ≤ n ≤ 7
B. the height after 0 days (the initial height in cm)
Step-by-step explanation:
<h3>A.</h3>
The plant cannot be expected to continue its exponential growth curve, so a reasonable domain is the domain of the observations already made. The plant reached its height of about 11.26 cm after about 7 days. The reasonable domain for the growth function is ...
0 ≤ n ≤ 7
__
<h3>B.</h3>
The y-intercept corresponds to the n=0 value, the height of the plant at the start of the study.
_____
<em>Additional comment</em>
The value of n that gives f(n) = 11.26 can be found using logarithms.
11.26 = 8(1.05^n)
log(11.26/8) = n·log(1.05) . . . . . . divide by 8, take logs
n = log(11.26/8)/log(1.05) ≈ 7.00582
