Answer:
$17.14
Step-by-step explanation:
Given :
To Find : Using the quadratic regression equation, what was the predicted profit in year 8
Solution :
Where y is profit and x is year
Substitute x = 8
So, Option D is true
Hence the predicted profit in year 8 is $17.14
Answer:
x=2
Step-by-step explanation:
3(x+20/3=12/3
x+2=4
x+2-2=4-2
x=2
Answer:
The answer is 20
Step-by-step explanation:
10/8 =20/10
This is direct proportion - it takes less time to run 15 miles than 50 miles. Show the comparison:
<span><span>5060</span>=<span>15x</span></span>
<span>50x=60×15</span>
<span>x=<span><span>60×15</span>50</span></span>
<span>x=18</span>minutes
For all the non-negative numbers, the absolute value is always equal to the actual number.
If "x" is any non-negative number, then:
|x| = x
For all negative numbers, the absolute value is equal to -1 multiplied to that number.
If x is any negative number, then:
|x| = -x
So, if after subtracting 2 the number is not anymore equal to it absolute value, this means when 2 is subtracted the number changes from positive to negative.
Only one such number exists that changes from positive to negative on subtraction of 2 and that number if 1.
Absolute value of 1 is 1.
When 2 is subtracted from 1, the result is -1. The absolute value of -1 is also 1. So the absolute value is no longer equal to the original value.
The possible number that satisfies the given condition is 1.