Answer:
$18
Step-by-step explanation:
Given:
y = 0.9x - 4.5
Where,
x = age in years
y = hourly pay in dollars
what is the best prediction for the hourly pay of a 25 year old?
That is, find y when x=25
y = 0.9x - 4.5
= 0.9(25) - 4.5
= 22.5 - 4.5
= 18
y = $18
The prediction for the hourly pay of a 25 year old is $18
Answer:
gives
Step-by-step explanation:
Given
Required
Show that the y values increases by 4 for
We have:
For
Substitute
For
Substitute
So, we have:
Subtract from
Collect like terms
Hence:
gives
i.e. an increment of 4
Approximately 16 or more precisely 15.5.
Answer:
x y
8 4
14 7
6 3
Step-by-step explanation:
Step 1: Substitute x value into equation for y
y = 8/2
y = 4
y = 14/2
y = 7
Step 2: Substitute y value into equation for x
3 = x/2
6 = x
Therefore the ordered pairs are (8,4) (14,7) (6,3)
Answer:
2√3
Step-by-step explanation:
Given the following information,
Long = 3 = Adjacent
Angle of elevation =30 degrees
Required
Hypotenuse
Using SOH CAH TOA identity
Cos theta = adj/hyp
Cos 30 = 3/hyp
hyp = 3/cos30
hyp = 3/√3/2
hyp = 3* 2/√3
hyp = 6/√3
hyp = 6/√3 * √3/√3
hyp = 6√3/3
hyp = 2√3
Hence the hypotenuse is 2√3