Answer: x = -5
Step-by-step explanation:
-3.4x - 9 = 8
+9 +9
-3.4x = 17
-3.4x ÷ -3.4 = x
17 ÷ -3.4 = <u><em>-5</em></u>
Answer:
Step-by-step explanation:
The answer is always. Family.
Answer:
Part 1)
Part 2)
Part 3)
Step-by-step explanation:
<em>Table 1</em>
step 1
Find the slope
take two points from the data in the table
(0,3) and (3,15)
The formula to calculate the slope between two points is equal to
substitute
step 2
Find the linear function in slope intercept form
we have
substitute
<em>Table 2</em>
step 1
Find the slope
take two points from the data in the table
(2,5) and (5,11)
The formula to calculate the slope between two points is equal to
substitute
step 2
Find the linear function in slope intercept form
we have
Solve for b
substitute
therefore
<em>Table 3</em>
step 1
Find the slope
take two points from the data in the table
(5,1) and (8,4)
The formula to calculate the slope between two points is equal to
substitute
step 2
Find the linear function in slope intercept form
we have
Solve for b
substitute
therefore
Answer:
1 / √17
Step-by-step explanation:
to solve cos(tan^-1(4))
we break it into simpler terms
tan^-1(4) ------ these will be taken as an angle when dealing with cos
tan Ф = opposite / adjacent = 4 / 1 = 4
Using Pythagoras Theorem
Hypothenus ² = opposite² + adjacent ²
h² = 4² + 1²
h² = 16 + 1
h² = 17
a = √17
cos Ф = adjacent / hypothenus = 1 / √17
cos(tan^-1(4)) = 1 / √17