As you can see in the picture, this is 6-8-10 right triangle.
One of angles is 90° so you can find others

8/6 = 4/3
6/8= 3/4
tan-1(4/3) = 36.9 °
tan-1(3/4) = 53.1 °
tan<R= 53.1 °
Hope this helps ^-^
The answer would be
-1/2
or in decimal form
-0.5
hope this helps :)
Answer:
-19.8
Step-by-step explanation:
-3 x 6 = -18
-0.3 x 6 = -1.8
add together: -18 + -1.8 = -19.8
Question:
The quantities x and y are proportional.

Find the constant of proportionality (r)
Answer:

Step-by-step explanation:
Given

Required
Determine the constant of proportionality (r)
Constant of proportionality (r) is calculated as

When

Substitute these values in the given formula

Convert both fractions to improper fractions

Multiply both sides by 


Reorder


Divide the numerator and denominator by 3


Convert to mixed fraction

<em>Hence, the constant of proportionality is </em>
<em></em>
Answer:

Step-by-step explanation:
we are given
the sum,common difference and nth term of a geometric sequence
we want to figure out the first term
recall geometric sequence

we are given that
thus substitute:

to figure out
we need to figure out the equation
simplify denominator:

simplify square:

simplify substraction:

simplify complex fraction:

calculate reciprocal:

reduce fraction:

multiply both sides by 4/7:

reduce fraction:

simplify multiplication:

hence,
