Answer:
a
Step-by-step explanation:
to find a proportion they must equal each other
8/4 in its simplest form is just 2
to make r/3 = 2 r must be 6
6/3 is 2
Answer:
sin(α+β)/sin(α-β) ==(tan α+tan β)/(tan α-tan β )
Step-by-step explanation:
We have to complete
sin(α+β)/sin(α-β) = ?
The identities that will be used:
sin(α+β)=sin α cos β+cos α sin β
and
sin(α-β)=sin α cos β-cos α sin β
Now:
= sin(α+β)/sin(α-β)
=(sin α cos β+cos α sin β)/(sin α cos β-cos α sin β)
In order to bring the equation in compact form we wil divide both numerator and denominator with cos α cos β
= (((sin α cos β+cos α sin β))/(cos α cos β ))/(((sin α cos β-cos α sin β))/(cos α cos β))
=((sin α cosβ)/(cos α cos β )+(cos α sin β)/(cos α cos β ))/((sin α cos β)/(cos α cos β )-(cos α sin β)/(cos α cos β))
=(sin α/cos α + sin β/cos β )/(sin α/cos β - sin β/cos β)
=(tan α+tan β)/(tan α-tan β )
So,
sin(α+β)/sin(α-β) ==(tan α+tan β)/(tan α-tan β)
Whats the opposite of square root? Square (exponent)
So do 1.1 squared.
1.21 is the answer.
jheez eighth grade is easy
Answer:
C. f(x)=-2x^3-2x^2+12x
Step-by-step explanation:
The equation for slope is <u>y² - y
</u> x² - x
So it would be: <u>8 - (-20)</u> or <u>8 + 20
</u> 5 - 3 5 - 3
<u>28</u>
2
Then, you have to reduce it, divide both by two.
<u>14</u>
1
Since it is over 1, then it is just the numerator.
Your final is:
<em>Slope = 14</em>
