Answer:
y=(-2/3)x-9
Step-by-step explanation:
1) first put the equation in terms of y. You should get y=-(2/3)x-8.
2) parallel lines have the same slope so the slope for this line and the answer should be the same
3) using the form y=mx+b plug (-2/3) in as the slope or m
4) plug the point in to get your b value. you should have -7 =((-2/3)•(-3))+b
5) isolate the variable b and plug in your answer to the equation.
Answer:
Step-by-step explanation:
y∞x
then
y=kx (with k as constant)
y=5 when x=8
⇒Putting this in the first equation
⇒5=k×8
⇒k=5/8
Now
y=? when x=64
Putting x=64 in the first equation
y=kx
⇒y=(5/8)×64
We get
y=40
Hope u understand
Note that both 5 and 4 are exponents, and their product is 5*4=20, or 4*5=20. Thus,
(3^5)^4 is equal to (3^4)^5
Review:
(a to the power b)to the power c = a to the power bc.
Thus, (3 to the power 5)^4 = 3^20; the same is true if you reverse the positions of the 5 and the 4.
Let a =107° and b=42°;
So cos 107° cos 42° + sin 107° sin 42° = cosa.cos42 + sina.sinb = cos(a-b)
and cos 107° cos 42° + sin 107° sin 42° = cos(107-42) = cos(65°)
