Answer:
Step-by-step explanation:
To simplify this expression you must use the following trigonometric identities
I
II
Remember that
Only if for all x
If f(x) is not greater than 0 for all x then
Now we have the expression:
then using the trigonometric identities I and II we have to:
is not greater or equal than 0 for all x. So.
Finally
Note: (2/3) yard= (2/3)(3 ft) = 2 feet
Ans: 2/6 = 1/3 foot
Each piece is 1/3 foot long
Count the shaded squares and say there are 44 shaded that would be 44/100 or 11/25 as simplified and 0.44
Y=MX+B
Y= 2X+50
And we don’t know how long they are getting towed but when we find that out we plug it into X
Let the numbers be x and y
According to the data : xy=-15 and x+y=-7
xy=-15
x+y=-7
y=-7-x
x(-x-7)=-15
y=-7-x
-x^2-7x=-15
y=-7-x
x^2+7x-15=0
y=-7-x
x=(-7±sqrt(7*7+4*15))/2
y=-7-x
x=(-7±sqrt(109<span>))/2
</span>
Goes to two systems.
1)
y=-7-x
x=(-7+sqrt(109<span>))/2
</span>
y=-7+3.5-sqrt(109<span>))/2
</span>x=(-7+sqrt(109<span>))/2
</span>
y=-3.5-sqrt(109<span>))/2
</span>x=(-7+sqrt(109<span>))/2
</span>
2)
y=-7-x
x=(-7-sqrt(109<span>))/2
</span>
y=-7+3.5+sqrt(109))/2
x=(-7-sqrt(109))/2
y=-3.5+sqrt(109))/2
x=(-7-sqrt(109<span>))/2</span>