Answer:
40.2
Step-by-step explanation:
Diameter = 16, Radius = 16/2 = 8
Central angle = 2π/5 radians = 72°
Sector area,
8²π×(72/360)
= 64π/5
= 40.2 (rounded to the nearest tenth)
Answered by GAUTHMATH
If 870mg is 30% of recommended daily amount, then we can set up the equation:
870 = 0.30 * x (where x is the recommended amount)
870 / 0.3 = x
x = 2900mg
Therefore the recommended daily amount is 2900mg of salt
Hard
You put your right foot in
You take your right foot out
You put your right foot in
And you shake it all about
You do the hokey pokey
And you turn yourself around
That's what it's all about
You put your left foot in
You take your left foot out
You put your left foot in
And you shake it all about
You do the hokey pokey
And you turn yourself around
That's what it's all about
Answer:
true
Step-by-step explanation:
given
= ( cross- multiply )
4x = 40 ( divide both sides by 4)
x = 10
Answer:
(5,-6)
Step-by-step explanation:
ONE WAY:
If , then .
Let's simplify that.
Distribute with :
Combine the end like terms :
Use identity for :
Combine like terms and :
We are given .
So we have that .
The vertex happens at .
Compare to to determine .
Let's plug it in.
So the coordinate is 5.
Let's find the corresponding coordinate by evaluating our expression named at :
So the ordered pair of the vertex is (5,-6).
ANOTHER WAY:
The vertex form of a quadratic is where the vertex is .
Let's put into this form.
We are given .
We will need to complete the square.
I like to use the identity .
So If you add something in, you will have to take it out (and vice versa).
So we have in vertex form is:
.
The vertex is (3,-6).
So if we are dealing with the function .
This means we are going to move the vertex of right 2 units to figure out the vertex of which puts us at (3+2,-6)=(5,-6).
The coordinate was not effected here because we were only moving horizontally not up/down.