Answer:
Step-by-step explanation:
The <u>total area</u> of the circle is given by:
where 
is a constant 
and 
is the radius: 
Thus the total area of this circle is:
We want only the area of the arc that measures 50°. For this we must remember that the arc of the total circle is 360°.
Thus, we want 50° out of the 360° degrees in the circle. For this, we divide the total area by 360 and then we multiply by 50:
the area of the sector to the nearest tenth is
This will help a lot if you know how to do proportions... hope I helped
Answer: 2 5/7
Step-by-step explanation:
5(x-4) + 3x - 9x = 6 - (2x +5) + 8x
5x - 20 + 3x - 9x = 6 - 2x - 5 + 8x
-x - 20 = 6x - 1
-20 = 7x - 1
-19 = 7x
X = 2 and 5/7
(-3, -7), (0, -6), (3, -5), (6, -4), (9, -3)
you just put the number instead of x and solve.
hope this helped!
Answer:
-1212 feet/min * 412 min = -499314 feet
Step-by-step explanation:
if you have a speed, or in this case velocity since the measurement has a definite direction, and time you can multiply them together to get the distance. Some easy examples, 10 feet per second for 1 second is 10 feet, hopefully that logically makes sense as well. i you are going 10 feet in 1 second, then after 1 second you went 10 feet. after 2 seconds it's 20 seconds and so on
Here we have -1212 feet per minute for 412 minutes. just to establish things, 1 minute would be -1212 feet, here the negative means below the surface, sometimes measurements will have that. Anyway, 2 minutes would get -2424, and so on. So it should make sense to multiply them.
-1212 * 412 = -499314
With units, you also have to pay attention to what might cancel out. You treat different units like variables. so -1212feet per minute looks like -1212 feet/min where feet and min are basically variables. Similarly 412 minutes is 412 min. So if you picture multiplying these, you get -1212 feet/min * 412 min. In this scenario the mins cancel each other out, since everything s being multiplied. so like if you had x/y * y you would just get x, or 2/3 * 3 gets just 2. So this is another way to know what to multiply by.
feet/min has min in the denominator and we want feet, so we need to multiply by something that just has min as its units. Anyway, that let's you know it's -499314 feet
