The answer is: Find the mean of the differences with the other numbers in the set<span>. Add the squared differences and then divide the total by the number of items in </span>data<span> in your </span>set; t<span>ake the square root of this mean of differences to </span>find<span> the standard </span>deviation.
I graphed the points.
It forms an imaginary right triangle where JK serves as the hypotenuse. We simply use the Pythagorean theorem to solve for the measure of the segment.
long leg: -3 to 4 = 7 units
short leg: -2 to 4 = 6 units
c² = a² + b²
c² = 7² + 6²
c² = 49 + 36
c² = 85
c = √85
c = 9.22 or 9
9/4 = 2.25
2.25 * 3 = 6.75
Among the given choices, (2.25,-0.5) is the closest point of L to the segment JK
Answer:
3 small pizzas costs 32 and 3 medium pizzas 114/9
Step-by-step explanation:
x = medium pizzas
y small pizzas
3x + 3y = 51
5y + 2x = 55
PART 1):
f(x) = 3x – 5 if x < -1
Start with a filled in circle on (-1, -8). Use the slope to go up 3 and right 1 to make another point and drawn the line only going down.
Answer: WRONG.
Because correct inequality is x≤-1 not x<-1. Hence we will put a close circle not an open circle. at (-1,-8).
Also since slope is positive so graph will go upward not downward.
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PART 2):
f(x) = -2x + 3 if -1 < x < 4
Put an open circle on (-1,5) and open circle on (4, -5). Connect those points.
Answer: Correct
Because correct inequality is < or > so both end points will be open circles.
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PART 3):
f(x) = 2 if x > 4
Put an open in circle on (4,2) then draw a horizontal line to the right.
Answer: WRONG.
Because correct inequality is x≥4 not x>4. Hence we will put a close circle not an open circle. at (4,2).