Calcula de esta distribución de frecuencia el rango semiintercuartilico No. DE CLASES

INTERVALOS DE CLASE

FREC.

1

14.2-15.1

1

2

15.2-16.1

3

3

16.2-17.1

7

4

17.2-18.1

5

5

18.2-19.1

2

6

19.2-20.1

1

Seleccione una:
a. 17.8
b. 14.25
c. 16.26
d. 0.77

On a coordinate grid, point p is at (4, 3) and point r is at (−2, −5). points q and s are a reflection of both points across the x-axis. what are the coordinates of q and s? q(−4, 3), s(2, −5) q(4, −3), s(−2, 5) q(−4, −3), s(2, 5) q(−4, 3), s(−2, 5) ; -; i can't figure it out, if someone can me with the answer, that would be nice

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

26) -2(7x) = (-2 • 7) x a. associative property of addition b. associative property of multiplication c. commutative property of multiplication d. commutative property of addition