Answer:
x=4, y =0
Step-by-step explanation:
To convert to rectangular from, we use the formulas
x= rcos theta
y = rsin theta
Substitute r=4 and theta =0
x = 4 cos (0) = 4 (1) = 4
y = 4 sin (0) = 4(0) = 0
In rectangular form (4,000°) equals ( 4, 0)
15 is equal to 15, 24 is greater than 15 and so is 32, so c, d, and e are correct
Step-by-step explanation:
m<6 + 63 = 180
m<6= 180-63
m<6= 117°
m<7 and m<3 are corresponding angles. They match
m<7= 63°
Answer:
Option C
Step-by-step explanation:
The chi square test of independence is used to determine if there is a significant association between two categorical variables from a population.
It tests the claim that the row and column variables are independent of each other.
The degrees of freedom for the chi-square are calculated using the following formula: df = (r-1) (c-1) where r is the number of rows and c is the number of columns.