Supplementary angles add up to 180
⇒ ∠x + ∠y = 180
∠x + ∠y = 180
∠x + 142 = 180
∠x = 180 - 142 = 38°
Answer: x = 38°
Answer:
H0 : p = 0.5
H1 : p ≠ 0.5
Two tailed test
Step-by-step explanation:
The test if the true proportion of heads is different from 50%; this means the initial truth, that is the true proportion is 50% ; which is the null ;
H0 : p = 0.5
The researcher intends to test if the true proportion is not 50% ; that is the researcher is n spwcudfic about if the proportion is lower or higher, he just wants to test that the proportion is different, hence the test could go either way ;
Alternative hypothesis ;
H1 : p ≠ 0.5
Since the sign in the alternative hypothesis could be in either direction, then we have a two tailed test
B change every thing into a fraction and change the denominator do the same to the numerator and see which is less to greater
7.41= 7 41/100
7 4/5= 7 80/100
7.6= 7 60/100
Answer:
number 10 (5/6)
Step-by-step explanation:
hope this helped ^^
Answer:
D) {-1}
Step-by-step explanation:
A rational expression is "not defined" when its denominator is zero. Hence to find values of x that make the expression "not defined," you solve the equation ...
denominator = 0
2x +2 = 0 . . . . . . put the actual denominator into the equation
x + 1 = 0 . . . . . divide by 2
x = -1 . . . . . . . . subtract 1
The expression is "not defined" for x in the set {-1}.
