Step-by-step explanation:
Given :
1- cosA = 1/2
or, CosA = 1 -1/2
Therefore ; CosA = 1/2 = b/h
According to the Pythagoras theorem,
P = root under h^2 - b^2
= root under (2)^2 - (1)^2
= root under 4 -1
= root 3
Again,
SinA = P/h
= root 3 / 2
There are 150 9th graders and 300 10th graders
a) Choose Z since the σ is smallest . The smaller the σ the higher the consistency. Also we can see that the fewest day the student attendance is higher than other while the highest day is the same with others. (L = 130 ,H = 180)
b) Choose W since mean in W is the highest.
-
Answer:
g) , h)
Step-by-step explanation:
We proceed to solve each equation by algebraic means:
g)
1) Given
2) Definition of division
3)
4) Associative property
5) /Result
h)
1) Given
2) Definition of division
3)
4) Factorization/Distributive property
5) Modulative and commutative properties/Associative property
6) //Definition of division/Result
Answer:
4cm
Step-by-step explanation:
28 + 28 = 56
64 - 56 = 8
8/2=4
just to check : 4 + 4 + 28 + 28 = 64
hope this helps x
brainliest plx?