Given: ABCD ∥gram,
BK ⊥ AD , AB ⊥ BD
AB=6, AK=3
Find: m∠A, BK
To proof
as given BK ⊥ AD
thus ΔABK is a right triangle.
thus by using the pythagoras theorem
we have
AB² = BK² + AK²
BK² = AB ²- AK²
= 6² - 3²
= 36 - 9
= 27
Hence
BK = <u>
unit</u>
Now find the value m∠A
by using the trignometric function
FORMULA
cosA = 
cosA = 
= 
m∠A = 60°
hence proved
Answer:
5mL
Step-by-step explanation:
Volume is mass
Answer:
The answer is A
Step-by-step explanation:
In order for it to be a function every x value has to have a different y value or every input has to have a different output.
The answer is ....................
X=5
Y=3
Answer
Find out the how much did the height of the tree sapling increases.
To proof
Let us assume that the height of the tree sapling increases be x.
As given
The high every tree sapling was 3.15 inches last year
this year the high is 5.38 inches.
than the equation is become in the form
x = 5.38 - 3.15
x = 2.23 inches
Therefore the height of the tree sapling increases be 2.23 inches.
Hence proved
