<span>Vertical angles must be C and D
A.be complementary. They are not always complementary, to be complementary means having a sum of 90 deg
B.be acute. - Vertical angles can be NOT acute depending on how they are positioned and intersected with the lines.
Answer
C.have the same vertex.
D.be congruent.</span>
Answer:
A rectangle is a parallelogram with d. four congruent angles
Step-by-step explanation:
A rectangle has four right angles meaning they are congruent.
Answer:
Step-by-step explanation:
Given
Required
Shift down and right
<u>Shift 3 units down</u>
The rule is: (x,y)=> (x,y-a)
Where a is the number of units shifted down
In this case:
So, we have:
== >
<u>Shift 2 units right</u>
The rule is: (x,y)=>(x-b,y)
Where b is the number of units shifted right
In this case:
So, we have:
==>
Open bracket:
Hence, the new equation after the transformation is:
Answer:
y = In | cos(2x + c ) | + c
Step-by-step explanation:
y" + (y')^2 + 4 = 0
substituting u = y'
u' + u^2 + 4 = 0
hence : u' = - (u^2 + 4 )
= 1 ------- (1)
integrating both sides of the equation 1
x + c = hence u = -2 tan(2x + c )
remember u = y'
y' = -2 tan(2x + c) ------ (2)
integrating both sides of the equation 2
y = ∫
therefore Y = In | cosu | + c
y = In | cos(2x + c ) | + c
Answer:
37.5
Step-by-step explanation:
It uses Sin and the law of Sin says that the ratio of given sides and an angle is always constant