Answer:
The arc length XY is equal to
or 
Step-by-step explanation:
The picture of the question in the attached figure
step 1
Find the circumference of the circle H
The circumference is given by the formula

we have

substitute

step 2
we know that
The circumference of a circle subtends a central angle of 360 degrees
so
using proportion
Find out the length of the arc xy if the central angle is equal to 100 degrees
Remember that
---> by central angle

Simplify
----> exact value
To find out the approximate value
assume

substitute
----> approximate value
therefore
The arc length XY is equal to
or 
Answer:
2(x+3) (x+1)
Step-by-step explanation:
2x² + 8x + 6
Splitting the middle term (8x)..
2x² + 6x + 2x + 6 =0
x (2x + 6) + 1 (2x + 6)
(2x + 6) (x + 1)
2(x + 3) (x + 1)
Hence, option C. is the correct answer.
Answer:
2nd, 4th and 5th one
Step-by-step explanation:
Hey There!
So remember in order for it to be a proportional relationship it has to be a straight line and it has to go through the origin (0,0)
The 2nd, 4th and 5th ones are non proportional relationships
Why? Well because they don't go through the origin
Answer:
35 cm
Step-by-step explanation:
You can use the Cosine Rule to find the length of a side when two sides and the included angle are given.
a² = b² + c² - 2bc cos A
a² = (36²) + (52²) - 2(36)(52) cos 42°
a² = (1296) + (2704) - (3744)(0.7431448255)
a² = (4000) - (2782)
a² = 1218
a = ✓1218
a = 34.9 cm
Its not linear because growth rates vary with age, gender also plays a role in the change