Answer:
see explanation
Step-by-step explanation:
a
The tangent and the radius at the point of contact form a right angle
Using Pythagoras' identity on the right triangle formed.
Let x be the distance from the centre to P, then
x² = 4² + 10² = 16 + 100 = 116 ( take the square root of both sides )
x = 
≈ 10.77 cm (to 2 dec. places )
b
let the required angle be Θ, then
Using the sine or cosine ratio in the right triangle.
cosΘ = 
= 
Θ = 
( ) ≈ 21.8°
20 / 1000 = 0.02
0.02 x 100 = 2
The answer is 2 percent.
Answer:
21
Step-by-step explanation:
Find 60% of 35.
To do this you have to multiply 60 by 35, and divide that answer by 100, and your answer should that number. In this case, the answer is 21, because 60x35 is 2100, and 2100/100 is 21.
Answer:
the shapes is going to look like an oval
Step-by-step explanation:
WELCOME TO BRAINLY
Answer
Given,
proton represent positive charge
the integer that will give the representation of 5 protons will be equal to + 5
an electron represents negative charge
the integer that will give the representation of 3 electrons will be equal to -3
