Answer:
Half; twice
Step-by-step explanation:
In a circle, the radius is said to be the distance from the center of the circle to any point on the edge of the circle, it is denoted as "r". The radius is called a radii if it is more than one.. The radius of a circle is half the length of the diameter of a circle because the diameter of a circle is the distance of the line that passes through the center of a circle touching both edges of the circle. It is denoted as "d".
Thus,
2r = d
r = d/2
For example, if the radius of a circle is 10cm, the diameter of the circle will be calculated as: d = 2 * 10 = 20cm. Which means if the radius is 10cm, diameter will be 20cm.
Therefore, the radius of a circle is half the length of its diameter. the diameter of a circle is twice the length of its radius
Answer:
C. -7x^2 - 28
Step-by-step explanation:
Firstly simplify the bracket before doing anything;
4x(3x - 7) = 12x^2 - 28x
then go back to the question and substitute the expression(12x^2 - 28x) on the bracket and then work out the question;
12x^2 - 28x -19x^2...then group the values with the same exponent of x,
(12x^2 - 19x^2) - 28x
; -7x^2 - 28x
Answer:
if you are looking for the area this are the answers
Step-by-step explanation:
4: 
how: .5 x 25 x 10 = 125
/////////////////////////////////////
5: 
how: .5 x 16 x 13 = 104
remember to put the ".5" when you are multiplying
I hope this help you
have a good night :)
Step-by-step explanation:
okay
I think you should use the method of tan 30
and then find x by using pythagorean theorem
Using Pythagoras in the first question
c=
which is approximately 16.5
for the second question
we also use Pythagoras
