Answer:
The area of the circle is 50.24 m.
First find the radius which is half the diameter. So our radius is 4.
A =3.14 * 4^2
A= 3.14 * 16
A = 50.24
So your answer would be A.
I hope I helped!
36x^2-49
this closely matches the binomial formula of (a+b)*(a-b)=a^2-b^2
so we know:
a^2=36x^2
a=6x
b^2=49
b=7
so (a+b)*(a-b)=(6x+7)*(6x-7)=36x^2-49
38,428 - 21,728= $16,700 left over
Answer:
m<7 = 139°
Step-by-step explanation:
Given:
m<3 = (3x + 11)°
m<2 = (4x + 1)°
Required:
m<7 = ?
SOLUTION:
Given that l and m are parallel lines, m<3 and m<2 are alternate interior angles.
Alternate interior angles are congruent. Therefore:
m<3 = m<2
(substitution)
Solve for x
Divide both sides by -1
Find m<2:
m<2 = (4x + 1)
Plug in the value of x
m<2 = 4(10) + 1 = 40 + 1
m<2 = 41°
Find m<7:
m<2 + m<7 = 180° (consecutive interior angles are supplementary)
41° + m<7 = 180° (substitution)
m<7 = 180 - 41 (subtracting 41 from each side)
m<7 = 139°
First you need to multiply the number on the outside of the parentheses to what's inside. Then you need to subtract 1440 from both sides. After that you need to get all of the u's on one side so you subtract 256u from -160u and then you divide 832 by 96.