Answer:
I had a slightly different question, but I think its option D
(x - 3)(x + 3)
Answer:
easy peasy lemon squeasy (l o l)
Step-by-step explanation:
let the radius of one circle be r and the other be R,
there fore,
2πr + 2πR = 80
=> 2π( r + R) = 80
but we know that, R =2r
=> 2 π ( 3r) = 80
=> 3r = 40/π
=> r = 40/3π
taking the value of pi to be 3.14
=> r = 40/9.42
=> r = 4.246
hence the larger radius = 2r => 8.492
I think the answer is 1008
Step-by-step explanation:
Answer:
4. x=120
5. x=65
9. x=150
10. x=45
Step-by-step explanation:
4. Half=180
There is already a 60, so you do 180-60=120. x=120.
5. This is a parallel line, so you determine the opposite angle of 115, which is 65. That just becomes the x. x=65
9. It is similar to #5, You look at the opposite side of 30 (15+15) which is 150. That just comes to the other side which is x=150.
10. A triangle has 180 degrees in total. 45 degrees is already given, and line j is 90 degrees which means a full line is 180. 180-90=90.
90+45=135
180-135=45
x=45
Hope this helped!
