Answer: 32
Step-by-step explanation:
1. (2r + 9)(2r-9) = 4r^2 -81
+ (2r - 9)^2 = 4r^2 - 36r + 81
= 8r^2 - 36r
2. 12 - 5 [ a^2 + a - 1 ] + 5a
= 12 - 5a^2 - 5a + 5 +5a
= 17 - 5a^2
x^3 + 3x^2 + 6x + 18
______
3. x-3/ x^4 + 7
- ( x^4 - 3x^3)
----------------
3x^3 + 7
- (3x^3 - 6x^2)
-------------------
6x^2 + 7
- (6x^2 - 18x)
-------------------
18x + 7
- (18x - 54)
--------------
7 + 54 = R = 61
welp That's What I get
Answer:

Step-by-step explanation:
Red ribbon
=Blue ribbon ×5
=11 m
<em>So</em><em>,</em><em> </em><em>changes</em><em> </em><em>the</em><em> </em><em><u>times</u></em><em><u> </u></em><em><u>symbol</u></em><em> </em><em>into</em><em> </em><em><u>divide</u></em>
11m ÷ 5
=2.2m
Check!
Red ribbon=Blue ribbon × 5
11m=Blue ribbon × 5
11m÷5=Blue ribbon
2.2m=Blue ribbon
Blue ribbon=2.2m
Answers
2.2m
Answer:
Step-by-step explanation:
Given
- A is between C and T
- CA =4x + 6
- AT =7x-6
- CT =132
As per segment addition postulate:
- CT = CA + AT
- 4x + 6 + 7x - 6 = 132
- 11x = 132
- x = 132/11
- x = 12