Answer:
perimeter of figure = 24.28
Step-by-step explanation:
semicircle ' s perimeter = π r = 3.14 × 2 = 6.28 cm
perimeter of 3 sides of parallelogram = 7 +7+4= 18 cm.
perimeter of figure = 18 +6.28 = 24.28
approx value = 24.30 cm
Answer:
1. x=6
2. x=9
Step-by-step explanation:
1.

2.

<u>Written Explanation: </u>
1.
-2x(3x+9)=-54
-6x-`8=54 (Distributive property)
Add 18 to both sides
-6x=-36
Divide both sides by -6 (negative divided by a negative equals a positive)
x=6
2.
2(3x+4)-3x=35
6x+8-3x=35 (distributive property)
3x+8=35 (combine Iike terms and then subtract them 6x-3x=3x)
Subtract 8 from both sides
3x=27
Divide both sides by 3
x=9
the right answer is 12 and if you ever need more help just use the app mathaway
0.03448275862I would round this to the nearest 10th which is 0.035 Or if it is easier you can leave it like it is. :)<span>
</span>