Answer:
a = 2
Step-by-step explanation:
Multiply equation by 2a to get rid of denominators.
10 + a = 12
a = 2
X=4
After squaring both sides, you get
4(x+5)=x^2-20x+100
Multiply
4x+20=x^2-20x+100
Collect like terms
4x+20-x^2+20x-100=0
Reorder
24x-80-x^2=0
Change signs & Write as difference. You end up with
x^2-4x-20x+80=0
Factor
x-4=0 , x-20=0
4=4 , 0=20
x=4
Answer:
390 minutes I do believe.
Step-by-step explanation:
Answer:
129.13
Step-by-step explanation:
Triangle:
8 × 13 = 104
Semi-circle:
3.14(4²) ÷ 2 = 25.1327
25.13 + 104 = 129.13
<em>good luck, i hope this helps :)</em>
Rhombus is 4 sided figure with 4 sides same lgenth
preimiter=4 times side
35 times 4=140
perimiter=140 cm
