Answer:
c < -27
Step-by-step explanation:
-7>20+c
Subtract 20 from both sides
-7 - 20 > 20 + c -20
Simplifying
-27 > c
or
c < -27
Answer:
94.2 cm
Step-by-step explanation:
Circumference is the diameter x pi. Multiple 30 x 3.14
Answer:

Step-by-step explanation:
Let the points be A and B
A ( -13 , 15 ) ⇒( x₁ , y₁ )
B ( 20 , -7 )⇒( x₂ , y₂ )
<u>Finding</u><u> </u><u>the</u><u> </u><u>slope</u><u> </u> :

plug the values
⇒
We know that, 
⇒
Calculate the sum
⇒
Reduce the numbers with G.C.F 11
⇒
Hope I helped !
Best regards!!
The answer to this question is:
9x+8/3x^2
Answer:
2x + 3y > 6 (1)
3x – 2y = 9 (2)
x + 5y = 20 (3)
From (1) and (2), we have:
(2x + 3y) - (3x - 2y) > 6 - 9
5y - x > -3 (4)
From (3) and (4), we have:
(x + 5y) - (5y - x) > 20 - (-3)
2x > 23
x > 12,5 (5)
From (3) and (5), we have:
x + 5y = 20 ⇔ 12,5 + 5y > 20
5y > 7,5
y > 1,5
So: C = 4x + 3y > 12,5 × 4 + 1,5 × 3 = 50 + 4,5 = 54,5
Conclusion: C > 54,5