Answer:
A = 28.26 cm², P = 38 units, A = 20 units², C = 43.96 units
Step-by-step explanation:
1) Our area of a circle is πr². Since our r = 3 cm, we can just substitute for r.
A = πr²
A = (3.14)(3)²
A = (3.14)(9)
A = 28.26 cm², like in your work.
2) Our formula for perimeter is 2l + 2w. We substitute for l = 12 and w = 7.
P = 2l + 2w
P = 2(12) + 2(7)
P = 24 + 14
P = 38 units
3) The formula for a triangle's area is A = 
bh, so we substitute for b = 10 and h = 4.
A = bh
A = (10)(4)
A = (40)
A = 20 units²
4) Circumference is 2πr, and we substitute for r = 7.
C = 2πr
C = 2(3.14)(7)
C = (3.14)(14)
C = 43.96 units
Yes because is we replace both numbers it would end as...
ab=cd
14=14
13x−4=−36−27x+12: Distributive property
13x−4=−24−27x: Combine like terms
40x=−20: Addition Property of equality
ANSWER
EXPLANATION
The given inequality is,
By the definition of absolute value,
We divide through by negative 1, in the first part of the inequality and reverse the sign to get,
We simplify now to get,
Divide through by 2 to obtain,
Answer:
y=-1/4x +3
Step-by-step explanation:
x/2 + 2y = 6
Subtract x/2 from both sides
2y=-x/2 +6
Simplify by dividing by 2
y=-1/4x +3
