Answer:
Step-by-step explanation:
These binomials make up the difference of squares.
3x * 3x = 9x^2
3x * 5 = 15x
-5 * 3x = - 15x
-5 * 5 = - 25
Notice the 2nd and 3rd terms. They are equal except that one is plus and the other minus. That means they cancel. You are left with
9x^2 - 25
Answer:
L: 19, W: 5 Area: 70
Step-by-step explanation:
2 * (L+W) = 38
L + W = 19
L = 2 * W + 4
2 * W + 4 + W = 19
3W=15
W=5
L=14
Area= 5 x 14 =70
Answer:
Step-by-step explanation:
its a variable. this one represents x. a variable is something that represents an unknown value.
Hypotenuse of the right triangle: h=sqrt(4^2+6^2)
h=sqrt(16+36)
h=sqrt(52)
h=sqrt(4*13)
h=sqrt(4) sqrt(13)
h=2 sqrt(13)
Total Area: T.A.=2*(4*6/2)+[4+6+2 sqrt(13)] (8)
T.A.=2*(12)+[10+2 sqrt(13)](8)
T.A.=24+(10)(8)+[2 sqrt(13)](8)
T.A.=24+80+16 sqrt(13)
T.A.=104+16 sqrt(13)
Answer:
( 104+16 sqrt(13) )
Answer:
is 3/7
Step-by-step explanation: