Answer:
x-5=carter's height
Step-by-step explanation:
the x represents carter's height and since angela is 5 inches shorter than him you subtract 5 to get carter's original height
Answer:
AD∥BC,BD is the transversal line
⟹∠ADB=∠DBC (∵alternate angles)
⟹z=30
Step-by-step explanation:
Mark because if you look at 0.(6) it is bigger than 0.(4)5
Lets check all the choices:
A. subtraction:
(3x+2)-(4y-11)=3x+2-4y+11=3x-4y+13
similarly, (4y-11)-(3x+2)=-3x+4y-13
both are polynomials (of 2 variables)
B. (3x+2)(4y-11)=12xy-33x+8y-22, which is a polynomial
C. (3x+2)+(4y-11)=3x+2+4y-11=3x+4y-9, which is a polynomial
D.
both
and
are rational expressions in 2 variables, not polynomials
Answer: D
Step-by-step explanation:
m<C = 90°
According to the laws of cosine,
c²= a²+b²-2ab. cos(C)
c²=a²+b²-2ab.cos(90°)
c²=a²+b²-2ab.0 { cos(90°)= 0}
c²=a²+b²
a²=c²-b²