Answer:
121 cm²
Step-by-step explanation:
Square's area formula is
A=a²
where a stands for a side of the square
A=(11 cm)²
A=121 cm²
whenever you're talking of area you put cm²
Answer:
m = -8
Step-by-step explanation:
Use the slope formula: 

m = -8
Answer:7 4ts
Step-by-step explanation:
= 488000
(real number)
= 4.88 × 105
(scientific notation)
<span>= 4.88e5
maybe this will help ?</span>
Answer:
y = 3
Step-by-step explanation:
The two inner right triangles are similar, thus the ratios of corresponding sides are equal, that is
=
( cross- multiply )
y² = 63 ( take the square root of both sides )
y =
=
=
×
= 3