Answer:
1.88
2.
3.rectangle
4.parallelogram
5.rhombus
7.square
Step-by-step explanation:
Answer: 1. C
Step-by-step explanation: I only have the answer to question 1 as the others were either too long or complicated for me to figure out.
Step-by-step explanation:
(a+b)(a+b)² = (a+b)(a²+2ab+b²)
=a(a²+2ab+b²) + b(a²+2ab+b²)
= a³+2a²b+ab² + a²b+2ab²+b³
=a³+2a²b+ a²b+ab² +2ab²+b³
=a³+3a²b+3ab²+b³
Area of square=side^2
therfror
4840=side^2
sqrt both sides
???=side
estimate
find the integers above and below when squared
50²=2500
up
60²=3600
up
70²=4900
down a little bit
69²=4761
bingo
4761<4840<4900
69²<side²<70²
the legnth of the side is between 69 and 70
Answer:
A ≈ 65.8 m²
Step-by-step explanation:
Given 2 sides and the angle between them then the area (A) is
A = 
bc sinA
= 0.5 × 19.9 × 10.7 × sin38.17°
≈ 65.8 m² ( to 1 dec. place )
