Answer:
see explanation
Step-by-step explanation:
The recursive formula allows us to calculate the next term in the sequence from the previous term.
The common ratio r = = - 4
Thus multiplying any term by - 4 gives the next term, that is
= - 4 with a₁ = 6
The area would be 144cm^2.
In order to find the area, we need to know the length of the rectangle. We can find that using the perimeter formula.
2l + 2w = P
2l + 2(36) = 80
2l + 72 = 80
2l = 8
l = 4
So now that we know the length is 4, we can find the area using that formula.
A = lw
A = (4)(36)
A = 144
104.86 cm²
B.
87.47 cm²
C.
27.02 cm²
D.
10.54 cm²
7 x 7 = 49 area of square.
The radius of the circle is half the diameter. 7 cm/2 = 3.5
A = 3.14 × 3.5 cm × 3.5 cm = 38.465
Finale step. Subtract the area of the circle from the area of the square.
49 cm^2 −38.465 cm^2 = 10.535 or round to 10.54 cm^2
D. 10.54
Answer:
A
Step-by-step explanation:
15^2 = 225 (memorize everything to 20, thank me later)
39^2 = 1521 (just use a calculator for everything higher)
225 + 1521
1521 =?= 45^2
45^2 = 2025
1521 =/= 2025
Just to be sure, I'll do 15^2 + 45^2 (going to be too much)
225 + 2025 = 2250
2250 =/= 1521