$r=6
\\d=2r=12
\\PQ=QR=RS= \frac{d}{3} = \frac{12}{3} =4
\\
\\P= \frac{1}{2}\times 2r\pi+\frac{1}{2}\times 2\times QR\times\pi+\frac{1}{2}\times 2 \frac{PQ}{2} \pi
\\
\\P=r\pi+QR\times\pi+\frac{PQ}{2} \pi
\\
\\P=6\pi+4\pi+\frac{4}{2} \pi
\\
\\P=12\pi$

4 0

2 years ago

8<br> Which expression is equivalent to 4.8 + 2.2w – 1.4w + 2.4?

krok68 [10]

Answer:

7.2 + 0.8w

Step-by-step explanation:

Combine like terms.

Here Like terms: i) 2.2w and (-1.4w)

II) 4.8 and 2.4

4.8 + 2.2w - 1.4w + 2.4 = 4.8 + 2.4 + 2.2w - 1.4w

= 7.2 + 0.8w

8 0

3 years ago

Which expression is the same as 1 ten, 3 ones, and 9 thousands?

DerKrebs [107]

The equivalent number is 9013

5 0

2 years ago