Say that you buy 30 apples for $20, you take how many apples there are and divide it by how much they cost, they cost $1.5 per apples (looks like this, Unit/Rate)

4 0

4 years ago

a sector with the central angle measure of 4pi/5 (in radians) has a radius of 5 cm. What is the area of the sector? PLS HELP :(

katovenus [111]

Answer:

Area of the sector = 31.42 cm²

Step-by-step explanation:

Formula for the area of a sector is,

Area = $\frac{\theta}{2\pi }(\pi r^{2} )$

Here θ = central angle subtended by the arc (in radians)

r = radius of the circle

Now substitute the values given in the formula,

Area of the sector = $\frac{\frac{4\pi }{5}}{2\pi }\times \pi (5)^2$

= $\frac{4\pi }{10\pi } \times (25\pi)$

= $\frac{100}{10}\times \pi$

= 10π

= 31.416

≈ 31.42 cm²

4 0

3 years ago

Please help my last question

Furkat [3]

5 (z/10)

i think.........................................................

8 0

4 years ago

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