2 years ago

Pleaseeeee hellllppp

Mathematics

1 answer:

kiruha [24]2 years ago

5 0

The answer is b hope i help

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Alaska has a land area of about 1,700,000 km² Florida has a land area 1/10 the size of Alaska what is the land area Florida

ElenaW [278]

1/10 of 1,700,000 km² is 170,000 km² .

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2 years ago

Which expression is equal to 16.25 ÷ 2.5?

kirza4 [7]

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3 years ago

What is the area of the sector with a central angle of 49° and a radius of 11 cm? Use 3.14 for pi and round your final answer to

olga_2 [115]

Answer:

$\boxed{\text{51.71 cm}^{2}}$

Step-by-step explanation:

If the angle θ is in radians, the formula for the area (A) of a sector of a circle is

A = ½r²θ

If θ is in degrees

$A = \dfrac{1}{2}r^{2}\theta \times \dfrac{\pi \text{ rad}}{180^{\circ}}= \pi r^{2}\times\dfrac{\theta }{360}$

Data:

θ = 49°

r = 11 cm

Calculation:

$\begin{array}{rcl}A& = &3.14\times 11^{2}\times\dfrac{49}{360}\\\\ & = &3.14 \times 121 \times 0.1361\\ & = & \mathbf{51.71}\\\end{array}\\\text{The area of the sector is }\boxed{\textbf{51.71 cm}^{2}}$

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2 years ago

Mentally estimate the total cost of items that have the following prices 1.85 $ .98 $3.49 $9.78 and $6.18 round off your answer

Andrews [41]

The total cost is $22.28, rounded to the nearest half dollar is $22.50.

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2 years ago

Which expression is equivalent to (x y) z?

stepan [7]

Answer:

x(yz)

Step-by-step explanation:

(xy)z = x(yz) by the associative property of multiplication.

Answer: x(yz)

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2 years ago

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