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3 years ago

Used addition properties and strategies to find the sum 74+35+16+45=

Mathematics

1 answer:

iVinArrow [24]3 years ago

4 0

74 + 35 + 16 + 45 =

= 74 + 16 + 35 + 45

= 70 + 4 + 10 + 6 + 30 + 5 + 40 + 5

= 70 + 10 + 4 + 6 + 30 + 40 + 5 + 5

= 80 + 10 + 70 + 10

= 80 + 10 + 10 + 70

= 100 + 70

= 170

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Read 2 more answers

HELP WITH THIS QUESTION PLEASE!

belka [17]

Answer:

23.7°

9.1~ft

Step-by-step explanation:

Formula for the area of a sector of central angle n (in degrees) and radius r:

$A = \dfrac{n}{360^\circ}\pi r^2$

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r = 22 ft

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$100 = \dfrac{n}{360^\circ}\pi (22^2)$

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The central angle measures 23.7°.

Formula for the length of an arcs of a circle with central angle n (in degrees) and radius r:

$s = \dfrac{n}{360^\circ}2 \pi r$

We have:

n = 23.7°

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$s = \dfrac{74.4}{360}2 \pi (22 ft)$

$s = 9.1~ft$

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3 years ago