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2 years ago

Circles and angles: find f

Mathematics

1 answer:

Irina-Kira [14]2 years ago

5 0

Answer:

130°

Step-by-step explanation:

$e = \frac{1}{2} (100 \degree - 80 \degree) \\ \\ e = \frac{1}{2} \times 20 \degree \\ \\ e = 10 \degree \\ \\ a = \frac{1}{2} \times 80 \degree \\ \\ a = 40 \degree \\ \\ by \: interior \: \angle \: sum \: postulate \: of \: a \: \triangle \\ a + e + f = 180\degree \\40\degree + 10\degree + f = 180\degree \\50\degree + f = 180\degree \\f = 180\degree - 50\degree \\\huge \red {\boxed {f = 130\degree}}$

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2 years ago

Matthew opens a store credit card when he purchases a new sound system. The interest rate is 22.45%. He charges $4,120 to the ca

Nookie1986 [14]

Let

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3 years ago

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telo118 [61]

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3 years ago

THow much will fencing cost to enclose a field that is 725 feet by 1,021 feet if fencing costs $13.57 per foot? $47,386.44 $23,6

iogann1982 [59]

Answer:

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Length = 1021 ft

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Perimeter of the field = 2 × (length + breadth)

Perimeter = 2 × ( 1021 + 725) = 3492 ft

The cost of fencing the field is;

Cost per feet × perimeter

= $13.57 × 3492

= $47,386.44

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2 years ago

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cluponka [151]

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