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Hoochie [10]
3 years ago
5

Order these rational numbers in order from least to greatest 1/5 and -0.4 and -1/4 and 0.5

Mathematics
1 answer:
natita [175]3 years ago
7 0
-0.4, -1/4, 1/5, 0.5
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In ΔRST, t = 4.1 inches, r = 7.1 inches and ∠S=45°. Find the length of s, to the nearest 10th of an inch.
dem82 [27]

Answer:

The length of s is 5.1 inches to the nearest tenth of an inch

Step-by-step explanation:

In Δ RST

∵ t is the opposite side to ∠T

∵ r is the opposite side to ∠R

∵ s is the opposite side to ∠S

→ To find s let us use the cosine rule

∴ s² = t² + r² - 2 × t × r × cos∠S

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→ Substitute them in the rule above

∴ s² = (4.1)² + (7.1)² - 2 × 4.1 × 7.1 × cos(45°)

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∴ s = 5.10413981

→ Round it to the nearest tenth

∴ s = 5.1 inches

∴ The length of s is 5.1 inches to the nearest tenth of an inch

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2) 30,000*0.03 = $900
3) 32,000*0.05 = $1600

Adding these together, we get $3100
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3 years ago
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