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____ [38]
3 years ago
11

Use complete the square method on 3x? - 18x + 5 = 47

Mathematics
1 answer:
antiseptic1488 [7]3 years ago
8 0

Answer:

u can

Step-by-step explanation:

u most square root both sides

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Write the number shown in standard notation. 1.02 x 10 First Correct answer gets Brainliest
SIZIF [17.4K]

Answer:

1.02×10¹ = 10.2

Step-by-step explanation:

We have given a number in scientific notation as follows 1.02×10¹

We need to convert it into standard notation.

1 is in ones place, 0 is in tenths place and 2 is in hundredths place.

1.02\times 10^1=\dfrac{102}{100}\times 10\\\\=\dfrac{102}{10}\\\\=10.2

So, the standard notation of 1.02×10¹ is 10.2

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3 years ago
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

∵ t = 4.1 inches, r = 7.1 inches, and m∠S = 45°

→ Substitute them in the rule above

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

∴ s² = 16.81 + 50.41 - 41.1677568

∴ s² = 26.0522432

→ Take √ for both sides

∴ 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

3 0
3 years ago
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sweet [91]

no hhahahahahahaahahaahahhaahha

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3 years ago
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Delvig [45]

Answer:

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Step-by-step explanation:

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Answer:

8 hours

Step-by-step explanation:

70-10

60÷7.50= 8 hours

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3 years ago
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