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Marina86 [1]
4 years ago
12

Please help me with 14 and 15

Mathematics
1 answer:
tino4ka555 [31]4 years ago
3 0
I don't know what 15 is but I think the answer to 14 is 9 cm
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What is the value of R
frutty [35]

Answer:

2.45 × 10^{6}

Step-by-step explanation:

using the rules of exponents

• \frac{a^{m} }{a^{n} } = a^{(m-n)}

• (a^m)^{n} = a^{mn}

evaluating the numerator

(3.8 × 10^{5})² = 3.8² × (10^5)^{2} = 14.44 × 10^{10}

R = \frac{14.44.10^{10} }{5.9.10^{4} }

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7 0
3 years ago
Which of the following measurements results in the largest circle?
AnnZ [28]

Answer:

A

Step-by-step explanation:

A) r = 8

B) r = 4

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5 0
2 years ago
How do I calculate the perimeter and the area
patriot [66]
It is a semicircle so you'd use this formula for the area:

πr² / 2

Then substitute 2 into r and solve (2 because it's the radius, 4 is the diameter)

You would use this formula for the perimeter:

(πd / 2) + d
or
πr + 2r

Then substitute 4 into d / 2 into r and solve.

Hope I helped :)
3 0
3 years ago
An advertisement reads “All Books 28 Percent Off.” A best-selling novel is originally priced at $18.99. About how much money wil
Leviafan [203]

Answer:

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Step-by-step explanation:

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OLga [1]

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