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svet-max [94.6K]
3 years ago
6

PLEASE HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
shtirl [24]3 years ago
8 0

Answer:

It would be the third one hope i helped

Step-by-step explanation:

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He can count and there is 6.5 blocks between his house and the park
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Noelle and karina both leave the Internet cafe at the same time, but in opposite directions. If karina travels 9 mph faster than
Vesna [10]
Noelle goes east at N mph.
Karina travels west at N + 9
then their velocity between them is (N + N + 9)
After 8 hours they travel 8(2N + 9) = 232
(2N + 9) = 29
2N = 20
N = 10 mph for Noelle
N+9=19 mph for Karina

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3 years ago
PLEASE HELP ME. GEOMETRY REFLECTIONS!!! BOGUS ANSWERS WILL BE REPORTED
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8 0
3 years ago
There is a balcony that forms part of a circle around a stage, and they need to put up a safety railing. How long of a railing d
alexandr1967 [171]

A sector is a <u>part</u> of a <u>circle</u> that is formed by two<em> radii,</em> and an <em>arc</em>. So that the length of the <em>safety railing</em> required is 31.4 feet.

A sector is a <em>part </em>of a <u>circle</u> that is formed by two <u>radii</u>, and an <u>arc</u>, thus forming a <em>central</em> angle.

Thus the required <em>length</em> of safety railing can be considered as the <u>arc</u> of the<em> sector. </em>

So that;

<u>length</u> of an <u>arc</u> = (θ / 360^{o}) * 2\pir

where θ is the <u>measure</u> of the <em>central angle</em> of the sector, and r is the <u>radius</u> of the sector.

From the given question, θ = 45°, and r = 40 feet.

So that,

<u>length</u> of the<em> safety railing </em>= (45° / 360^{o}) * 2 * 3.14 * 40

                                 = 0.125 * 2* 3.14* 40

<u>length</u> of <em>safety railing</em> = 31.4

Therefore, the <u>length</u> of the <em>safety railing</em> required is 31.4 feet.

For more clarifications on the length of an arc, visit: brainly.com/question/2005046

#SPJ1

6 0
1 year ago
When five times a number is decreased by 8, the result is 7. What is the number?<br> The number is
kumpel [21]

Answer:

3

Step-by-step explanation:

5x - 8 = 7

5x = 7+8

5x = 15

x = 15 ÷ 5

x = 3

6 0
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