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SSSSS [86.1K]
2 years ago
5

10,160,555 round off to the nearest hundred thousand

Mathematics
1 answer:
Pavel [41]2 years ago
5 0

Answer:

10,200,000

hope it helpd

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At : a.m. the angle of elevation of the sun for one city is . If the height of a monument is approximately , what is the length
kicyunya [14]

This question is incomplete, the complete question;

At 11:30 a.m. the angle of elevation of the sun for one city is 55.7°. If the height of a monument is approximately 555 ft, what is the length of the shadow it will cast at that time? Round to the nearest foot.

Answer:

the length of the shadow will be 379 ft

Step-by-step explanation:

Given the data in the question and as represented in the diagram below;

height of monument = 555 ft

angle of elevation = 55.7°

From the image below, this makes a right angled triangle

we know that the some of the interior angles of a triangle is 180

so

∠ABC + ∠BCA + ∠CAB = 180°

90° + 55.7° + ∠CAB  = 180°

∠CAB = 180° - 145.7°

∠CAB = 34.3°

Now, using sine rule;

BC / sinA = AB / sinC

so we substitute

BC / sin( 34.3°) = 555 / sin( 55.7° )

BC / 0.563526 = 555 / 0.826098

we cross multiply

BC × 0.826098 = 0.563526 × 555

BC × 0.826098 = 312.75693

BC = 312.75693 / 0.826098

BC = 378.595 ≈ 379 ft

Therefore, the length of the shadow will be 379 ft

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2 years ago
What is the vertex of x2 + 8x + 12?
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The ratio table below shows the relationship between the weight of apples purchased and the total cost of the apples.
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There are 7 girls and 9 boys on a playground.
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The ratio of the number of girls to the total number of children is 7 : 16.

<h3>Ratio is defined as follows:</h3>
  • It is a comparison between two or more numbers that measures sizes in relation to each other
  • It describe how much of a thing is compared to another.

The number of girls in the playground = 7

The number of boys in the playground = 9

The total number in the playground is the sum of the number of girls and the number of boys.

Therefore,

total children in the playground = 7 + 9 = 16

The ratio of the number of girls to the total number of children can be express as follows:

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learn more on ratio here: brainly.com/question/26169121?referrer=searchResults

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