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Damm [24]
3 years ago
13

Plssss help me due tomorrow

Mathematics
1 answer:
Citrus2011 [14]3 years ago
6 0

Answer:

245 to 3 s.f.

Step-by-step explanation:

Total surface area of a cone.

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fgiga [73]
The answer is 0,1 and 2
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4 years ago
Please help me! I'm taking a test that closes in 10 minutes!
Ilia_Sergeevich [38]

Answers:

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<em>Hope this helps!</em> :)

3 0
3 years ago
An observer, whose eyes are 1.98 m above the ground, is standing 39.2 m away from a tree. The ground is level, and the tree is g
lozanna [386]

Answer:

The tree is 16.25 m tall.

Step-by-step explanation:

Attached is a diagram that better explains the problem.

From the diagram we see that the distance between the top of the tree and the line of sight of the observer is x.

To find the height of the tree, we need to first find x and then add it to the height of the observers line of sight from the ground.

Using SOHCAHTOA trigonometric function:

tan(20) = x/39.2

=> x = 39.2 * tan(20)

x = 39.2 * 0.364

x = 14.27m

Hence, the height of the tree is:

(14.27 + 1.98)m

16.25m

The tree is 16.25 m tall.

5 0
3 years ago
Jenna is deciding between two cell-phone plans. The first plan has $50 signup fee and costs $20 per month .The second plan has $
olasank [31]

Answer:

Step-by-step explanation:

Let x represent the number if months it will take for the total costs of both plans to be the same.

The first plan has $50 signup fee and costs $20 per month. This means that the total cost of using the first plan in a month would be

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The second plan has $30 sign up fee and cost $25 per month. This means that the total cost of using the first plan in a month would be

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For the costs to be the same,

20x + 50 = 25x + 30

25x - 20x = 50 - 30

5x = 20

x = 20/5 = 4

The costs would be the sane after 4 months. The cost would be

20 × 4 + 50

= $130

6 0
3 years ago
-3x+11=4x+2-(2x-4)<br><br> Please solve this problem with work. <br> Thanks!
tankabanditka [31]
-3x+11=4x+2-(2x-4)\\\&#10;-3x+11=4x+2-2x+4\\&#10;5x=5\\&#10;x=1
8 0
3 years ago
Read 2 more answers
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