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Andreas93 [3]
3 years ago
11

What is cos 30º? O A. 13 B. 1 Oc. O D. 3 2 E. O F. 1 /

Mathematics
1 answer:
babunello [35]3 years ago
7 0

Answer: I do not understand the options you gave but but cos30º is equal to \sqrt{3}/2 which is 0.86602540378.

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What is 13÷110.89, and what is 9÷487.8, and what is 8÷52.176 thank you answer this as soon as possible
Taya2010 [7]
This is college how about study your own work instead of cheating maby spend a little more time on math
3 0
3 years ago
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The diagram below models the layout at a carnival where G, R, P, C, B, and E are various locations on the grounds. GRPC is a par
mylen [45]

Answer:

The similar triangles are \triangle BPE and \triangle BCG

BE = 321 and PE =286

Step-by-step explanation:

Given

See attachment for the required figure

Solving (a): The similar triangles

The similar triangles are \triangle BPE and \triangle BCG

Solving (b): Why they are similar

Both triangles are similar because \triangle BCG is dilated (i.e. enlarged) and then reflected to give \triangle BPE.

Solving (c): Calculate BE and PE

The following are equivalent ratios

BP: BC = BE : BG

and

BP: BC = PE : CG

Solving for BE, we have:

BP: BC = BE : BG

Substitute the known values

250:350 = BE:450

Express as fraction

\frac{250}{350} = \frac{BE}{450}

Multiply both sides by 450

450 * \frac{250}{350} = BE

321 = BE

BE = 321 -- approximated

Solving for PE, we have:

BP: BC = PE : CG

Substitute known values

250:350 = PE:400

Express as fraction

\frac{250}{350} = \frac{PE}{400}

Multiply both sides by 400

400 * \frac{250}{350} = PE

286 = PE

PE =286

5 0
3 years ago
The price of a digital camera sold in stores is $129. It is sold on eBay for $65. What is the percent decrease from the store's
8090 [49]
What i did is multiply 65 times 100, and divided by 129, 
(65)(100)= 6500
6500/129= 50.3

then to check i did multiply 50.3 by 129, and divided by 100
(50)(129)= 6450
6450/100= 64.50 


I don't think its 50% or either 51%, because 50% gives something less than 65, and 51% gives more than 65. So maybe its in the middle.

to get the right percentage do 50.1 or 5.6 times 129, and then divide by 100

6 0
3 years ago
Distance between (3,-7) and (3,5)
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Answer:

The distance between the two points, (3, -7) and (3,5) is 12

Step-by-step explanation:

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3 0
3 years ago
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Allisa [31]

Answer:

123

Step-by-step explanation:

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