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GrogVix [38]
3 years ago
8

Please help ! (FINALS)

Mathematics
1 answer:
anygoal [31]3 years ago
8 0

Answer:

Rachel is correct

Step-by-step explanation:

We can calculate angle T by using cosine rule where;

t² = r² + m² - 2rm cos T

From the diagram, we see that;

t = 30

r = 18

m = 24

Thus;

30² = 18² + 24² - 2(18 × 24)cosT

900 = 324 + 576 - 864cosT

864cosT = 900 - 324 - 576

864cosT = 0

cosT = 0/864

T = cos^(-1) 0

T = 90°

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What is the length of the hypotenuse? Answer : 17
leonid [27]

Answer:

Below.

Step-by-step explanation:

Finding the hypotenuse:

Recall the formula of Pythagoras'theorem,

  • (Hypotenuse)² = (Base)² + (Perpendicular)²

Given that base = 8 and perpendicular = 15

Plugging the values,we obtain

  • H² = 8² + (15)²
  • H² = 64 + 225
  • H² = 289
  • H = √(17*17)
  • H = 17

Now applying trigonometric functions:

Recall SOHCAHTOA , it's very helpful.

Sin θ = Sin A = Opposite/Hypotenuse

  • Sin A = 15/17 ≈ 0.88

cos θ = cos A = Adjacent/Hypotenuse

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Tan θ = tan A = Opposite/Adjacent

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Note: The values in decimal are rounded to nearest hundredth.

3 0
2 years ago
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
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anyanavicka [17]

Answer:

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4 0
3 years ago
Read 2 more answers
Last week, the price of cherries at the corner deli was $4.99 per pound. This week, cherries at the same deli are on sale at a 1
ANEK [815]

Answer:

Your answer should be 15.905625, if it's not 15 percent off per pound.

Step-by-step explanation:

Multiply 4.99 x 3.75 then multiply that answer (18.7125) by .15

That will leave you with 2.806875, which then you subtract that from 18.7125

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4 0
3 years ago
1/2x=14<br> Help please I’ve been stuck on this how do I check it?
n200080 [17]
Divided both sides by 1/2
1/2x/(1/2)=14/(1/2)
x=14/(1/2)=14/0.5=28
The answer will be x=28
7 0
3 years ago
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