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Law Incorporation [45]
3 years ago
13

Prove that sinΘcosΘ=cotΘ is not a trigonometric identity by producing a counterexample.

Mathematics
1 answer:
yan [13]3 years ago
4 0
<span>sin x + cos x = l would be the answer</span>
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Someone help me asap math 10
Ghella [55]

Answer:

x ≈ 25.4 Km

Step-by-step explanation:

Using the tangent ratio in the right triangle on the right

tan54° = \frac{opposite}{adjacent} = \frac{opp}{17} ( multiply both sides by 17 )

17 × tan54° = opp , thus

opp ≈ 23.4

-------------------------------------------

Using the cosine ratio in the right triangle on the left

cos23° = \frac{adjacent}{hypotenuse} = \frac{23.4}{x} ( multiply both sides by x )

x × cos23° = 23.4 ( divide both sides by cos23° )

x = \frac{23.4}{cos23} ≈ 25. 4 Km ( to the nearest tenth )

6 0
3 years ago
Algebra help please? thank you SO much in advance!
Harman [31]
X(x + 3)  + x(x - 3) = 2
x^2 + 3x +x^2 - 3x = 2
2x^2 = 2
x^2 = 1
x = +1 and x = -1

answer 
x = +1 and x = -1
6 0
3 years ago
.!.$.!.!.’!!.!!.!.!need help
artcher [175]

oml! ill try give me a min tho

7 0
3 years ago
Read 2 more answers
An individual is at a restaurant with two other people and they are trying to determine the tip for their check total which came
zlopas [31]

Answer:

c. The tip is $10.00

Step-by-step explanation:

The total bill in the restaurant is = $ 68.42

They wanted to pay a gratuity of 15%

Therefore the correct tip can be calculated as :

= 68.42 of 15%

= $68.42 \times \frac{15}{100}$

= 68.42 x 0.15

= 10.263

≈ 10 (approx.)

Thus the individual along with the other two wishes to pay a tip $10.00 for the total value.

7 0
2 years ago
Your corner store is having a sale on chips . A 40 -pack of Doritos cool ranch chips cost $25.75 but it's on sale at 35% off. Ho
Lorico [155]

Answer:

  $16.74

Step-by-step explanation:

If the price has been reduced by 35%, it is 100% -35% = 65% of what it was.

  0.65 × $25.75 = $16.7375 ≈ $16.74

You will pay $16.74 for the chips.

6 0
3 years ago
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