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Yuliya22 [10]
3 years ago
14

Evaluate: (sec²37° -cot²53°)tan21°tan69°-sin51°cos49°-cos51°sin49°

Mathematics
1 answer:
olchik [2.2K]3 years ago
8 0
= 1 * 1 - (sin (51 + 49)

= 1 - 0.9848 
= 0.0152  answer
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Find the distance between (–3, –5) and (3, 4).
zhenek [66]

Answer:(6,9)

Step-by-step explanation:

4 0
2 years ago
What is the value of h(-7)<br><br> h(x) =|3x| -1
Art [367]

Answer:

20

Step-by-step explanation:

h(-7) just means that inside the x value, you replace the x with a -7.

h(-7) = |3x| - 1

h(-7) = | 3(-7)| - 1

h(-7) = | -21 | - 1

NOTE: -21 is inside |x|, those straight lines mean absolute value. No matter what, any negative number would turn into a positive one. And if it’s posititve, then it stays positive.

h(-7) = 21 - 1

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6 0
3 years ago
Triangle DNO has vertices at D(5, 8), N(– 3, 10), and O(– 3, 6). If vertex D is translated 4 units to the right, the best name f
prisoha [69]

Using distance between two points to find the lengths of the edges of the triangle, the correct option is:

b. Isosceles

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d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}

Vertex D is translated 4 units to the right is (9,8).

The lengths of the edges are:

DN = \sqrt{(9 - (-3))^2 + (8 - 10)^2} = \sqrt{12^2 + 2^2} = \sqrt{148}

DO = \sqrt{(9 - (-3))^2 + (8 - 6)^2} = \sqrt{12^2 + 2^2} = \sqrt{148}

NO = \sqrt{(-3 - (-3))^2 + (10 - 6)^2} = \sqrt{0^2 + 4^2} = 4

<u>Two edges of the same length</u>, hence, it is an isosceles triangle, given by option b.

You can learn more about distance between two points at brainly.com/question/18345417

6 0
2 years ago
Please help!!! Math 10 points!
zheka24 [161]

Answer:

First Blank: 20 photos

Second Blank: 6 minutes

Third Blank: 45 Photos

Fourth Blank: 10 minutes.

Step-by-step explanation:

4*5=20 Photos

30/5=6 Minutes

9*5=45 Photos

50/5=10 Minutes

4 0
3 years ago
Read 2 more answers
Plz help MATH HW<br>explain/answer
Misha Larkins [42]

No because the sum could also be irrational number which for example it could be square root of 9 or 49

       Hope this helps answer your question

6 0
3 years ago
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