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kykrilka [37]
3 years ago
13

What is the measure of angles for x and y?​

Mathematics
1 answer:
Likurg_2 [28]3 years ago
8 0
Sooooooooo You got a picture?
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Which set of numbers could represent the lengths of the sides of a right triangle?
Degger [83]

Answer:

3,4,5

Step-by-step explanation:

Here, we want to select the set that could work and the sides of a right angled triangle

the correct answer is 3,4,5

These set are called a Pythagorean triple

This is because adding the square of the two smaller number will give the square of the largest number

What we are saying here is that by adding the square of 3 and 4, we get the square of 5 which illustrates that Pythagoras theorem works for the set

8 0
3 years ago
Help I am very bad at math I need answers by tomorrow if you can help please do​
d1i1m1o1n [39]

Answer:

Step-by-step explanation:

(a - b)(a +b) = a² - b²

1 - Sin² A = Cos² A

LHS = \frac{1}{1- Sin A} + \frac{1}{1 + Sin A}\\\\= \frac{1*(1 + Sin A)}{(1- Sin A)(1 + Sin A)} + \frac{1*(1- Sin A)}{(1 + Sin A)(1- Sin A)}\\\\= \frac{1 + Sin A+ 1 - Sin A}{1^{2}-  Sin^{2} A}\\\\= \frac{2}{1 - Sin^{2} A}\\\\= \frac{2}{Cos^{2} A}\\\\= 2 Sec^{2} A

2)  Sec² A - Tan² A = 1

LHS = \frac{1}{Sec A - Tan A}\\\\=\frac{1*(Sec A + Tan A)}{(Sec A -  Tan A)(Sec A + Tan A)}\\\\=\frac{Sec A + Tan A}{Sec^{2} A - Tan^{2} A}\\\\=\frac{Sec A + Tan A }{1}\\\\= Sec A + Tan A = RHS\\\\\\

3) LHS  = Cosec² A + Cot² A

             = Cosec² A +  Cosec² A - 1

            = 2Cosec² A - 1   = RHS

4) LHS = \frac{Sec A}{Cos A}- \frac{Tan A}{Cot A}\\\\          = Sec A*\frac{1}{Cos A}-Tan A*\frac{1}{Cot A}\\\\ = Sec A * Sec A - Tan A * Tan A\\\\= Sec^{2} A - Tan^{2} A \\\\= 1

3 0
3 years ago
In ABC ,AB = 7 and AC = 17. Find measure B to the nearest degree.
Gekata [30.6K]
21 should be the right answer
4 0
3 years ago
Read 2 more answers
emily read 24 fiction books and 2 nonfiction books. what is the reatio of the numberof fiction books she read to the total numbe
Salsk061 [2.6K]

Answer:

the ratio is 12:1

Step-by-step explanation:

2 nonfiction/24 fiction = 12/1

therefore the ratio is 12:1

3 0
3 years ago
Read 2 more answers
Find the solutions to the system
Musya8 [376]
<span>y=x^2+5x+6
y=4x+12
Solution = (-3,0) and (2,20)

</span><span>y=x^2-3x-1
 y=8x-1
Solution = (0,-1) and (11,87)</span>
3 0
3 years ago
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