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Mashcka [7]
3 years ago
5

Use the fundamental trigonometric identities to determine the simplified form of the expression

Mathematics
1 answer:
taurus [48]3 years ago
5 0

Cot (B) = Cos(B) / Sin(B)

Cot B * Sin B = cos(B) / Sin(B)  *  Sin(B) = Cos(B)  

Answer: Cos(B)

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kirill115 [55]

Answer:

b

Step-by-step explanation:

5 0
3 years ago
Matt and Mark went to El Rodeo to have some dinner. Matt ordered 3 tacos and 2 enchiladas, which cost him $4.93. Mark ordered 2
lord [1]

Answer:

The cost of one taco is $0.87 and the cost of one enchilada is $1.16

Step-by-step explanation:

Let the cost of tacos be X

and cost of enchiladas be y

So, by using given data, we have following equations

3X + 2Y = 4.93             (1)

2X + 4Y = 6.38             (2)

So, first multiply 1st equation by 2 and 2nd equation by 3, then subtracting 1st equation by 2nd.

= 2 × ( 3X + 2Y = 4.93)       (1)

= 3 × (2X + 4Y = 6.38)        (2)

= - (6X + 4Y = 9.86)              (1)

= 6X + 12y = 19.14            (2)

= 8Y = 9.28

Y = 9.28 ÷ 8 = 1.16

By putting the value of Y in equation 1, we get

3X + 2(1.16) = 4.93

3X + 2.32 = 4.93

X = 2.61 ÷ 3 = 0.87

Hence, the cost of one taco is $0.87 and the cost of one enchilada is $1.16.

8 0
3 years ago
A plus 5 equals negative 5a plus 5
jenyasd209 [6]
A+5=5a+5   Subtract a from each side
5=5a+5       Subtract 5 from each side
0=5a           Divide each side by the number before the variable to get it alone.
--- ---
5   5
a=0
4 0
3 years ago
Read 2 more answers
URGENT Two numbers have a sum of 2 and a difference of -16. What are the numbers?
Firlakuza [10]

Answer:

-7 and 9!

Step-by-step explanation:

To get to the sum of 2 you add -7 and 9.

To get to the diffrence of -16 you minus -7 and 9.

6 0
3 years ago
Read 2 more answers
What is tha answer to 3 2/5 = ?/5
jeyben [28]
The answer is 17/5. First you multiply 5*3=15 then you add 2 which your answer is 17/5.
4 0
3 years ago
Read 2 more answers
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