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3 years ago

Trigonometry Special Right Triangles Find the exact value of sec 60* - cosec 30* - sin 0*.

Mathematics

1 answer:

evablogger [386]3 years ago

8 0

Answer:

Step-by-step explanation:

cos(60) = ½

sec(60) = 2

sin(30) = ½

cosec(30) = 2

sin(0) = 0

2 - 2 - 0 = 0

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Choose all of the terms that best describe each of the sets of lines or points.

levacccp [35]

Answer: Collinear, equidistance, and noncoplanar

Step-by-step explanation:

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3 years ago

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schepotkina [342]

Answer:

I think the answer is 11. 18

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3 years ago

The sum of the digits of a two-digit number is 8. The difference between the number and the reversed number is 10 more than the

Vesna [10]

Answer:

The number is 62

Step-by-step explanation:

Let the digits of the number be T and U;

A 2 digit number is represented as: 10T + U

So,

$T + U = 8$

$10T + U - (10U + T) = 10 + 10U + T$

Required

Find the digit

Make U the subject in the first equation

$U = 8 - T$

Substitute 8 - T for U in the second

$10T + U - (10U + T) = 10 + 10U + T$

$10T + 8 - T - (10*(8-T) + T) = 10 + 10(8 - T) + T$

$10T + 8 - T - (80-10T + T) = 10 + 80 - 10T+ T$

$10T + 8 - T -80+10T - T = 10 + 80 - 10T+ T$

Collect Like Terms

$10T + 10T - T- T + 8 -80 = 10 + 80 - 10T+ T$

$18T -72 = 90 - 9T$

$9T + 18T = 90 + 72$

$27T = 162$

$T = 162/27$

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Recall that:

$U = 8 - T$

$U = 8 - 6$

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<em>Hence, the number is 62</em>

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2 years ago

12+5x-8=12x-10<br> Help me solve it step by step

9966 [12]

The first thing you want to do is combine like terms

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3 years ago

Determine if the function is an even function, an odd function or neither. Y=-6x^6-5x^2- 2

nadya68 [22]

Answer:

Even

Step-by-step explanation:

The function Y=-6x^6-5x^2- 2 is a polynomial. A polynomial function is a function where a whole number exponent greater than 1 is on the variable. All polynomial functions have a degree known as the highest exponent. This degree also determines if the functions is even, odd or neither.

The highest exponent on the polynomial is 6 which is an even number. This polynomial is even.

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3 years ago