R500 in the ratio 12:9:4

Mark is 4 year older than 2 times his sister Helena's Age. Let h represent Helena's age and m represent Mark's age. Write an equ

andreyandreev [35.5K]

2h + 4 = m (twice the value of Helena's age plus 4 will equal Mark's age) 3j - 6 = g (three time John's age minus 6 will equal Glenn's age) 3.35s + .80b = 11.75

7 0

3 years ago

Find the exact value

Mnenie [13.5K]

By using properties for trigonometric functions and trigonometric expressions, we find that the exact value of the sine of the angle 5π/12 radians is $\frac{\sqrt{2+\sqrt{3}}}{2}$ .

<h3>How to find the exact value of a trigonometric expression</h3>

Trigonometric functions are trascendent functions, these are, that cannot be described algebraically. Herein we must utilize trigonometric formulae to calculate the exact value of a trigonometric function:

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 - \cos \frac{5\pi}{6} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \cos \frac{\pi}{6} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{1 + \frac{\sqrt{3}}{2} }{2} }$

$\sin \frac{5\pi}{12} = \sqrt{\frac{2+\sqrt{3}}{4} }$

$\sin \frac{5\pi}{12} = \frac{\sqrt{2+\sqrt{3}}}{2}$

By using properties for trigonometric functions and trigonometric expressions, we find that the exact value of the sine of the angle 5π/12 radians is $\frac{\sqrt{2+\sqrt{3}}}{2}$ .

To learn more on trigonometric functions: brainly.com/question/15706158

#SPJ1

7 0

2 years ago

I need help, look at the picture.

worty [1.4K]

The order would be
A
C
B

7 0

4 years ago

X2+ y2 − 8x + 12y + 27 = 0

snow_lady [41]

Central (4,–6)

Radius 5

3 0

3 years ago

Read 2 more answers

Will the solution x > -7 have an open or closed circle?

Vikki [24]

Answer:

Open

Step-by-step explanation:

The <, > signs will have an open circle and the greater than or equal to or less than or equal to will be a be a closed circle.

Hope this helps and I hope u have an Amazing day!!

8 0

3 years ago

R500 in the ratio 12:9:4​

R500 in the ratio 12:9:4