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2 years ago

Need some help with this question please

Mathematics

1 answer:

Serggg [28]2 years ago

4 0

Answer:

$\frac{15}{17}$

Step-by-step explanation:

$\cos( \alpha ) = \frac{ad}{hip} \\ \\ \sin( \alpha ) = \frac{op}{hip}$

Pythagorean theorem

hip² = op² + ad²

17² = x² + 8²

x² = 17² - 8²

$x \: = \sqrt{{17}^{2} - {8}^{2} } \\ x = \sqrt{289 - 64} \\ x = \sqrt{225} \\ x = 15$

$\sin( \alpha ) = - \frac{15}{17}$

$\sin( - \alpha ) = \frac{15}{17}$

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2 years ago

What is the graph of the function f(x) = the quantity of x squared plus 4 x minus 12, all over x plus 6?

LenaWriter [7]

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2 years ago

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mariarad [96]

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Working from the inside out, according to the order of operations, we get ...

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7 0

2 years ago

I rlly need help with this gr 11 math problem

prohojiy [21]

Answer:

a) $\frac{d-5.50}{0.45}$

b) The inverse function is a reflection of the original function across the line

y = x. For example, if the function f applied to an input x gives a result of y, then applying its inverse function g to y gives the result x. So you would use it to find the x-value at a y just like you use the original to find the y value at an x.

Step-by-step explanation:

To do an inverse of a function you first switch the independent variable (d) and the dependent variable (c).

d = 0.45c + 5.50

Then you solve for c

d - 5.50 = 0.45 c

c = (d-5.50)/0.45

8 0

2 years ago