The Year in Review Yr 10 5.3 SACHS

Which statement is correct?

• $\sin53=\frac{x}{15}$

• $\cos53=\frac{x}{15}$

• $\tan53=\frac{x}{15}$

• $\cos53=\frac{15}{x}$

Which statement is correct?

• $\sin\theta=\frac{16}{9}$

• $\cos\theta=\frac{9}{16}$

• $\tan\theta=\frac{16}{9}$

• $\tan\theta=\frac{9}{16}$

Which statement is 'incorrect'?

•  $\sin\theta=\frac{O}{H}$ 

•  $\cos\theta=\frac{A}{H}$ 

•  $\tan\theta=\frac{O}{A}$ 

•  $\sin\theta=\frac{A}{H}$ 

The Cosine Rule is

• $c^2=a^2+b^2-2ab\cos C$

• $c^2=a^2+b^2+2ab\cos C$

• $c^2=a^2+b^2-ab\cos C$

• $c^2=a^2+b^2-ab\cos C$

• Area = $\frac{1}{2}\times7\times10\times\sin25\degree$

• Area = $\frac{1}{2}\times7\times10\times\cos25\degree$

• Area = $\frac{1}{2}\times7\times10\times\tan25\degree$

• Area = $\frac{1}{2}\times7\times10$

The equation of this graph could be

• $y=x^2+2$

• $y=x^2-2$

• $y=\left(x+2\right)^2$

• $y=\left(x-2\right)^2$

The equation of this graph could be

• $y=x^2+2$

• $y=x^2-2$

• $y=\left(x+2\right)^2$

• $y=\left(x-2\right)^2$

The equation of this graph could be

• $y=x^2$

• $y=x^3$

• $y=\frac{1}{x}$

• $y=2^x$

The equation of this graph could be

• $y=x^2$

• $y=x^3$

• $y=\frac{1}{x}$

• $y=2^x$

The equation of this graph could be

• $y=x^2$

• $y=x^3$

• $y=\frac{1}{x}$

• $y=2^x$