Question

question 2 (finding area using triangles and rectangles mc) worth 5 points. what is the area of a right triangle with a height of 16 - 3/4 meters and a base of 45 meters? options: 376 - 7/8 m², 753 - 3/4 m², 61 - 3/4 m², 123 - 1/2 m². question 3 (plotting ordered pairs mc) worth 5 points. the point (8, - 15) was reflected over an axis to (-8, - 15). which axis was it reflected over? explain. options: x - axis, because the y - coordinate is the opposite; x - axis, because the x - coordinate is the opposite; y - axis, because the y - coordinate is the opposite; y - axis, because the x - coordinate is the opposite.

Explanation:

Pregunta 2:

Utilizar fórmula área triángulo $A=\frac{1}{2}\times base\times altura$.
$A = \frac{1}{2}\times45\times16\frac{3}{4}=\frac{1}{2}\times45\times\frac{67}{4}=\frac{45\times67}{8}=\frac{3015}{8}=376\frac{7}{8}\text{ m}^2$.

Pregunta 3:

El punto $(8, - 15)$ se refleja a $(-8,-15)$. Cambia el signo de la coordenada $x$, por lo que es el eje - x.

Answer:

Question 2: D. $\frac{376\frac{7}{8}}{}\text{ m}^2$
Question 3: B. x - axis, because the x - coordinate is the opposite