2 years ago

Name a point that is not coplanar with R, S, and T.

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

7 0

Answer:

The points that are not coplaner are

w &q

w&R

w&t

w&s

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The net of a pyramid is shown below.

sveticcg [70]

Answer:

80 in^2

Step-by-step explanation:

8*4=32

32/2=16

16= One triangle

16*4 triangles=64

4*4=16

64+16=80

8 0

2 years ago

M(2,5) is the midpoint of RS. The coordinates of S are (3,9). What are the coordinates of R?

kobusy [5.1K]

$\bf ~~~~~~~~~~~~\textit{middle point of 2 points } \\\\ R(\stackrel{x_1}{x}~,~\stackrel{y_1}{y})\qquad S(\stackrel{x_2}{3}~,~\stackrel{y_2}{9}) \qquad \left(\cfrac{ x_2 + x_1}{2}~~~ ,~~~ \cfrac{ y_2 + y_1}{2} \right) \\\\\\ \left( \cfrac{3+x}{2}~~,~~\cfrac{9+y}{2} \right)~~=~~\stackrel{M}{(2~,~5)}\implies \begin{cases} \cfrac{3+x}{2}=2\\[1em] 3+x=4\\ \boxed{x = 1}\\ \cline{1-1} \cfrac{9+y}{2}=5\\[1em] 9+y=10\\ \boxed{y=1} \end{cases}$