Answer:
43
Step-by-step explanation:
we know that ABC and CBD need to add up to 90 so we have
47+CBD=90
CBD=43
Answer:
120
Step-by-step explanation:
<em><u>The formula for finding the volume of a prism is:</u></em>
V = Bh
<em><u>You have to convert 13 </u></em><em><u> into an improper fraction, like so:</u></em>
<em><u>Convert the other:</u></em>
<em><u /></em>
<em><u>Multiply:</u></em>
<em><u /></em> · =
<em><u>Convert to mixed fraction:</u></em>
120
"T is a subset of P"
Not true since triangle has three sides but parallelogram has four sides.
"E is a subset of I"
True since equilateral triangles are isosceles triangles with all angles equal.
"S is a subset of T"
True since scalene triangles are still triangle.
"I ⊂ E"
False since there are isosceles triangles those are not equilateral triangles. Namely triangle with angles 20°, 20°, 140°
"T ⊂ E"
False since not all triangles are equilateral. Scalene triangle is one of counterexamples.
"R ⊂ P"
True since rectangles are parallelograms with right angles.
Final answer: <span>E is a subset of I, </span>S is a subset of T, and R ⊂ P.
Hope this helps.