Answer:
16.2
Step-by-step explanation:
multiply 12.2 by 8.5 by 2 and 15.4 by 8.5 by 2 then add them together to get 207.4 plus 4035.6 which is 4513 then divide 4513 by 287.5 to get your answer
Your answer would be 70
10 divided by 3=3.33
3.33 times 21= 70
See the attached picture to better understand the problem
we know that
in rectangle ABCD
AB=CD
and
AD=BC
therefore
the triangle ACD and triangle ABC are congruent
so
BD=AC
BD=8 units
the answer part a) isBD= 8 unitsPart b) Find angle CBD
we know that
∠ABD+∠CBD=90°---------> by complementary angles
so
∠CBD=90-∠ABD-----> 90-67----> 23°
∠CBD=23°
the answer Part b) is∠CBD=23 degrees
Answer:
he studies his math for 15 hours
Step-by-step explanation: