Answer:
100°
Step-by-step explanation:
the total of all angles around O on one side of AD is 180° (as that would represent a half-circle).
and the sum of the arc angles AB + BC + CD covers the whole 180°.
so, we have
180 = 55 + BC + 25
180 = 80 + BC
BC = 100°
Answer:
Equation B
Step-by-step explanation:
Equation B because:
it is 7x + 3
so for the first one, it's 7 + 3
the second one is 14 + 3
the third one is 21 + 3
the fourth one is 28 + 3
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Answer: x= 6/35
Explanation
Answer:
B. 
Step-by-step explanation:
Total surface area of the square pyramid
= 4 times the area of one triangle + Area of square
Answer:
In linear expresiion 3 is the coefficient
X will be the variable and -15 will be the constant term.
