Answer:
A. 109
Step-by-step explanation:
We know that since AB = CB, then ΔABC is isosceles.
Since AC, one of the sides of ΔABC, is on the diameter of circle D, by definition, we know that ΔABC is also a right triangle. Thus, if ΔABC is an isosceles right triangle, then ∠BAC = ∠BCA = 45°.
Draw a line connecting D to B so that we now have isosceles triangle BDC. Since arc BC is 52°, by definition of central angles, ∠BDC is also equal to 52°. Then, ∠DBC = ∠DCB = (180 - 52)/2 = 64°.
∠BCE = ∠DCB + ∠BCA
∠BCE = 64 + 45 = 109°
The answer is thus A.
<em>~ an aesthetics lover</em>
Answer:
-14.5
Step-by-step explanation:
He has 87 nickels (divide 435 by 5).
adding 3.24 x and 8.37x on the right side:
adding 8.09 to both sides:
dividing both sides by 11.61
Answer : x=1.37
In a water molecule<span>, the </span>oxygen<span> atom and </span>hydrogen<span> atoms share electrons in covalent bonds, but the sharing isn't equal. ... The unequal sharing of electrons gives the </span>water molecule<span> a little bit of a negative charge near its </span>oxygen<span> atom and a slight positive charge near its </span>hydrogen<span> atoms.</span>
