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Troyanec [42]
2 years ago
6

4+x=12 substitute 8 for x =

Mathematics
1 answer:
Effectus [21]2 years ago
6 0

Answer:hope you can see pic

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PLEASE HURRYYYYYYYYYY!!!!!!!!<br><br><br> In OD, AB = CB and marc CE - 52. Find mZBCE. (See picture)
frozen [14]

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>

3 0
2 years ago
I'm stuck on question 6 + (-20.5)
astraxan [27]

Answer:

-14.5

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Santiago collects 435 cents in nickels.how many nickels does he collect?
Marianna [84]
He has 87 nickels (divide 435 by 5).
7 0
3 years ago
Solve for x<br> 3.24x + 8.37x -8.09=7.83<br> X= <br> Round your answer to the nearest hundredth
amm1812

3.24x + 8.37x -8.09=7.83

adding 3.24 x and 8.37x on the right side:

3.24x + 8.37x -8.09=7.83

11.61x -8.09=7.83

adding 8.09 to both sides:

11.61x =7.83+8.09

11.61x =7.83+8.09

11.61x =15.92

dividing both sides by 11.61

Answer : x=1.37

4 0
3 years ago
How is the water molecule different from the oxygen and hydrogen molecules
klemol [59]
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>
4 0
3 years ago
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