Answer:
x = 109 degrees
Step-by-step explanation:
2x = 57 + 161
2x = 218
x = 109 degrees
Formula:
2 times the angle = arc1 + arc2
False. To find the decimal point while multiplying, count the number of decimal places (to the right of the decimal) in the factors. Then use the total of decimal places and move to the product. Start on the left side, and move the decimal over one number place for each decimal place.
Example: 3.77*2.8=?
3.77
* 2.8
----------
10556
But this is without the decimal point.
3.77 has two decimal places, and 2.8 has one. Put them together and you get a total of three decimal places.
10556, then, should have three decimal places.
Your answer would be 10.556
I hope this wasn't too confusing.
1. Subtract 6 from both sides now you would get..
2z=-10
Now divide each side by 2z and you get
z= -5
So the answer is -5
<u>Answer</u>
<span>(D) 14.2x0.784
<u>Explanation</u>
We do not have to multiply these number to tell the number of decimal places of the product.
The product of a set of number will have the sum of the decimal places of the factors. For example, in
</span>(A) 5.3478x6.4214 ⇒ 4+4= 8 decimal places
(B) 6.4x3.82 ⇒1+2= 3 decimal places<span>
(C) 521x3.82 </span>⇒ 0+2 = 2 decimal places. <span>
(D) 14.2x0.784</span> = 1+3= 4 decimal places.
the correct answer is (D) 14.2x0.784