9514 1404 393
Answer:
150°
Step-by-step explanation:
The rule here is that the external angle is half the difference of the arcs subtended. That relation is used to form an equation, which can then be solved for whatever measure is of interest.
(RB -EC)/2 = D
((13x +7) -(60))/2 = (5x -10)
13x -53 = 10x -20 . . . . . . . . . . multiply by 2
3x = 33 . . . . . . . . . . . . . . add 53-10x to both sides
x = 11 . . . . . . . . . . . . divide by 3
RB = 13x +7 = 13·11 +7 = 150
The measure of arc RB is 150°.
It's 0.4825 time 100 equal 48.25
The answer is: [B]: " 49 " .
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Explanation:
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2.03 * 24 = 48.72 ; round to "2 significant digits" ==> 49 .
The answer is: [B]: 49 .
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This is assuming, of course, that "24" is not an "exact figure".
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1. x=<span><span><span>1/2</span>y</span>+<span><span>−1/</span><span>2
2. </span></span></span>x=<span><span><span>1/4</span>y</span>+<span>1/<span>4</span></span></span>
To find the average you add both of the numbers together and then divide by the number of numbers if that makes sense so 545 + 777 divided by 6 = 674.5