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29.11.2019 •
Mathematics
Circle m has a radius of 7.0 cm. the shortest distance between p and q on the
circle is 7.3 cm. what is the approximate area of the shaded portion of circle m? explain : )
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Ответ:
C.
Step-by-step explanation:
Given: Circle M has a radius = 7.0 cm.
The shortest distance between P and Q on the circle (arc length)= 7.3 cm.
Now, the central angle 'x' is given by :-
Now, the area of sector is given by :-
Ответ:
8) If the base of the exponents match on both sides of the equal sign, then the exponents can be set equal to each other.
So since (5ˣ)⁵ = 5³⁵, the base 5 is on both sides.
5(x) = 35
5x = 35
Divide by 5 on both sides to isolate the variable.
x = 7
9) Without evaluating (much) you can tell by common sense that (2⁵)(10⁵) is bigger.
The exponents are the same so you can multiply the bases. 4x5 = 20. 2 x 10 = 20. Now, just look at the exponents to see which is bigger. 5 > 4. Therefore, (2⁵)(10⁵) is bigger.
10) Nicholas's second statement is false. (2⁶)(2⁶) is the same as (2⁶)². In this case since they have the same base, you would multiply the exponents. 6 x 2 = 12. Therefore, (2⁶)(2⁶) = 2¹²