The surface area of a sphere of radius r is A = 4π*r^3.
Since the radius in this case is 8 cm (half the 17 cm diameter), the area of this sphere is
A = 4π(8 cm)^2, or 256π cm^2.
Answer:
4a. 15 wear braces
b. 20%
5a. 140 children - 400 - 120 = 280 ... 280/2=140
b. 35%
6a. Bob got $22.50. $45 / 2 = $22.50
b. $45 - $90 / 2 = $45
Step-by-step explanation:
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Answer:
B. %
Step-by-step explanation:
Percentage = %
Yes,according to the law of Detachment
Step-by-step explanation:
According to the law of detachment, in mathematical logic two statements are true;
a) If p then q
b)p
The we can derive a third statement q
Given: If the power has been cut, then the refrigerator does not work
Let p be the statement 'the power has been cut' and q be the statement 'the refrigerator does not work' the the two statements can be written as
1) If p the q
2) p
we can conclude that q is true, the refrigerator does not work.
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Law of Detachment : brainly.com/question/11132358
Keyword: Law of Detachment
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