Answer:
0.399
Step-by-step explanation:
The key to doing this problem properly lies in knowing and following order of operations rules.
Here we must perform mult. and div. before addition and subtr., but even before that we must do all work enclosed in parentheses first.
(22.8 × 10–3) is evaluated by doing the mult. first, and then subtracting 3:
(228-3) = 225
and
(5.7 × 10–6) is evaluated by doing the mult. first, then subtracting 6:
(570-6) = 564.
Finally, we divide 225 by 564, obtaining 0.399 (after rounding off to three decimal places).
Answer:
The correct answer is 24.
Step-by-step explanation:
Jose wants to have an average mean of 25 points per game in his 6 basket ball matches.
Total points Jose plans to achieve in 6 games is 25 × 6 = 150.
Points score by him in the first five matches are 28, 24, 26, 27 and 21.
Total points in 5 matches is 126.
Thus the points he need to score in his next game to have an average mean of 25 is given by 150 - 126 = 24.
the triangle formed by sides 10, 9 and 15 units can't be a right angled triangle, because they doesn't form the pythagorean triplet, that is the sum of squares of the smaller sides isn't equal to the square of largest side,
sum of squares of smaller sides
=》
![10 {}^{2} + 9 {}^{2}](https://tex.z-dn.net/?f=10%20%7B%7D%5E%7B2%7D%20%20%2B%209%20%7B%7D%5E%7B2%7D%20)
=》
![100 + 81](https://tex.z-dn.net/?f=100%20%2B%2081)
=》
![181](https://tex.z-dn.net/?f=181)
now, square of largest side (hypotenuse)
=》
![{15}^{2}](https://tex.z-dn.net/?f=%20%7B15%7D%5E%7B2%7D%20)
=》
![225](https://tex.z-dn.net/?f=225)
they aren't equal, proved
Answer:
8 hr
Step-by-step explanation: