Given that x2 + y2 + k = 60 and x = \(\sqrt{10}\) when y = 4, find the value of k.
56
34
32
-34
-56
Correct answer is B
x\(^2\) + y\(^2\) + k = 60
(√10)\(^2\) + (4)\(^2\) + k = 60
k + 10 + 16 = 60
k = 60 - 26
k = 34
225
216
143
140
Correct answer is A
No explanation has been provided for this answer.
7cm
22cm
28cm
49cm
154cm
Correct answer is C
No explanation has been provided for this answer.
271.5cm2
135.8cm2
96.0cm2
48.0cm2
33.9cm2
Correct answer is E
No explanation has been provided for this answer.
Find the mean deviation of 20, 25, 21, 27, 28, 29, to the nearest whole number
2
3
4
5
6
Correct answer is B
No explanation has been provided for this answer.