Answer: 3424.28
Step-by-step explanation:
Given data : 378, 361, 350, 375, 200, 391, 375, 368, 321
Number of data values = 9
Mean :
Variance =
Variance =
Answer:
Multiples [10] - 10, 20, 30, 40, 50
Multiples [11] - 11, 22, 33, 44, and 55
<u><em>Find the Even numbers of these multiples</em></u>
Multiples [10]
- - 10 = Even
- - 20 = Even
- - 30 = Not Even
- - 40 = Even
- - 50 = Not Even
- <u><em>10 × 1 = 10</em></u>
- <u><em>10 × 2 = 20</em></u>
- <u><em>10 × 3 = 30</em></u>
- <u><em>10 × 4 = 40</em></u>
- <u><em>10 × 5 = 50</em></u>
Multiples [11]
- - 11 = Not Even
- - 22 = Even
- - 33 = Not Even
- - 44 = Even
- - 55 = Not Even
- <u><em> 11 × 1 = 11</em></u>
- <u><em> 11 × 2 = 22</em></u>
- <u><em> 11 × 3 = 33</em></u>
- <u><em> 11 × 4 = 44</em></u>
- <u><em> 11 × 5 = 55</em></u>
- <u><em> 11 × 6 = 66</em></u>
- <u><em> 11 × 7 = 77</em></u>
- <u><em> 11 × 8 = 88</em></u>
- <u><em> 11 × 9 = 99</em></u>
Step-by-step explanation:
.... I messed up, sorry. I thought that 20 said 11
Q4, 4y²=60
y=√15 ( i am not sure)
q6, (5+y) ²=81
5+y=9
y=4
q7 (x+4) (x) =77
x²+4x-77=0
(x+11) (x-7) =0
x=-11(rej) or x=7
therefore ,length= 7+4=11cm
breadth=7cm