Answer: X-7
Step-by-step explanation:
I put it into Tiger Algebra Calculator and that is what I got. Great tool btw I would recommend.
Answer:
40x² + 240x + 200
Step-by-step explanation:
(10x + 10) (4x + 20) = 40x² + 240x + 200
To solve this problem, you should know what is the not recovered waste for each item. To solve this, you should deduct the waste recovered from waste generated.
So for paper, the waste that is not recovered is 2.674 x 10^7.
While for glass, the not recovered waste is 0.840 x 10^7.
Lastly for plastics, the waste that is not recovered is 3.0554 x 10^7.
So by adding these three items, we can get now the total waste not recovered.
2.674 x 10^7 + 0.840 x 10^7 + 3.0554 x 10^7 = 6.5694 x 10^7.
Answer:
0.083
Step-by-step explanation:
To solve the above question, we use the combination method.
C(n, r) = nCr = n!/r!(n - r)!
Probability of answering (all 5 correctly)
= Probability of answering ( 5 out of 7 correctly)/ Probability of answering (5 out of 10 problems)
Probability of answering ( 5 out of 7 correctly) = 7C5
nCr = n!/r!(n - r)!
= 7!/5! (7 - 5)!
= 7 × 6 × 5 × 4 × 3 × 2 × 1/( 5 × 4 × 3 × 2 × 1) × (2 × 1)
= 21 ways
Probability of answering (5 out of 10 problems) = 10C5
nCr = n!/r!(n - r)!
= 10!/5! (10 - 5)!
= 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1/( 5 × 4 × 3 × 2 × 1) × (5 × 4 × 3 × 2 × 1)
= 252 ways
Probability of answering (all 5 correctly)
= 21/252
= 0.0833333333
Approximately = 0.083
