Answer:
$600 (ML), $200 (MW), $1,035 (total raised), $965 (need to raise needed)
Step-by-step explanation:
50 % 50/100 = 0.5
$1200 x 0.5 = $600 Mrs LeBlanc's class has raised
$600/3 = $200 Ms. Warner's class has raised (MW)
600 + 200 + 235.14 = $ 1,035 Has been raised
1,200 - 1,035 = $965 is the amount they still need to raise
Answer:
i cold not find the answer
Step-by-step explanation:
Answer: -1.51
Step-by-step explanation:
Let 
be the population mean rating of car.
As per given , we have
Since population variance is known, so we use z-test.
Test statistic : 
, where n= sample size
= Sample mean
= variance
As per given ,
n=300
Put these values in formula we get
Hence, the value of the test statistic is z= -1.51 .
Answer b looks correct to me
Answer:
12 + 8k² + k³ - 9k⁴
Step-by-step explanation:
(8 + k³ - 6k⁴) + (4 - 3k⁴ + 8k²)
8 + k³ - 6k⁴ + 4 - 3k⁴ + 8k²
(8 + 4) + (8k²) + (k³) + (-6k⁴ -3k⁴)
(12) + (8k²) + (k³) + (-9k⁴)
12 + 8k² + k³ - 9k⁴
