Answer:
all work is pictured and shown
Looking at x^2 - x - 30, we see that 5*6=30, so we can immediately conclude that <span>x^2 - x - 30 = (x+5)(x-6). check this by multiplication.
</span><span>2m^2 - 2m - 60 can be reduced to 2(m^2 - m - 30), which in turn can be factored as 2(m+5)(m-6). The trick here is to notice how easily "2" can be factored out of the given equation.
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THE answer is 3.173≅3.2(nearest tenth)
Answer: 6 songs will be on the final CD.
Step-by-step explanation:
The number of songs that the band expected to put on their next CD is 12.
The band writes and records 25% more songs than they expect to put on the CD. This means that the additional number of songs that the band recorded is
25/100 × 12 = 0.25 × 12 = 3
Therefore, after writing and recording, the number of song was
12 + 3 = 15
During the editing process, 60% of the songs are removed. It means that the number of songs that were removed is
60/100 × 15 = 0.6 × 15 = 9
Therefore, the number of songs that will be on the final CD is
15 - 9 = 6
Answer: Estimated standard error for the sample mean difference would be 1.
Step-by-step explanation:
Since we have given that
Mean of MD = 4.90
So, Sum of difference would be
S = 288
n = 9
We need to find the standard error for the sample mean differences.
Estimated standard error for the sampled mean difference would be
Hence, estimated standard error for the sample mean difference would be 1.
