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Iteru [2.4K]
2 years ago
5

Factor completely. 75u^3- 12u --

Mathematics
2 answers:
mart [117]2 years ago
8 0
3u (5u + 2) (5u - 2)
Serhud [2]2 years ago
5 0

Answer:

(3u) (5u + 2) (5u - 2)

Step-by-step explanation:

75u³ - 12u

3u (25u² - 4)

3u (5u + 2) (5u - 2)

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The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. Th
Mila [183]

Answer:

The calculated t-value is t=0.47.

Step-by-step explanation:

<em>The question is incomplete:</em>

<em>"Americans typically eat quickly and do not spend time enjoying their meal. A researcher plans to test if those trained in mindfulness will take more time to enjoy their meal (that is, they will spend more time eating than the general population). The general population spends an average of 68 minutes per day combined eating their three meals. The researcher trains a sample of 16 individuals in mindfulness and then collects data on how long they spend eating per day. The sample mean for those trained in mindfulness equals 74; the SS = 150. What is the calculated t-value? Round your answer to two decimal places."</em>

The degrees of freedom are (n-1)=(16-1)=15

The standard deviation is:

s=\sqrt{\frac{SS}{n-1}}=\sqrt{\frac{150}{16-1}}=\sqrt{10}=3.16

The t-value can be calculated as:

t=\frac{M-\mu}{\sigma/\sqrt{n}} =\frac{74-68}{3.16/\sqrt{16}} \\\\t=\frac{6}{3.16*4}=\frac{6}{12.64}= 0.47

4 0
2 years ago
Evaluate 2^−1 + 2^−1.
Diano4ka-milaya [45]

Answer:

1

Step-by-step explanation:

2^−1 + 2^−1

2x2^-1

1

4 0
3 years ago
Math (2) Help please
eduard
What am i supposed to help with, can you show me?

8 0
3 years ago
WILL GIVE BRAINLIEST
ad-work [718]
The correct answer would be 1in, if you want to check and see if im right use a 12 inch ruler and check

 hope this helps out.
4 0
3 years ago
Read 2 more answers
Math help please right now!!!!
Karolina [17]

Answer:

The second answer is correct.

Step-by-step explanation:

8 0
1 year ago
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