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3 years ago

HELP PLEASE I'VE BEEN ASKING QUESTIONS FOR ALMOST WEEKS AN NO ONE HAS ANSWERED!!!

Mathematics

1 answer:

liberstina [14]3 years ago

6 0

Answer:

this is my old account and these still dont have answers

Step-by-step explanation:

You might be interested in

Pls help em i dont get this- 4 is 16% of?

anyanavicka [17]

Answer: 25

Step-by-step explanation:

You take 100/16 and get 6.25. Then you just multiply 4 by 6.25 to get 25

7 0

3 years ago

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

What is the volume of this rectangular prism?

s344n2d4d5 [400]

Answer: 48 cubic units

Step-by-step explanation: length x width x height

8 x 2 x 3 which equals 48

6 0

3 years ago

BRAINLIEST ANSWER!!

Maksim231197 [3]

Answer:

1. 30(8.75) + 11t = 400

2. 12.5 hours

Step-by-step explanation:

1. What is given is you work for 30 hours per week at a gas station for $8.75 an hour. You also work as a landscaper for $11 an hour. You want to a make a total of $400 per week.

30 hours and $8.75 an hour would be equivalent to 30(8.75)

We don’t know how many hours you work as a landscaper but you earn $11 an hour, which is equivalent to 11t

Finally, you want to earn a total of $400 a week, which means the sum equals 400

30(8.75) + 11t = 400

2. 30(8.75) = 262.5

400 - 262.5 = 137.5

137.5 / 11 = 12.5

7 0

3 years ago

Read 2 more answers

Write 0.423 as a percent

Oliga [24]

If you would like to write 0.423 as a percent, you can calculate this using the following step:

0.423 * 100% = 42.3%

The correct result would be 42.3%.

8 0

3 years ago

Read 2 more answers