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3 years ago

Which statement regarding the diagram is true?

Mathematics

2 answers:

Sergeu [11.5K]3 years ago

7 0

Answer

m∠WXY + m∠YXZ = 180°

elixir [45]3 years ago

5 0

Your answer is option C,

m∠WXY + m∠YXZ = 180°

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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:

The question is incomplete:

"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."

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

Austin earns $9.75 an hour at a part-time job, and earns $12 each time mowing lawns in the neighborhood. They graph the amount o

kaheart [24]

Answer:

$7.25 at part-time job

$9.00 every time lawn mowed

so he would get 33.33 day so we will just say 33 times to get 300 dollars if he gets $9 for mowing. And 41.37 hours to get $300 and he would have to use x and y graph to find the boundary line.

Step-by-step explanation:

4 0

2 years ago

You know that 15% of a number n is 12. How can you use this to find 30% of n? 45% of n? Explain.

Keith_Richards [23]

30% is 24
45% is 36
take 15% and multiply it by however much it takes to make the percentage than multiply that by 12

5 0

3 years ago

QUICK HELP. CLICK PHOTO WILL MARK BRAINLIEST!

m_a_m_a [10]

Answer:

1/64 is answer I think.

4 0

3 years ago

Misty correctly determined the equation of the linear function represented by the table of values below to be y = negative 2 x +

Fiesta28 [93]

Answer:

y = -2 x + 9

Step-by-step explanation:

you'll get the same equation because its linear.

7 0

3 years ago

Read 2 more answers