All categories

3 years ago

NEED HELP NOW 100 POINTS WILL MARK BRAINLIEST PLZ ANSWER ALL 5 PHOTOS BELOW!!!!!!

Mathematics

2 answers:

ira [324]3 years ago

8 0

The answers are as follows:
1-D
2-B
3-C
4-A

BabaBlast [244]3 years ago

5 0

39=a 40=c 41=a 42=b 43=a 44=d 45=c 46=a 47=d. I hope this helped!

You might be interested in

Which of the following ordered pair are equal. a) (6,2) and (2,6)

Gwar [14]

First one because thats simple

4 0

2 years ago

X is ........... variable | Maths Questions

makvit [3.9K]

Answer:

B. Independent

Step-by-step explanation:

Hope this helps

8 0

2 years ago

Read 2 more answers

The distance from the center of a compact disc to the edge of the disc is 6 centimeters. What is the area of the compact disc? A

PSYCHO15rus [73]

The Correct Answer Is B.36 square centimeters
Hope this helps

4 0

3 years ago

For questions 1- 3 find the exact sum or difference.

7nadin3 [17]

D, Because 7/15 + 9/15 is 16/15 + 4/15 =20/15 which equals 1 5/15 which turns into 1 1/3
A, 1/21 + 2/21 = 3/21 and that equals 1/7

C, 3/14+3/12 turns into 3/14+5/14= 10/14 - 8/14= 2/14=1/7

6 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