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2 years ago

Can you please help me with this question

Mathematics

1 answer:

Gekata [30.6K]2 years ago

5 0

Answer:

1. A $28.18

2. D -$4.16

Good luck!

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Walmart is having a huge 25 % off sale!!!

IRISSAK [1]

9514 1404 393

Answer:

$400

Step-by-step explanation:

If the price after taking 25% off is $300, then $300 is 75% of the original price.

$300 = 0.75p

$300/0.75 = p = $400

The original price was $400.

_____

<em>Check</em>

0.25 × $400 = $100

$400 -100 = $300 . . . . the price after taking 25% off

6 0

3 years ago

Read 2 more answers

Two different weight loss programs are being compared to determine their effectiveness. Ten men were assigned to each program (t

True [87]

Answer:

WE reject the Null and conclude that one of the drug is more effective than the other.

Step-by-step explanation:

Given :

Diet 1 3.4 10.9 2.8 7.8 0.9 5.2 2.5 10.5 7.1 7.5

Diet 2 11.9 13.1 11.6 6.8 6.8 8.8 12.5 8.6 17.5 10.3

This is a matched pair sample :

The hypothesis :

H0 : μd = 0

H1 : μd ≠ 0

Hence, we intun the difference between the two groups of value :

Difference, d = -8.9,-2.2,-8.8,1,-5.9,-3.6,-10,1.9,-10.4,-2.8

The test statistic :

dbar ÷ (Sd/√n)

dbar = mean of difference = Σd / n = - 49.7 / 10 = - 4.97

Standard deviation of difference, Sd = 4.51

Test statistic :

-4.97 ÷ (4.51/√10)

Test statistic = - 3.485

The sample size, n = 10

df = n - 1 ; 10 - 1 = 9

Critical value (0.10, 9) = 1.833

If Test statistic > |Critical value |

Since 3.486 > 1.833 ; WE reject the Null and conclude that one of the drug is more effective than the other

5 0

3 years ago

Find the base in the following problem.

Nina [5.8K]

You're answer is going to be C
325.81

Hope this helps

8 0

3 years ago

Read 2 more answers

A librarian has a set of ten different books, including four different books about Abraham Lincoln. The librarian wants to put t

Darya [45]

Answer:

120960

Step-by-step explanation:

Given that a librarian has a set of ten different books, including four different books about Abraham Lincoln.

The librarian wants to put the ten books on a shelf with the four Lincoln books next to each other, somewhere on the shelf among the other six different books.

First arrnage the 6 other books in the shelf.

This can be done in $6! ways$

Now arrange the 4 books of Lincoln

This can be done in $4! ways$

Now we have 7 places to insert Lincoln books including two corners and in between.

Thus this can be done in 7 ways

Total no of ways = $6!(4!)(7) = 120960$

3 0

3 years ago

The midpoint of ab is m(5-2). If the coordinates of a are (6,-5), what are the coordinates of b

Alex

The coordinate of B is (4,1)

7 0

2 years ago

Can you please help me with this question ​

Can you please help me with this question