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Marina CMI [18]
3 years ago
5

What times 0.914 equals to 400?

Mathematics
1 answer:
Anastasy [175]3 years ago
8 0
437.636761 or 437.65 rounded 
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Tom has a can of paint that covers 37 1/2 m² each board on the fence has a area of 3/16 m² how many boards can he paint.
kramer

Step-by-step explanation:

37 and 1/2 divided by 3/16 =

75/2 divided by 3/16 =

75/2 * 16/3 =

25*8 = 200 <--- 75 cancels 3; 16 cancels 2

8 0
2 years ago
A sociologist wishes to test . the sociologist takes a sample of size 100 and calculates a standardized test statistic of -2.34.
mariarad [96]

Answer:

One-sample Z-test

Step-by-step explanation:

As the sample size is greater than 30, assuming the data is a simple random sample, and that the data has a normal distribution, the sociologist should conduct a one-sample z-test to calculate the p-value.

3 0
1 year ago
Fifty pro-football rookies were rated on a scale of 1 to 5, based on performance at a training camp as well as on past performan
son4ous [18]

Answer:

(a-1) 22 rookies receiving a rating of 4 or better.

(a-2) 14 rookies received a rating of 2 or worse.

(b-1) Constructed below in explanation.

(b-2) 8% of total rookies received a rating of 5.

Step-by-step explanation:

We are provided the rating of Fifty pro-football rookies on a scale of 1 to 5 based on performance at a training camp as well as on past performance.

The frequency distribution constructed is given below:

 Rating          Frequency

     1                       4

     2                     10       where ranking of 1 indicate a poor prospect whereas

     3                     14         ranking of 5 indicate an excellent prospect.

     4                     18

     5                      4

(a-1) Rookies receiving a rating of 4 or better = Rating of 4 + Rating of 5

       So, by seeing the frequency distribution 18 rookies received a rating of

         4 and 4 rookies received a rating of 5.

Hence, Rookies receiving a rating of 4 or better = 18 + 4 = 22 rookies.

(a-2) Number of rookies received a rating of 2 or worse = Rating of 2 +

                                                                                                 Rating of 1

     So, by seeing the frequency distribution 10 rookies received a rating of

      2 and 4 rookies received a rating of 1.

Hence, Rookies receiving a rating of 2 or worse = 10 + 4 = 14 rookies.

(b-1) Relative Frequency is calculated as = Each frequency value /

                                                                         Total Frequency

   Rating        Frequency(f)        Relative Frequency

     1                       4                          4 / 50 = 0.08

     2                     10                         10 / 50 = 0.2

     3                     14                          14 / 50 = 0.28

     4                     18                          18 / 50 = 0.36

     5                   <u>   4    </u>                       4 / 50  = 0.08

                     \sum f<u>= 50 </u>                

Hence, this is the required relative frequency distribution.

(b-2) To calculate what percent received a rating of 5 is given by equation :

            <em>  x% of 50 = 4 </em> {Here 4 because 4 rookies received rating of 5}

         x = \frac{4*100}{50} = 8% .

Therefore, 8% of total rookies received a rating of 5.

5 0
3 years ago
Which soap deal has the lowest price per ounce?
aleksklad [387]
It is D. look how it skipped oz
6 0
3 years ago
Read 2 more answers
2y = x + 3 5y = x - 7 What is the solution set of the given system?
pentagon [3]

Hi!

We need to find the value of x by isolating it on one side of one of the equations.

5y = x - 7

Add 7 to both sides.

5y + 7 = x - 7 + 7

5y + 7 = x

Now put the value of x in the other equation.

2y = 5y + 7 + 3

Simplify

2y = 5y + 10

Subtract 5y from both sides.

2y - 5y = 5y - 5y + 10

-3y = 10

Divide by -3 on both sides.

y = -10/3

Now put the value of y in the other original equation to solve for x!

5 * -10/3 = x - 7

-50/3 = x - 7

Add 7 to both sides.

-50/3 + 7 = x - 7 + 7

-29/3 = x

The answer is C.){(-29/3, -10/3)}

Hope this helps! :)

-Peredhel

3 0
3 years ago
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