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Igoryamba
3 years ago
9

What is the approximate solution to the equation 2t=38 ? 0.1906 3.6380 5.2479 19.0000

Mathematics
2 answers:
luda_lava [24]3 years ago
8 0

Answer:

The answer is 19.0000. 38 divided by two = t. (19)

Step-by-step explanation:


Tom [10]3 years ago
3 0

Answer:

just took the test     correct answer is  5.2479

Step-by-step explanation:

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If 9 cubic blocks with a side length of 13 inch are needed to find the volume of a cube, what is the volume of the cube?
Andrews [41]
Well for a cube V= a3 so you would do a x a x a and since it is a cube all sides are equal so you would multiply 13 x 13 x 13 which equals 2,197
7 0
4 years ago
Add.
baherus [9]
58+28=86.
8+8=16
5+2=7
take the 1 from 16 and add it onto the 7
1+7=8: thats the tens place.
Now we only have 6. So thats the ones place. Combine the two numbers and you get 86.
7 0
3 years ago
You are testing 0:=100 against :<100 based on an SRS of 24 observations from a normal population. The data gives ¯=9 and =2.4
bekas [8.4K]

Answer:

-185.75297

Step-by-step explanation:

Solution:-

- We are testing whether the population mean u is equal to 100 as per claim.

                Null hypothesis: u = 100

- Where a alternate hypothesis suggest that the population mean ( u ) may be lower:

               Alternate hypothesis: u < 100

- We are given sample data parameters which are assumed to be normally distributed:

              sample mean, x_bar = 9

              sample standard deviation, s = 2.4

- A sample of n = 24 observation was taken from a population of ( N ) with unknown population standard deviation ( σ ).

- The conditions of standard normal distribution are no longer applicable i.e:

                 

              n = 24 < 30

              unknown population standard deviation ( σ )

- We will model the sample using t-distribution with ( n - 1 ) = 23 degrees of freedom.

- The t-statistics of the sample mean x_bar can be determined from standard t-distribution:

                 

                 t-test = \sqrt{n}* \frac{x_b_a_r - u}{s} \\\\t-test = \sqrt{24}* \frac{9 - 100}{2.4} \\\\t-test = -185.75297

- The t-test value for mean ( u ) is -185.75297

                         

                 

5 0
4 years ago
Andrea had 32 problems to do for mathematics homework over the weekend. She did 1/4 of the problems on Friday night, and on Satu
igor_vitrenko [27]

Answer:

24

Step-by-step explanation:

            Problems at start =                 32

   -Problems done Friday = ¼ × 32 =  <u>  8</u>

Problems still to be done =                 24

Andrea had to do 24 problems on Saturday to complete the homework.

6 0
3 years ago
Joan Arlington has twice as much money invested at 5% simple annual interest as she does at 4%. if her yearly income from the tw
Vesnalui [34]
<span>Let the amount invested at 4% be $100X

THEN , the amount invested at 5% WILL BE $200X

Interest earned = 4X + 10X = 266

14X = 266

X = 19 </span>
4 0
4 years ago
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