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noname [10]
2 years ago
8

This is due in 15 minutes so I need it asap ​

Mathematics
1 answer:
ser-zykov [4K]2 years ago
4 0

Answer:

B and C

Step-by-step explanation:

56 - ( {3}^{3}  + 13) = 16

For A

\frac{92 - (12 + 16)}{4}  = 16 \\

For B

{6}^{2}  \div 4 + 5 = 14

For C

(6 \times 7) + 3 + 2 = 47

For D

19 \times 4 -  {8}^{2}  + 4 = 16

Here, B and C have not same value

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A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 402 gram setting. It is
lidiya [134]

Answer:

The value of t test statistics is -2.25.

Step-by-step explanation:

We are given that a manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 402 gram setting. It is believed that the machine is under filling the bags.

A 25 bag sample had a mean of 393 grams with a standard deviation of 20.

<u><em>Let </em></u>\mu<u><em> = mean filling of bags by the machine.</em></u>

So, Null Hypothesis, H_0 : \mu \geq 402 gram     {means that the the machine is not under filling the bags}

Alternate Hypothesis, H_A : \mu < 402 gram     {means that the the machine is under filling the bags}

The test statistics that would be used here <u>One-sample t test statistics</u> as we don't know about the population standard deviation;

                       T.S. =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean bag filling = 393 grams

            s = sample standard deviation = 20 grams

            n = sample of bags = 25

So, <u><em>test statistics</em></u>  =  \frac{393-402}{\frac{20}{\sqrt{25} } }  ~ t_2_4

                               =  -2.25

The value of t test statistics is -2.25.

5 0
3 years ago
(ignore thisssssssssssss)
den301095 [7]

Answer:

ok

Step-by-step explanation:

8 0
3 years ago
2. You (or your parents) are purchasing a used car. Which interest rate do you use?
Svetlanka [38]

Answer:

New secured 4.50% is the best option.

4 0
2 years ago
Which is the most accurate way to estimate 49% of 45?
Arlecino [84]
1/2 x 44 is the correct answer. Since the answer to the main equation is 22.05, the closest answer to it is 1/2 x 44 which is 22.
3 0
3 years ago
Rewrite without parentheses and simplify (y-5)^2
QveST [7]
Answer:

y^2 - 10y + 25

Step-by-step explanation:

(y - 5)^2 =

(y - 5) • (y - 5)

Multiply y times y

y^2

Add 5 and 5

10

Multiply 5 and 5

25

Add these terms together

y^2 - 10y + 25

6 0
3 years ago
Read 2 more answers
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