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Kobotan [32]
3 years ago
14

Help me with this question very difficult! !!!

Mathematics
1 answer:
WINSTONCH [101]3 years ago
8 0
240 × \frac{1}{12}
Probability:
20 times
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What is the sum of all of the perfect squares between
Nonamiya [84]

Answer:

(-138) is the answer.

Step-by-step explanation:

Perfect square numbers between 15 and 25 inclusive are 16 and 25.

Sum of perfect square numbers 16 and 25 = 16 + 25 = 41

Sum of the remaining numbers between 15 and 25 inclusive means sum of the numbers from 17 to 24 plus 15.

Since sum of an arithmetic progression is defined by the expression

S_{n}=\frac{n}{2}[2a+(n-1)d]

Where n = number of terms

a = first term of the sequence

d = common difference

S_{8}=\frac{8}{2} [2\times 17+(8-1)\times 1]

   = 4(34 + 7)

   = 164

Sum of 15 + S_{8} = 15 + 164 = 179

Now the difference between 41 and sum of perfect squares between 15 and 25 inclusive = 41-179

= -138

Therefore, answer is (-138).

7 0
2 years ago
I need help plz help me !!
elena-14-01-66 [18.8K]

Answer:

110

Step-by-step explanation:

y = 11/6x where x is in minutes

there are 60 minutes in an hour

plug in 60 as x

11/6 *60 = 11*10 = 110

6 0
3 years ago
Read 2 more answers
Under what conditions can a lender repossess a vehicle?
schepotkina [342]
<span>        </span>    

If you fail to make your car payments or otherwise default on your loan, you risk having your car repossessed by your lender.  Read on to learn more about how car repossessions work, how to avoid them, and what your options are if your car gets repossessed.<span>
</span>

5 0
3 years ago
HELP ME FOR BRAINETEST
Eddi Din [679]

Answer:

1 7/8

Step-by-step explanation:

The answer is 1 7/8.

7 0
3 years ago
A local​ eat-in pizza restaurant wants to investigate the possibility of starting to deliver pizzas. The owner of the store has
Mamont248 [21]

Answer:

Step-by-step explanation:

The owner of the store has determined that home delivery will be successful if the average time spent on the deliveries does not exceed 34 minutes. This is the null hypothesis. It is written as

H0 : µ ≤ 34

The alternative hypothesis would be

Ha : µ > 34

This is a right tailed test because of the greater then symbol in the alternative hypothesis. Since the p value for the test was found to be 0.0281281, if we use a significant level of 0.05, then the conclusion would be

Reject the null hypothesis. Therefore, At a 5% level of significance, the sample data showed significant evidence that the average time spent on the deliveries does exceed 34 minutes.

4 0
3 years ago
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