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2 years ago

how many even numbers less than 1000 can be formed from the given digits 0,2,3,5; if repetition is not allowed ?

Mathematics

1 answer:

Lunna [17]2 years ago

8 0

Answer: 2 numbers

Step-by-step explanation:

Since we are looking for even numbers, 0 and 2 must be the last number.

So if we have 0 at the end, there are 6 possibilities:

2350, 2530, 3250, 3520, 5230, 5320. None of these are less than 1000.

But, if we have 2 at the end, then we have 6 possibilities again:

0352, 0532, 3052, 3502, 5032, 5302. Only two of these are less than 1000.

So the only possibilities are 0350 and 0530, and so there are 2 possibilities.

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In the town zoo, of the animals are birds. Of the

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Answer:

i think there was a typo bc u didnt put the number of zoo animals

Step-by-step explanation:

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3 years ago

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Please Help!

Alecsey [184]

The area that the dog can wander based on the information provided will be 931π.

<h3>How to calculate the area?</h3>

From the information, we are told that the dog dog is attached to a 35-foot rope fastened to the outside corner of a fenced-in garden that measures 28 feet by 36 feet.

In this case, the dog is in an outside corner. The dog can trace 3/4 of a circle when it starts walking in a circle away form the wall.

The area that the dog can wander will be:

= 3/4(π35²) + 1/4(π(35 - 28)²)

= 3/4π(35)² + 1/4π(7)²

= (3/4 × 1225)π + (1/4 × 49)π

= 918.75π + 12.25π

= 931π

Therefore, the area that the dog can wander based on the information provided will be 931π.

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brainly.com/question/25292087

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6 0

7 months ago

A cell phone company charges $4 per GB beyond 20GB in a month. The monthly plan is $59.99, and the bill for January is $75.99. H

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Answer:

24GB

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3 years ago

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Some researchers claim that herbal supplements (such as ginkgo biloba) can impact human memory. To test this claim, a researcher

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Answer:

(a) The data are not sufficient to demonstrate that the herb has a significant effect on memory.

(b) Cohen's d = 5.07

Step-by-step explanation:

(a) Null hypothesis: The herbal supplement (ginkgo biloba) can impact human memory

Alternate hypothesis: The herbal supplement (ginkgo biloba) cannot impact human memory.

Z = (sample mean - population mean) ÷ sd/√n

Sample mean = 76, population mean = 70, sd = 15, n = 25

Z = (76 - 70) ÷ 15/√25 = 6 ÷ 3 = 2

Using a 0.05 significance level for a two tailed test, the critical value is 1.96

For a two tailed test, the region of no rejection of the null hypothesis lies between -1.96 and 1.96

Conclusion: Since the test statistic (Z = 2) falls outside the region bounded by -1.96 and 1.96, reject the null hypothesis. The herbal supplement (ginkgo biloba) cannot impact human memory.

Hence, the data are not sufficient to demonstrate that the herb has a significant effect on memory.

(b) Cohen's d = M/sd = 76/15 = 5.07

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