2 years ago

Can someone help me with this math homework please!

Mathematics

1 answer:

UNO [17]2 years ago

7 0

The answer is either B or D, but I am pretty sure it is D

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Lakshmi donates 20% of her income to charity. What fraction of her income does Lakshmi donate to charity?

777dan777 [17]

1/5

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3 years ago

Express in seconds.<br><br> 30"<br> 45"<br> 50"

Rus_ich [418]

Answer:

45"

Step-by-step explanation:

(3/4 x 60 )"

=45"

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3 years ago

Izzy had an 82 and an 88 on his first two tests and believed that he did well enough on his final exam to keep his B average. H

Anastaziya [24]

Answer:

Step-by-step explanation:

to find the mean you need to add up all grades and divide if by the number of terms you added

(82 + 88 + x) ÷ 3 = 69 (since we don't know the third grade let's call it x)

170 + x = 69 × 3

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if the digits transposed the the actual grade would be 73

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3 years ago

The number of hours a lightbulb burns before failing varies from bulb to bulb. The population distribution of burnout times is s

liubo4ka [24]

ANSWER:

The average burnout time of a large number of bulbs has a sampling distribution that is close to Normal.

STEP-BY-STEP EXPLANATION:

The cental limit theorem states, that id the sample size is large (30 or more), then the sampling distribution of the sample means is approximately normal with mean ц and standar deviation б/ $\sqrt{n}$

Thus the correct answer is the average burnout time of a large number of bulbs has a sampling distribution that is close to Normal.

6 0

3 years ago

What is the correct answer?

FinnZ [79.3K]

Answer:

Step-by-step explanation:

dontkow

5 0

2 years ago