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3 years ago

Omg please me this is literally so hard like I hate this please help and fast

Mathematics

1 answer:

ad-work [718]3 years ago

8 0

A is the correct answer for your question

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HELPP ASAP!!<br> WHats the area?

Ira Lisetskai [31]

the answer should be 24 because you can divide it into 2 shapes and solve them separately and add those products

3 0

3 years ago

The life in hours of a 75-watt light bulb is known to be normally distributed with standard deviation σ = 25 hours. A random sam

irina [24]

Answer: a) (1008.34,1019.658) b) (1009.24,1018.76)

Step-by-step explanation:

Since we have given that

n = 75

mean = 1014 hours

Standard deviation = 25 hours

At 95% two sided , z = 1.96

So, confidence interval would be

$\bar{x}\pm z\dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.96\dfrac{25}{\sqrt{75}}\\\\=1014\pm 5.658\\\\=(1014-5.658,1014+5.658)\\\\=(1008.34,1019.658)$

(b) Construct a 95% lower confidence bound on the mean life.

z = 1.65

So, confidence interval would be

$\bar{x}\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=1014\pm 1.65\times \dfrac{25}{\sqrt{75}}\\\\=1014\pm 4.76\\\\=(1014-4.76,1014+4.76)\\\\=(1009.24,1018.76)$

Hence, a) (1008.34,1019.658) b) (1009.24,1018.76)

4 0

4 years ago

What is 97,079 rounded to the nearest ten thousand

Kazeer [188]

Answer:

97000

Step-by-step explanation:

look the the left of the column asked for. if it's 0-4 it stays the same but if it's 5-9 it goes up on. e.g if the number was 97508 it would go to 98000

8 0

3 years ago

Read 2 more answers

Is it possible to prove DOG is con to GED?

blagie [28]

Answer:

Yes

Step-by-step explanation:

The angles are identical, so they are congruent.

Hope I helped! Plz leave a comment and a rating!

8 0

3 years ago

A deer can run for 2 hours at the speed of 45 mph how far can It run in that time

Virty [35]

Answer:

90 mph

Step-by-step explanation:

if it can go 45 mph, in 2 hrs, it should go 90

45*2=90

7 0

3 years ago

Read 2 more answers