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2 years ago

Choose the equation of the horizontal line that passes through the point (2, 3).

Mathematics

1 answer:

Marizza181 [45]2 years ago

5 0

The equation for the horizontal line is
y=3

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The quality control manager of a light bulb factory needs to estimate the average life of a large shipment of light bulbs. The p

eimsori [14]

Answer:

b) yes

The manufacturer has the right to state that the light bulbs last on average 400 hours

Step-by-step explanation:

Explanation:-

Given sample size 'n' = 64

Given standard deviation of the Population (σ)=100

Mean of the sample (x⁻) = 350 hours

95% of confidence interval is determined by

$(x^{-} -Z_{0.95} \frac{S.D}{\sqrt{n} } , x^{-} +Z_{0.95} \frac{S.D}{\sqrt{n} } )$

( $(350 -1.96 \frac{100}{\sqrt{64} } , 350+1.96\frac{100}{\sqrt{64} } )$

(350-24.5 , 350+24.5)

(325.5 , 374.5)

Conclusion:-

Yes

The manufacturer has the right to state that the light bulbs last on average 400 hours

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3 years ago

amal is 167 cm tall. Which expression finds Jamal’s height in dekameters? Use the metric table to help answer the question.

LuckyWell [14K]

0.167 every .1 per cm

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3 years ago

Read 2 more answers

KNOWLEDGE CHECK!!!ALEKKSSSS

Morgarella [4.7K]

Answer:

2,5

Step-by-step explanation:

Add three

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3 years ago

Uri wants to buy a sweatshirt that

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Answer:

Take 16.28 x 8%. You get $1.30 so add 16.28 to 1.30 to get 19.58

Step-by-step explanation:

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3 years ago

The larger of two number is 15 more than three times the smaller number if the sum of the two numbers is 63 find The numbers

Aleks [24]

The two numbers are 12 and 51.

<h3>EXPLANATION</h3>

To solve this, I did 63-15, to get 48.

I then divided this by 4, to get the first number, which is 12.

To find the second answer, I multiplied 12 by 3, which is 36, and then added the 15 back on, to get 51.

51 + 12 = 63

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3 years ago