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3 years ago

What is this in simplest form?

Mathematics

2 answers:

const2013 [10]3 years ago

7 0

The answer to this problem is -14a^5c^9

alexira [117]3 years ago

6 0

Simplest form is when you turn a number in half until it’s the least value as you can get. For example 10 it’s simplest form is 5. And 2 it’s simplest form is 1

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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

4 0

3 years ago

If A ⊂ B, then which of the following describes the relationship between A and B?

Ne4ueva [31]

Could you provide the answer choices please?

6 0

3 years ago

Normal body temperature is 98.6°F. Ellen's temperature is 100.8°F. How many degrees above

SashulF [63]

Answer:2.2

Step-by-step explanation:100.8-98.6=2.2

5 0

3 years ago

What is the value of the expression 8^−2 ?

muminat

_Brainliest if helped!

1 over 64

8^2 = 64 , 8^-2 = 1/(8^2) = 1/64

7 0

3 years ago

PLEASE I NEED HELP!!!!!!!!

Yanka [14]

Answer:

1) x= 3i, x= - 3i

2) x= +i $\sqrt{7}$ , x = - i

Step-by-step explanation:

1) x^2+9=0

(x+3i)(x-3i)=0

x= 3i, x=-3i

2) x^2-4=-11

x^2=-7

x= ±i $\sqrt{7}$

x= +i $\sqrt{7}$ , x = - i

hope this helps!! :))

7 0

3 years ago