2 years ago

Which number line best models the expression 3 divided by 1/3?

Mathematics

1 answer:

e-lub [12.9K]2 years ago

7 0

Answer:

3 (divided by sign) 1/3

Step-by-step explanation:

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The lines graphed below are perpendicular. The slope of the red line is -2.

ASHA 777 [7]

Answer:

1/2

Step-by-step explanation:

opposite reciprocal

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2 years ago

A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours. To test this claim,

natka813 [3]

Answer: C. 12.5

Step-by-step explanation:

Given : A manufacturer of new light bulbs claims the average lifetime of its long-life bulb is more than 4000 hours.

Population mean : $\mu=4000$

Sample size : n= 100

Sample mean : $\overline[x}=4500$

Standard deviation: $s=400$

The value of test-statistic is given by :-

$z=\dfrac{\overline{x}-\mu}{\dfrac{s}{\sqrt{n}}}\\\\\Rightarrow\ z=\dfrac{4500-4000}{\dfrac{400}{\sqrt{100}}}\\\\\Rightarrow\ z= 12.5$

Hence, the value of the test statistic for this problem is 12.5.

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2 years ago

How to simplify a mixed number

Mumz [18]

Okay I will have an example for you. 3 and 2/7. STEP 1) multiply the denominator by the whole number. 3×7=21. STEP 2) add the numerator to 21. 21+2=23. STEP 3) 23 is the new numerator so put 23 over 7. FINAL SOLUTION 23/7.

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3 years ago

Wisdom scores n marks in a test. a. Antonio scores 2 marks less than wisdom. Write down an expression for Antonio's mark in term

jenyasd209 [6]

Wisdom’s score = n
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2 years ago

Plz help! will give 20 pnts

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A: 3√2 annnndddd B: 4.24

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