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Talja [164]
2 years ago
14

What is the answer to 6/8 - 3/4?

Mathematics
1 answer:
Bumek [7]2 years ago
8 0

Answer:

0

Step-by-step explanation:

For common denominator,

6/8 - 3/4 = 6/8 - (3*2)/(4*2) = 6/8 - 6/8 = 0

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Suppose the speeds of vehicles traveling on a highway are normally distributed and have a known population standard deviation of
erik [133]

Answer:

2.88

Step-by-step explanation:

Data provided in the question

\sigma = Population standard deviation = 7 miles per hour

Random sample = n = 32 vehicles

Sample mean = \bar X = 64 miles per hour

98% confidence level

Now based on the above information, the alpha is

= 1 - confidence level

= 1 - 0.98

= 0.02

For \alpha_1_2 = 0.01

Z \alpha_1_2 = 2.326

Now the margin of error is

= Z \alpha_1_2 \times \frac{\sigma}{\sqrt{n}}

= 2.326 \times \frac{7}{\sqrt{32}}

= 2.88

hence, the margin of error is 2.88

5 0
3 years ago
What is the equation in slope-intercept form of a line that is parallel to y=2x+5 and passes through the point (2, 8)?
trapecia [35]

Answer:

Step-by-step explanation:

y - 8 = 2(x - 2)

y - 8 = 2x - 4

y = 2x + 4

5 0
3 years ago
Read 2 more answers
What is 5x − 4 = 3x + 6
ioda

Answer:

The answer is 5

Step-by-step explanation:

6 0
2 years ago
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What's the slope of a line containing the points below? (-2, 6) (3, 10)
LenKa [72]
The slope of points (-2,6) and (3,10) is m= 0.8
8 0
3 years ago
N six years, john will be four times as old as mary is right now. right now, john is twice as old as mary. how old is john
Temka [501]
John is 6 years old and mary is 3. 
4 0
3 years ago
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