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shtirl [24]
2 years ago
9

What is the equation of the line whose y-intercept is 3 and slope is 1? y = x - 3 y = x 3 y = 3x 1

Mathematics
2 answers:
katrin [286]2 years ago
4 0
The equation is y=1x+3. The line equation is y=mx+b. m being the slope and the b being the y-intercept.
Lynna [10]2 years ago
4 0

Answer:

The answer is y=x+3

Step-by-step explanation:

An equation for a line which is not vertical can be written in the form

y=mx+b

where m is its  slope and b is its y-intercept.

So, if you replace m and b in the last equation by 1 and 3 respectively, you have the equation of the line:

y=1x +3

but, this is the same as

y=x+3

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Complete parts (a) and (b) using the probability distribution below.
katen-ka-za [31]
Μ = (0×0.026) + (1×0.072) +(2×0.152) + (3×0.303) + (4×0.215) + (5×0.164) + (6×0.066) 
μ = 0 + 0.072 + 0.304 + 0.909 + 0.86 + 0.82 + 0.396
μ = 3.361 ≈ 3.4

We need the value of ∑X² to work out the variance
∑X² = (0²×0.026) + (1²×0.072) + (2²×0.152) + (3²×0.303) + (4²×0.215) + (5²×0.164) + (6²×0.066)
∑X² = 0+0.072+0.608+2.727+3.44+4.1+2.376
∑X² = 13.323

Variance = ∑X² - μ²
Variance  = 13.323 - (3.4)² = 1.763 ≈ 2

Standard Deviation = √Variance = √1.8 = 1.3416... ≈ 1.4

The correct answer related to the value of mean and standard deviation is the option D
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An employee works an average of 3.4 overtime hours per week with a standard deviation of approximately 1.4 hours.</span>
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3 years ago
How to solve this problem
guapka [62]
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or

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James is taking a test to be on a game show to win money. He has to answer 75 questions or more correctly in 3 rounds in order t
Tresset [83]

Answer:

Yes; James got 76 answers correct

Step-by-step explanation:

Round 1: 50 x 0.8 = 40

Round 2: 40 x 0.75 = 30

Round 3: 30 x 0.2 = 6

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Answer:

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Step-by-step explanation:

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