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allsm [11]
3 years ago
13

The equation f(x) = 2x²-x+ 4 has roots a and B.

Mathematics
1 answer:
AleksandrR [38]3 years ago
8 0

Answer:

(a-1)²(b-1)²=a²b²+a²-b²+1²=(ab)²+(a-b)²+ 1

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The diameters of ball bearings are distributed normally. The mean diameter is 130 millimeters and the variance is 9. Find the pr
Crank

Answer:

0.0478

Step-by-step explanation:

We solve using z score formula

z = (x-μ)/σ, where

x is the raw score = 135 mm

μ is the population mean = 130 mm

σ is the population standard deviation.

We are given variance = 9

Standard deviation = √variance = √9 = 3

Hence

z = 135 - 130/3

z = 1.66667

Probability value from Z-Table:

P(x<135) = 0.95221

P(x>135) = 1 - P(x<135) = 0.04779

Approximately to 4decimal places = 0.0478

8 0
3 years ago
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Answer:

Step-by-step explanation:

Most road bikes and touring bikes have thinner tires, while mountain bikes have big fat tires. ... A firm thin tire on the asphalt surface won't flatten much. The less the tire flattens out on the bottom, the less surface area is in contact with the road. Less contact in this case means less friction, and more speed.

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3 years ago
The answer is C, why does the m2g have to go in the front?
Svetradugi [14.3K]
The answer would be c but why u have d
5 0
4 years ago
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Samuel's sister is 39. She is 6 years older than Samuel's age tripled. How old is Samuel?​
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Answer:

11

Step-by-step explanation:

39-6=33

33/3=11

4 0
3 years ago
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Answer:

See the attachment

Step-by-step explanation:

Hope this helps :)

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