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Ganezh [65]
3 years ago
7

The 100-meter dash times in the girls track meet were normally distributed with a mean of 13 seconds and a standard deviation of

0.3 seconds. What is the probability that a runner finished between 12.4 and 14 seconds?
Mathematics
1 answer:
Svetllana [295]3 years ago
5 0

Answer:

97.68 %

z(lower) = .0227

z(upper) = .999

Step-by-step explanation:

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zalisa [80]

Answer:

44%

Step-by-step explanation:

.44 x 125 equals 55 n

7 0
2 years ago
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Please help, need to get this done quick!
Murljashka [212]

  our X is 30 because 3x = 90 and if we divide that by 3 then we are left with 30, I knew it was equal to 90 degrees because of the little red box that symbolizes a 90 degree angle.

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2(30) + 3y is equal to (60 + 3y) and if we equal that to the other side 3x and plug in for x on that side, we have a new equation of 90 = 60 + 3y so then from here we subtract 60 from both sides and are left with 30 = 3y and finally we divide 3

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2 years ago
Name the transformations of the next equation y=3(x+6) - 5
klemol [59]

Answer:

vertical stretch

Step-by-step explanation:

8 0
2 years ago
Anyone please, thanks
Mashcka [7]

Step-by-step explanation:

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5 0
3 years ago
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3. Determine the slope of the line that has the following coordinates: (-3, 6) (4,-2)
poizon [28]

Answer:

-8/7

Step-by-step explanation:

(-3, 6) & (4,-2)

To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values:

(-2 - 6) / (4 - (-3))

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= (-2 - 6) / (4 + 3)

= -8 / 7

Simplify the fraction.

= -8/7

This is your slope.

Hope this helps!

5 0
3 years ago
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