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PIT_PIT [208]
2 years ago
12

Please Help! Will Give Brainlest!

Mathematics
2 answers:
ella [17]2 years ago
8 0

Answer:

2

Step-by-step explanation:

amplitude = distance from undisturbed position/centre line to trough or peak

RUDIKE [14]2 years ago
4 0

Answer:

2

Step-by-step explanation:

amplitutde measures the height of the waves.

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Running times for 400 meters are Normally distributed for young men between 18 and 30 years of age with a mean of 93 seconds and
Luda [366]

Answer:

C. 45 and 141 seconds

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean = 93 seconds

Standard deviation = 16 seconds

99.7% of running times are approximately between:

By the Empirical rule, within 3 standard deviations of the mean, so between 3 standard deviations below the mean and 3 standard deviations above the mean

3 stnadard deviations below the mean

93 - 3*16 = 45 seconds

3 standard deviations above the mean

93 + 3*16 = 141 seconds

The correct answer is:

C. 45 and 141 seconds

3 0
3 years ago
Laurie bought 4 yards of brown braid trim, 7 yards of black lace, and 13 yards of gold ribbon. She paid $2.40 for each yard of r
Elza [17]

Answer:

24 yards, $77.40

Step-by-step explanation:

1) brown braid : 4*2.40 = $16.80

black lace : 7*2.40 = $29.40

gold ribbon : 13*2.40 = $31.20

2) 4 + 7 + 13 = 24 yards <

3) 16.80 + 29.40 + 31.20 = $77.40 <

4 0
3 years ago
Composition of functions
astra-53 [7]
For example, in the composition of(f g)(x) = f(g(x)), we need to replace each x found in f(x), the outside function, with g(x), the inside function. Step 3: Simplify the answer. Examples – Now let's use the steps shown above to work through some examples. Example 1: If f(x) = –4x + 9 and g(x) = 2x – 7, find(f g)(x).
7 0
3 years ago
‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️‼️PLEASE PLEASE HELP I HAVE BEEN WAITING FOR OVER AN HOUR
Gnoma [55]
I cant see the screen clearly
6 0
3 years ago
You dont have to answer but I will give you brainliest
andrezito [222]

Answer:

thanks

Step-by-step explanation:

7 0
3 years ago
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