31 and 81 are in the bottom corners of the triangle X is at the top . What is X?
1 answer:
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Answer:
b. the area to the right of 2
Step-by-step explanation:
Problems of normally distributed samples are solved using the z-score formula.
In a set with mean and standard deviation
, the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X, which is also the area to the left of Z. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X, which is the area to the right of Z.
In this problem:
Percentage who did better:
P(Z > 2), which is the area to the right of 2.
The value of 15.0 N in pounds = 3.375 lb
<h3><em>Further explanation </em></h3>
The derivative magnitude is a quantity derived from the principal amount
7 main quantities have been determined based on international standards, namely:
- 1. Length, meters (m)
- 2. Time, second (s)
- 3. Mass, kilograms (kg)
- 4. Temperature, kelvin (K)
- 5. Light intensity, candela (cd)
- 6. Electric current, ampere (A)
- 7. Amount of substance, mol (m)
Newton (N) is one unit of force (F) which is a quantity derived from mass (m), length (l) and time (s)
Newton can be expressed in terms of Kg m / s²
Formula used:
F = m. a
N = kg. m / s²
In the British system there are units of slug, feet, and pounds so that the unit of force becomes:
F = m. a
Lb = slug. ft / s²
The relationship between the two-unit systems above is:
1 kg = 0.0685 slug
1 slug = 14.59 kg
1 newton = 0.225 lb
1 lb = 4,448 newtons
1 ft = 0.3048 m
So if we change 15 N to lb by using slug and ft
15 N = 15 * (1 / 14.59) slug * (1 / 0.3048) ft / s²
15 N = 3,375 slug ft / s ²
15 N = 3,375 lb
or we convert directly:
15 N = 15 * 0.225 lb
15 N = 3,375 lb
<h3><em>Learn more </em></h3>
yard conversion
the quantity 0.0075 meters expressed in centimeters
A vineyard has 145 acres of Chardonnay grapes
Keywords: slug, Newton, feet, kg, pound
