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\( y=\sinh (x) \)
Pre Calculus Feb 28, 2025
We measured the flat area of 30 apartments and we have measured the following values in \( m^{2} \) : \( 82.6,57.3,70.4,65,48.4,103.8,73.6,43.5,66.1,93,52.6,70,84.2,55,81.3,61.5,75.1,34.8 \), \( 62.4,116,70.1,63.6,93,59.2,65.9,77.2,52.8,68.7,79.2,87.4 \). a) Create a table of grouped frequency distribution for the number of classes \( k=9 \). b) Construct a histogram of relative frequencies of the flat areas. c) From the specified values estimate the sample mean and the variance. d) From the middle values of the intervals and from their frequencies estimate the sample mean and the variance.
Statistics Feb 28, 2025
6. What type of energy is stored in a stretched rubber band?
Physics Feb 28, 2025
5. What is the formula for Ohm's Law?
Physics Feb 28, 2025
3. What is the acceleration due to gravity on Earth, approximately?
Physics Feb 28, 2025
2. What is the SI unit of energy?
Physics Feb 28, 2025
1. What is the formula for calculating the speed of an object?
Physics Feb 28, 2025
65 Troba lequació de la recta s que passa per l'origen de coordenades i que forma un angle \( \alpha=60^{\circ} \) amb la recta \( r: x-y+2=0 \).
Geometry Feb 28, 2025
35 Troba el lloc geométric dels punts del pla, \( P \), en què la suma de quadrats de les distàncies als punts \( A(-4,0) \) i \( B(4,0) \) és 40 . 36 Calcula l'equació del lloc geométric dels punts del pla, \( P \), tals que la seva distància al punt \( A(1,0) \) és el triple de la seva distància a la recta \( x=2 \). Identifica la figura que ob- tens.
Geometry Feb 28, 2025
8 Find in terms of \( k \) : \( \begin{array}{lll}\text { a } \sum_{r=1}^{k} 4(-2)^{r} & \text { b } \sum_{r=1}^{k}(100-2 r) & \text { c } \sum_{r=10}^{k}(7-2 r)\end{array} \)
Algebra Feb 27, 2025
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