Answer:
4.09 m
Step-by-step explanation:
Let the length of the shadow cast by a person be x m.
![\tan \: 24 \degree = \frac{height \: of \: person}{length \: of \: the \: shadow} \\ \\ 0.4452286853 = \frac{1.82}{x} \\ \\ x = \frac{1.82}{0.4452286853} \\ \\ x = 4.08778693 \: m \\ x = 4.09 \: m](https://tex.z-dn.net/?f=%20%5Ctan%20%5C%3A%2024%20%5Cdegree%20%3D%20%20%5Cfrac%7Bheight%20%5C%3A%20of%20%5C%3A%20person%7D%7Blength%20%5C%3A%20of%20%5C%3A%20the%20%5C%3A%20shadow%7D%20%20%5C%5C%20%20%5C%5C%200.4452286853%20%3D%20%20%5Cfrac%7B1.82%7D%7Bx%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%20%20%5Cfrac%7B1.82%7D%7B0.4452286853%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%204.08778693%20%5C%3A%20m%20%5C%5C%20x%20%3D%204.09%20%5C%3A%20m)
Answer:
3/8.
Step-by-step explanation:
If you draw a tree diagram, it will make it easier.
For first draw, there is 10/16 chance of drawing red.
In the second draw, if not replaced, there is 9/15 chance of drawing red as one red is already drawn with 9 red beads left.
So, 10/16*9/15=3/8.
Answer:
the answer is 20cm
Step-by-step explanation:
Area = Length times width
Answer:
The entry in
is 6.3.
Step-by-step explanation:
The table shows the prices of three items in a deli. The deli offers a 10% discount on weekends.
In a matrix
represents the nth element of mth row.
It is given that matrix A shows the discounted weekend rates. So the entry in
represents the discounted prize of pizza with extra cheese.
The original price of pizza with extra cheese is $7. After discount of 10%, the price of pizza with extra cheese is
![7-7\times \frac{10}{100}=7-0.7=6.3](https://tex.z-dn.net/?f=7-7%5Ctimes%20%5Cfrac%7B10%7D%7B100%7D%3D7-0.7%3D6.3)
The discounted prize of pizza with extra cheese is $6.3.
Therefore the entry in
is 6.3.