The sum of all the angles in a triangle is 180°.
There is a right angle -> a 90° angle on the hypotenuse of the largest triangle (the largest being the one that contains both smaller triangles)
To solve this problem, you don't really need to solve y.
Next to the 48° angle, you have two of the same angles, both x variables.
The sum of these three angles has to be 180°
Now that we have x, we can calculate the value of z.
We add the value of x and the 90° angle, we later subtract it from 180°
Calculating the value of z:
If you really want to know the value of y, you just add up the 90° angle and the 48°, then subtract that from 180°
Answer:
The lowest whole number ratio of the elements in a compound is called <u><em>the empirical formula.</em></u>
Step-by-step explanation:
A molecular formula consists of the chemical symbols of the constituent elements of a compound followed by numerical subscripts that describe the number of atoms of each element present in the molecule.
Then, the representation of the elements that form a compound and the proportion in which they are found, or the number of atoms that form a molecule is called the chemical formula.
The empirical formula is an expression that represents the simplest proportion in which atoms that form a chemical compound are present. It is then the simplest representation of a compound. Therefore, it is called the minimum formula.
In summary, the empirical formula is a formula that indicates the simplest integer ratio of all atoms in a molecule.
Finally, <u><em>the lowest whole number ratio of the elements in a compound is called the empirical formula.</em></u>
Answer:
64/9 or 7 or 1/9
Step-by-step explanation:
4 3/9 + 2 7/9 = 64
9
= 71
9
Domain: Every possible x value.
Range: Every possible y value.
Answer:
Domain: [-5,-3)⋃(-2,4]
Range: [-1,4]
Remember that when there is unfilled dot on the graph that means whatever the number is there on x and y isn't being used which you can follow it by ) not ]. Although Y=2 isn't used on the right function but there is value for Y on the left one which is equal to X=-4 and the same goes for Y=3. On the other hand when it comes for the X=-3, that's not a part of the domain neither the X=-2.
Answer:
predicted: 15.7
residual: 1.3
Step-by-step explanation:
In x-axis, age of the tree is represented, and in y-axis, height of the tree is represented. When the tree is 5 years, x = 5, and the predicted value is:
f(5) = 1.3(5) + 9.2 = 15.7
Residual value is computed as follows:
residual = observed - predicted
residual = 17 - 15.7 = 1.3