Answer:
The solution of the first image is: b = √48
The solution of the second image is: c = √125
Step-by-step explanation:
Here we have two triangle rectangles, first, we need to remember the Pythagorean theorem.
For a triangle rectangle with cathetus A and B, and a hypotenuse H, we have the relationship:
A^2 + B^2 = H^2
Where H is the side that is opposite to the right angle (the angle of 90°)
In the first image, we can see that the hypotenuse is equal to 8, and one cathetus is equal to 4.
We want to find the value of b, that is the other cathetus.
Then we have:
4^2 + b^2 = 8^2
b^2 = 8^2 - 4^2
b^2 = 48
b = √48
Second image:
in this case, c is the hypotenuse, a and b are the cathetus.
We know that:
a = 5, b = 10
Then we have the equation:
a^2 + b^2 = c^2
Now we can replace the above values:
5^2 + 10^2 = c^2
25 + 100 = c^2
125 = c^2
√125 = c
F(x). "f(x) = ... " is the classic way of writing a function. And there are other ways, as you will see! .... Example: {(2, 4), (2,5), (7,3)} is not a function because {2,4} and {2,5} means that 2 could be related to .
Tao ate 19 hotdogs approximately.
Step-by-step explanation:
Given,
Number of hotdogs eaten by Massimo = 24
This represents 125% of the hotdogs eaten by his twin Tao.
Let,
x be the number of hotdogs eaten by Tao.
125% of x = 24
Dividing both sides by 1.25
Rounding off to nearest whole number
x=19
Tao ate 19 hotdogs approximately.
Keywords: percentage, division
Learn more about division at:
#LearnwithBrainly
2/5 of 30 = 12
30 + 12 = 42
£42
