Answer:
125
Step-by-step explanation:
divide both sides of the equation by 0.8
0.8÷0.8=0.8÷100
any expression divided by 1 is itself
x=100÷0.8
divide the numbers
100÷0.8=125
125 is your answer
Answer:
51.05 is the answer of this question
Answer:
10
Step-by-step explanation:
Using Euler's formula for polyhedra
F + V - E = 2
Here V = 16 and E = 24, thus
F + 16 - 24 = 2, that is
F - 8 = 2 ( add 8 to both sides )
F = 10
Assuming angle a and angle b are not equal and the given triangle is a right triangle .
Let's see cos(90-b)
Here we use the formula of cos(A-B)=cos A cos B -sin A sin B
And on using this formula,we will get
cos(90-b)= cos 90 cos b + sin 90 sin b
Value of cos 90 = 0 and sin 90 =1 , And on using these values, we will get
cos(90-b) = (0) cos (b) + (1) sin (b)
cos(90-b) = 0 + sin (b)
cos(90-b) =sin(b)
As we see that on using the formula, we are getting cos(90-b)= sin b .
So the correct option is cos(90-b)= sin b
Answer:
x=34
Step-by-step explanation: