First one:
cos(A)=AC/AB=3/4.24
cos(B)=BC/AB=3/4.24
Cos(A)/cos(B)=AC/AB / (BC/AB) = AC/AB * AB/BC = AC/BC=3/3=1
Second one:
To solve this problem, we have to ASSUME AFE is a straight line, i.e. angle EFB is 90 degrees. (this is not explicitly given).
If that's the case, AE is a transversal of parallel lines AB and DE.
And Angle A is congruent to angle E (alternate interior angles).
Therefore sin(A)=sin(E)=0.5
Answer:
The distance between the two points is 10 units.
Step-by-step explanation:
Given that,
First point = (3,-4)
Second point = (9,4)
To find,
The distance between the two points.
Solution,
The distance between two points (x₁,y₁) and (x₂,y₂) is given by distance formula i.e.
Put all the values,
So, the distance between two given points is 10 units.
Reference,
brainly.com/question/3085146
Answer:
a) For h(2)=5 then k=4
b) For h(3)=k then k=3
c) For h(k)=k then k=3
Step-by-step explanation:
Given that the function h is defined by
where
a) To find for h(2)=5:
where
that is put x=2 in the above function
Now
k=4
Therefore k=4
b) To find for h(3)=k:
where
that is put x=3 in the above function
Now
k=3
Therefore k=3
c) h(k)=k
To find for h(3)=K:
where
that is put x=k in the above function
here
Now
k-3=0
k=3
Therefore k=3
The process is called estimation
In estimation, we will do a rough calculation of value, quantity, or number.
In most cases, estimation is used if the detail of smaller value is not really mattered that much. In decimal calculation, the most important number is the first number behind the point
So when calculating <span> 0.79 times 403 , most people will make a rough calculation by changing 0.79 to 0.8 instead because the difference wouldn't be matter that much</span>
Answer:
65%
Step-by-step explanation:
100% - 35% = 65%