Step-by-step explanation:
In the recursive formula an = an−1 + 5
Suppose if a_5 is the nth term then previous term is a_4
To get the previous term we need to subtract 1 from the n
So a_n is the nth term
is the previous term
Here 5 represents the common difference between two terms
So value of previous term is represented by
Answer :
The angle of depression from the top of the building is missing, therefore, we will consider it to be 60°, for your understanding.
Now,
According to the right triangle rule, we are given the angle, the adjacent side, and we have to find the opposite side.
Therefore,
Using SOH CAH TOA laws,
<span><span>SOH means,
Sine Ф = Opposite / Hypotenuse
</span><span>
CAH means,
Cosine Ф = Adjacent / Hypotenuse
</span><span>
TOA means,
Tangent Ф = Opposite / Adjacent
Where,
Ф is the angle of depression.
Hence,
Using Tangent Ф = Opposite / Adjacent</span></span>
Tangent 60° = Opposite / 60
1.73 = Opposite / 60
1.73 × 60 = Opposite
Opposite = 103.8 feet away from the <span>base of the building</span>
Answer:
Second graph only.
Step-by-step explanation:
The standard equation of a parabola is ax^2+bx+c where a,b and c are coefficients.
If the coefficient of (a) is positive then the parabola is concave upwards (as in picture 1)
If the coefficient of (a) is negative then the parabola is concave downwards as in picture 2.
Yes the diagnols of the parallelogram are perpendicular because the angles are perpendicular bisects of each other
Answer:
a) 64
b) 9
c) 1
d) 49
Step-by-step explanation:
8^2 = 64
same as 8*8
1^2 = 1
same as 1*1
3^2 = 9
same as 3*3
7^2 = 49
same as 7*7