Answer:
the area of a triangle = 19 km²
Step-by-step explanation:
area of a triangle = 1/2 b h
where b = 5km
h = 7.6 km
plugin values into the formula:
A = 1/2 (5) 7.6
A = 19 km²
therefore,
the area of a triangle = 19 km²
Answer:
74.5%
Step-by-step explanation:
The total number of people sampled is 1000 people.
There are 745 people who where corrective lenses.
Percent is (part)/(whole); in this case, the part is 745 and the whole is 1000, so:
745/1000 = 74.5%
Thus, the answer is 74.5%.
Hope this helps!
Answer:
Option D.
Step-by-step explanation:
we know that
The inscribed angle measures half that of the arc comprising
so
we have
----> given problem
substitute
Rewrite
Answer:
The first four terms of the sequence is : A) 7, 17, 37, 77.
Step-by-step explanation:
The given function f(n) = 2 x f(n − 1) + 3
Also, f(1)= 7
<u>FOR n= 2</u>
f(2) = 2 x f(2-1) + 3 = 2 x f(1) + 3
= (2 x 7) + 3 = 14 + 3 = 17
⇒f(2) = 17
<u>FOR n= 3</u>
f(3) = 2 x f(3-1) + 3 = 2 x f(2) + 3
= (2 x 17) + 3 = 34 + 3 = 37
⇒f(3) = 37
<u>FOR n= 4</u>
f(4) = 2 x f(4-1) + 3 = 2 x f(3) + 3
= (2 x 37) + 3 = 74 + 3 = 77
⇒f(4) =77
So, the first four terms of the sequence are 7, 17, 37, 77.
A) is the correct option.
-- Any "regular" polygon has all sides equal AND all angles equal.
-- The sum of the angles inside a 4-sided figure is 360° .
-- So it it's a regular figure, then each angle is 360°/4 = 90° .
-- The total angle around each vertex is 360° .
If 90° of them are inside, then the exterior angle is the remaining <u>270° </u>.