Step-by-step explanation:
5(tanx)^2 -2 +tanx=0
let tanx=y
5y^2 + y-2=0
y=0.5403 or y= -0.7403
tanx=0.5403
x=arctan(0.5403)
x=28.38°
or
tanx=-0.7403
x=arctan(-0.7403)
x=143.49°
Mark reads about 350 (D) wpm
Explanation:
700 words x 10 pages= 7000 words
7000 words/ 20 minutes
= 350 wpm
Answer:
6000000000
Step-by-step explanation:
Given the following question:

<u>Find the billions place value:
</u>

<u>Round to the nearest billion:</u>



Your answer is "6000000000."
Hope this helps.
Answer:
58
Step-by-step explanation:
B=base
A=side
X=2(a+b)=2·(13+16)=58
A convex figure with three sides is triangle. The sum of the measures of all interior angles of the triangle is 180°.
Let
be interior angles of this triangle. Then

Find exterior angles of this triangle:
1.
is exterior angle adjacent to the interior angle 
2.
is exterior angle adjacent to the interior angle 
3.
is exterior angle adjacent to the interior angle 
The sum of the measures of all exterior angles is

Answer: 360°