Answer:
6x^3 + 3x^2 - x
Step-by-step explanation:
6x^3 - X x (1-3x)
= 6x^3 - x + 3x^2
=6x^3 + 3x^2 - x
Answer:
Angle CAB=56 degrees
Step-by-step explanation:
See the attached image for the diagram.
In triangle BMC
|BM|=|MC| (Radii of a Circle)
Therefore, triangle BMC is an Isosceles Triangle; and


Next,

Answer: Should be 140000 cm
Step-by-step explanation:I may be wrong but 240 x 5 is 1400 and that to cm is 140000
Answer: ∠DOB: 48°
Step-by-step explanation:
1. we need an equation first. the sum of all angles (108°, n°, 2n°) is equal to 180°. we can depict this with the equation: 108°+2n°+n°=180°
2. now we can solve for the missing variable, n.
108°+3n°=180° → subtract both sides by → 3n°=72° → divide both sides by 3 → n=24°
3. now that we know that n=24°, we can solve the value of ∠DOB. we can see that ∠DOB is 2n° which we just plug the number we got for n into the equation. 2*24=48° meaning ∠DOB is 48°
hope this heped! ♡
Answer:
The value of
= 
Step-by-step explanation:
Vertical Angle theorem: It is about the angles that are opposite to each other.
Also, vertical angle are congruent that means vertical angles are equal.
In the given figure;
and
are vertical angle
then, by vertical angle theorem,
.
Supplementary angle: the sum of the angles whose measure on the straight line is 180 degree.
From the figure,
,
and
forms a straight line.
then, by the definition of Supplementary angle;

Substituting the value of
in above equation:
or

Simplify:

therefore,
and
,
the value of
.