Answer:
(2400+420).
Step-by-step explanation:
We can break this into the same pattern as the other numbers, giving us:
(60×40)+(60×7)
When we multiply these we get:
(2400+420).
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:
Step-by-step explanation:
if to substitute the coordinates of the point into the equation:
2*(-3)=2*a-7, then a=1/2
Step-by-step explanation:
When two lines are parallel,their slopes are equal.
Given line is 
.
Let 
be the slope of the line.
.
It is given that the line passes through the point 
.
The equation of the line passing through 
and has slope is 
So, the equation is 
which simplifies to 
