A perpendicular line has as slope that is the opposite reciprocal of the original lines slope. This would mean that the slope of the perpendicular line would be -7/8 <span />
The club currently have 25 members
Yolanda's club requires that 80% of the members be present for any vote. If at least 20 members must be present to have a vote, it means that 80% of the members in Yolanda's club is 20 members.
In order to determine the number of members in the club, use this formula:
Number of members in the club = least number of members that have to be present to vote / percentage of members that must be present to vote
least number of members that have to be present to vote = 20
percentage of people that must be present to vote = 80%
20 / 0.8 = 25 members
A similar question was solved here: brainly.com/question/7807677?referrer=searchResults
88% of 55.6818182 is 49
i found this answer by dividing 49 by 88%.
Answer:
x=-3 or x=3/2
Step-by-step explanation:
We are given the following equation:
2x^2+5x-9=2x
We are asked to find the roots. That means just solve it for x.
2x^2+5x-9=2x
Subtract 2x on both sides:
2x^2+3x-9=0
Let's see if we can put this in factored form.
Compare
2x^2+3x-9=0
and
ax^2+bx+c=0.
a=2, b=3 , c=-9
We have to find two numbers that multiply to be ac and add up to be b.
ac=-18
b=3
What are two numbers that multiply to be -18 and add to be 3?
Say -3 and 6.
So we are going to factor 2x^2-3x+6x-9=0
The first two terms have a common factor of x.
The last two terms have a common factor of 3.
2x^2-3x+6x-9=0
x(2x-3)+3(2x-3)=0
Now we can factor the (x-3) out of those 2 terms there since they share that common factor:
(x+3)(2x-3)=0
(x+3)(2x-3)=0 implies x+3=0 or 2x-3=0.
So we must solve x+3=0 and 2x-3=0
x+3=0
Subtract 3 on both sides:
x=-3
2x-3=0
Add 3 on both sides:
2x=3
Divide both sides by 2:
x=3/2
The solutions are x=3 or x=-3/2
Simply then you get your answer