Answer: B) 14
Step-by-step explanation:
AE = 2BD
AE = 2(7)
AE = 14
Hope this helps!
285 since the tenth place is a 3
For this case we have the following equation:
To determine if the points belong to the line, equality must be met.
We have then:
For (5, 2):
Equality is not met and therefore, this point does not belong to the line.
For (9, 0):
The equality is fulfilled and therefore, the point belongs to the line.
Answer:
(a) (5, 2), no
(b) (9, 0), yes
Formula of Area of triangle.... A=1/2bh where A is area, b is the base, and h is height.
h= 3b-1
Area=12
At this point you want to plug in what you know into the equation.
12=1/2b(3b-1)
Then you can solve for b. First multiply each side by 2 to cancel the fraction.
24=b(3b-1)
Then distribute the b term.
24=3b^2 - b
Then set the equation equal to zero.
0=3b^2-b-24
Then either factor or use the quadratic equation to solve for b.
0=(3b-8)(b-3)
which means that b=3 and b=8/3
You then plug both answers back into the original equation (12=1/2b(3b-1))and see if there are any extraneous solutions. When you do, you can see that 8/3 as an answer does not equal 12. Therefore, the correct answer and the base of the triangle is equal to 3.
Answer is B
Hope this helps!