Answer:
answer of given question is -7/2
We can represent the base as z and the height as 2z+6. We are going to use the formula A=1/2*b*h and solve for z
180=1/2*z*(2z+6)
360=2z^2+6z
0=2z^2+6z-360
0=2(z^2+3z-180)
0=(z+15)(z-12)
So z=-15 and 12 but it must be positive so then the base is equal to 12
When we plug this into 2z+6 we get 30 for the height
2(12)+6=30
Hope this helps
Hey I'm in 6th too, Simplify means to solve the prob
You didn’t put a question
Answer:
A)2100 ml
Step-by-step explanation:
Given total vinegar is 3 1/2 liters and the used vinegar is 3/5 of the vinegar in the beaker:
#First calculate the amount of vinegar not poured in the beaker:

#Calculate amount of vinegar used in experiment:

#The unused vinegar is therefore calculated by subtracting the used vinegar from the total at the start of the experiment:

Hence, the unused vinegar is 2100 ml