Answer:
Area=45
Step-by-step explanation:
Area=AC*BD/2=V12^2+(-9)^2*V6^2+8^2=(V144+81)*V36+64/2=V225*6/2=15*6/2=45
Answer:
m=1/3
Step-by-step explanation:
so find slope do this
(y^2-y^1)/(x^2-x^1)
so
(1+2)/(-3-6)
1/3
we have to find sum of even integer between 30 and 70
first term is 32


......

common difference is

firstly , we will find n
we can use formula



now, we can find sum

.............Answer
Answer: 387 1/2 miles
Step-by-step explanation:
From the question, we know that 20 gallons can be used for 500 miles. Therefore, the gallons of gas per mile will be:
= 500/20
= 25 gallons per mile.
The number of miles that a 15 1/2 gallons will use will be:
= 25 × 15 1/2
= 387 1/2 miles