The domain are the required input for a given function, while the range are the output or result from the function.
Your answer will be B because since the base is 4 you need to multiply it with something that will divide by 2 and equal 20. so 4x10=40 and 40/2=20 so b is your answer
Answer:
A, the solutions are x=3,2
Step-by-step explanation:
8+(-10) is like 10-8 except backwards so how i do some problems is like that and then add a negative sign; so say if i were doing 8+(-10), i would do 10-8 which equals 2 and then since 10 is bigger than 8 and it’s a negative number, i would put -2 as my answer
let length = x
width is 7 feet less than length
width = x-7
area = length *width
area = x(x-7)
170=x²-7x
x²-7x-170=0
x²-17x+10x-170=0
x(x-17)+10(x-17)=0
(x-17)(x+10)=0
x=17 or x=-10
since length cannot be negative so x=17
and width =x-7 =17-7=10
length =17 feet and width =10 feet
