Part A)
The table doesn't represent y as a function of x.
Why? <span>One reason is that 1 or 3 is the first element in more than one ordered pair.
Part B)
f(x) = 10x + 20
f(120)= 10*120 + 20 = 1200 + 20 = 1220
</span><span>f(120) represents cost of boating for 120 hours.</span><span>
</span>
We have to consider the Order of Operations
And Divide the question into different parts
So we first do the Exponent:

= 32
(3×32-26)=(96-26)=70
Solve the parts in parenthesis
(8-(4-9)=(8-(-5)=(8+5)=13 (minus and minus becomes addition)
Distribute 7
7(13)=91
Now put the equation and equate everything
(3×

+13(-2))+7(8-(4-9)=70+91=161
Final Answer=
161
Answer:
4√5
Step-by-step explanation:
c = √a² + b²
c = √4² + 8²
c = √(16 + 64)
c = √80
c = 8.94427 (rounded to nearest 1/100000)
c = 4√5
Answer:
A= -53/7
Step-by-step explanation:
1 x 10 -1 x 7 x A=7 x 9
10-7A =7 X 9
10-7A=63
-10 -10
-7A=53
A= -53/7
Answer:
The Base-10 system.
Step-by-step explanation:
our everyday number system is a Base-10 system. • the Base-10 number system is known as the decimal system. and has 10 digits to show all numbers. 0,1,2,3,4,5,6,7,8,9. using place value and a decimal point to separate.