Answer:
domain is (xo ≤ x ≤ 0.45 )
range is (xo ≤ y ≤ 8.1 )
Step-by-step explanation:
given data
constant speed = 18 miles per hour
total time = 27 minutes = 0.45 hour
solution
we consider here Domain number of hours = x and Range distance traveled = y
we apply here distanace formula that is
Distance = speed × time .........................1
put here value
Distance = 18 × 0.45 = 8.1 miles
and no of hours x = 0 to 0.45 hours
so here
So domain is (xo ≤ x ≤ 0.45 )
and
Distance is 0 to 8.1 miles
So range is (xo ≤ y ≤ 8.1 )
Answer:
The three answers are B,C,F
Answer:
x=4
Step-by-step explanation:
3(3x+2)=7(x+2) Cross product
9x+6=7x+14 Solve for x
9x-7x=14-6
2x=8
x=8/2
x=4
Answer: 31
Step-by-step explanation:
(x/5) - 1 = 5.2
x/5 = 6.2
x = 6.2 x 5
x = 31
Let's pick on two points. Let's say we pick the first two points which are (1,4) and (0,5,3.5)
The slope formula tells us that
m = (y2-y1)/(x2-x1)
m = (3.5-4)/(0.5-1)
m = (-0.5)/(-0.5)
m = 1
So the slope is 1. We can pick any other two points, run them through the slope formula, and we'll get the same result.
So that's why the answer is choice C) 1