Answer:
57.1428571429 miles per hour <em>Round off the answer to what your teacher asked.</em>
Step-by-step explanation:
Since we want final answer in miles per hour, lets change the 30 mins to 0.5 hours
Phase 1 =25miles per 0.5 hours
Phase 2 = (200miles-25miles) per 3 hours
Speed = distance/time
Average speed = total distance/ time
Total distance is 200miles because both phases say from new york that means it travels 25 miles away from new york then 3 hours later it is 200 miles away from new york
total time =3 hours+0.5 hours = 3.5 hours
Average speed = 200/3.5
Average speed = 57.1428571429 miles per hour
<em>Rate brainliest please</em>
Answer:
Step-by-step explanation:
Using the graph we can notice something
let's take the abscissa -2 and -4
- the ordinate that goes with -2 using g is 0
- the ordinate that goes with -4 using f is 0
so we can say that :
f(-4)=g(-2)
wait we khow that g(x)=f(k*x)
so x= -2 then let's replace it in the expression : f(k*x)
we get f(-4)=g(-2)=f[k*(-2)]
let's solve the equation: -2k = -4
k = -4/-2
k=2
so finally we get k=2
let's check :
from the graph we get :
we have (-1)*2 = -2
so it is true
Answer:
third option
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 2x - 5 ← is in slope- intercept form
with slope m = - 2
Given a line with slope m then the slope of a line perpendicular to it is
= - 
= - 
= 
, then
y = x + c ← is the partial equation
To find c substitute (- 1, 1) into the partial equation
1 = - + c ⇒ c = 1 + = 
y = x + ← equation of perpendicular line
Answer:
58/15
Step-by-step explanation:
1/6 a^2 + 9/10 b
Let a = -4 and b = 4/3
1/6 ( -4)^2 + 9/10 ( 4/3)
PEMDAS says powers first
1/6 (16) + 9/10 ( 4/3)
Then multiply
16/6 + 6/5
Simplify
8/3 + 6/5
Get a common denominator
8/3 *5/5 + 6/5 *3/3
40/15 + 18/15
58/15
Just multiply 20 x 30 and you get 600 and that is your answer :3<span />
