Answer:
x-intercept(s): (0,0)
y-intercept(s): (0,0)
Step-by-step explanation:
To find the x-intercept(s), substitute in 0 for y and solve for x
0 = -x
To find the y-intercept(s), substitute in 0 for x and solve for y
y = -(0)
Answer:
4.6 hours
Step-by-step explanation:
we first need to calculate the total distance he covered and total time taken whole for the journey.
Distance= speed X time
time = Distance/speed
let the total distance be X. he covers 2/5 if the journey first.
2/5 = 0.4
Time = 0.4x/45 hours
the remaining journey is 3/5x
he covers 1/3 X 3/5= 0.2x
time taken = 0.2/90 X hours
the remaining distance = 100× 1.2 = 120km
we add 0.4x + 0.2x to get the fraction he had covered
0.6x.
the remaining distance was X - 0.6x = 0.4 X
thus 120 km represents 0.4x of the journey
we calculate now the value of X
0.4x = 120
X = 300km
Total time taken = 0.4x/45 + 0.2/90 + 1.2 hours
replace X to get time
2.7 hours + 0.7 hours + 1.2 hours
= 4.6 hours
So first of all the triangle is flipped so the corresponding sides are a little confusing to see. Either way HJ and DF correspond meaning 9 and 12 correspond.
What's the relation? Well 9/12 is 3/4 so each side of the small one is 3/4 of the big one!
GH and CD correspond so 12 is 3/4 of CD
So set up this equation:
12 = 3/4*CD
Multiply by 4/3
16=CD
That's your answer for the first one^
Now finding the perimeter is just adding all the sides so we have two of the sides, 16 and 12 but we need to find the hypotenuse. We can do the same thing earlier just with the hypotenuse side!
15 = 3/4*FC
4/3 times both sides
20=FC
So just add 20 and 16 and 12 which is 48! 48 is your perimeter!
Hope that helps! :3
- mathwizzard3
Step-by-step explanation:
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Answer:
4.55294117. If you want it rounded look below.
Step-by-step explanation:
-Rounded-
Hundredths:4.55
Tenth: 4.6
Thousandth: 4.553
Whole Number: 5
Hope this helps. :D