1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
konstantin123 [22]
2 years ago
13

Item 1

Mathematics
2 answers:
Arturiano [62]2 years ago
5 0

Answer:

The answer is -3/5 > -2/3

Step-by-step explanation:

okay

Anuta_ua [19.1K]2 years ago
4 0

Answer:

the answer is. ......

−3/5>2/3

You might be interested in
The vertices of a square CDEF are C(1,1), D(3,1), E(3,-1) and F(1,-1). What formulas prove that the diagonals are congruent perp
Oxana [17]

To prove that the diagonals are congruent, you need to formula to compute the distance between two points:

d(A,B) = \sqrt{(A_x-B_x)^2 + (A_y-B_y)^2}

Using that formula, you may prove that d(C,E) = d(D,F), which means that the two diagonals have the same length.

To prove that they are perpendicular, you need the formula to compute the slope of a segment. The slope, knowing the enpoints, is given by

m = \cfrac{\Delta y}{\Delta x} = \cfrac{A_y-B_y}{A_x-B_x}

You can use this formula to prove that

m_{CE} = -\cfrac{1}{m_{DF}}

In fact, if one slope is the opposite of the reciprocal of the other, the two segments are perpendicular.

Finally, to prove that they bisect each other, you first need to find the point where they meet. First of all, you need to find the line the segments lie on: the formula is

y-y_0 = m(x-x_0)

where (x_0,y_0) is one of the points belonging to the line, and you already know how to find the slope. Then, you find the point of intersection, say A, by solving the system involving the two lines:

\begin{cases} y= m_{CE}x+q_{CE}\\ y = m_{DF}x+q_{DF} \end{cases}

And use again the formula for the distance between two points to prove that

d(A,C) = d(A,D) = d(A,E) = d(A,F)

4 0
3 years ago
A train travels 250 km with a average speed of 75 km/hr and 350 km with 70km/hr and 200 km with average speed of 30km/hr. What w
pentagon [3]

Answer:

53 1/3 km/h

Step-by-step explanation:

average speed = (total distance)/(total time)

average speed = distance/time

time * average speed = distance

time = distance/(average speed)

250 km at 75 km/h

distance = 250 km

time = (250 km)/(75 km/h) = 3.33333... hours

350 km at 70 km/h

distance = 350 km

time = (350 km)/(70 km/h) = 5 hours

200 km at 30 km/h

distance = 200 km

time = (200 km)/(30 km/h) = 6.6666...  hour

total distance = 250 km + 350 km + 200 km = 800 km

total time = 3.33333... hours + 5 hours + 6.66666... hours = 15 hours

average speed = (total distance)/(total time)

average speed = (800 km)/(15 hours)

average speed = 53 1/3 km/h

3 0
2 years ago
2)1694 what is the answer​
8_murik_8 [283]

Answer:

0.00118063754

is right...

Step-by-step explanation:

5 0
3 years ago
A small company did an analysis of their pay scale versus years of experience and found that the line of best fit was y=2035.6x
PtichkaEL [24]
X stands for the number of years experience . y = 36000 when x = 0 years experience, so the 36000 is the starting salary for a new employee.
3 0
3 years ago
Read 2 more answers
Which polynomial identity will prove that 64+27=91
Kipish [7]
8^3+3^3

27=3*3*3
64=8*8*8
8 0
3 years ago
Read 2 more answers
Other questions:
  • A skateboarder traveled 3 5 of a mile in 1 20 of an hour. What was the skateboarder’s speed in miles per hour? A) 9 miles per ho
    12·2 answers
  • What value of q makes the statement true? -(q + 14) = -3 + (-14)
    8·2 answers
  • How do i turn factions to decimals?<br><br> Such as 2/7 written as a decimal is:
    13·2 answers
  • The point (2,–5), when reflected across the origin, maps onto the point _______. answers : (–5,2) (5,–2) (–2,5) (2,5)
    10·1 answer
  • 5756645+456775(5667+567668)56+567[68655667-67767677]= ?
    13·1 answer
  • The table contains some points on the graph of an exponential function.
    5·1 answer
  • Jane is opening a savings account with an initial deposit of $100. The bank offers a 5%
    12·1 answer
  • Need help on my homework questions
    5·2 answers
  • 4. Nicole has 3,874 pieces of candy to hand
    8·2 answers
  • Find the values of the missing sides in the parallelogram given.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!