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nydimaria [60]
3 years ago
9

Draw a line parallel to a given line at a distance of 5cm

Mathematics
1 answer:
Rus_ich [418]3 years ago
4 0

Step-by-step explanation:

1.Make a line l .

2.Make a perpendicular to this line .

3.Extend the line.

4.Extend compass for 5 cm arc .

5.Place the compass on the line l at the point of perpendicular and make arc on the extended line .

6.Draw line through the point of intersection.

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What is the math paper lesson 68
lapo4ka [179]
Do u mean from the book or something?

3 0
3 years ago
F(x)= x^2 -3 find f(-2)
mel-nik [20]

Answer:

Step-by-step explanation:

F(x) =2 when x^2-3

(2)^2-3=4-3=1

8 0
4 years ago
Read 2 more answers
Find the centroid of the triangle with these vertices: P (-1,7), Q (9,5), and R (4,3).
Mumz [18]

Answer:

The coordinates of the centroid are:

O\:=\:\left(4,\:5\right)\:\:

The diagram is also attached below.

Step-by-step explanation:

Given the vertices

  • P (-1, 7)
  • Q (9, 5)
  • R (4, 3)

We know that the intersection of medians brings the centroid of the triangle.

The centroid of a triangle is given by

O\:=\:\left(\frac{P_x+Q_x+R_x}{3},\:\frac{P_y+Q_y+R_y}{3}\:\right)

In this example,

P_x=-1,\:P_y=7

Qx=9,\:Q_y=5

Rx=4,\:R_y=3

substituting in the formula

O\:=\:\left(\frac{-1+9+4}{3},\:\frac{7+5+3}{3}\:\right)\:\:

O\:=\:\left(\frac{12}{3},\:\frac{15}{3}\:\right)\:\:

O\:=\:\left(4,\:5\right)\:\:

Therefore, the coordinates of the centroid are:

O\:=\:\left(4,\:5\right)\:\:

The diagram is also attached below.

6 0
3 years ago
Explain the difference between linear, exponential, and quadratic functions in terms of their graphs, their patterns, and their
Kipish [7]

Answer:

Quadratic functions are those where their rate of change changes at a constant rate. Exponential functions are those where their rate of change is proportional to itself.

An example of a quadratic function would be the shape that a ball makes when you throw it. Gravity causes a constant acceleration, the ball slows down as it is moving up, and then it speeds up as it comes down.

An example of an exponential function would be the population of a bacterium as long as there is enough space and nutrients or how your money grows with compound interest in a bank.

A quadratic function is one in the form

f(x)=ax2+bx+c  

It’s rate of change (first derivative) is linear.

f′(x)=2ax+b  

The rate of the rate of change (second derivative) is constant.

f′′(x)=2a  

Quadratics are then the solutions to the differential equation

f′′=C  

An exponential function is one in the following form.

g(x)=Aekx  

It’s rate of change is another exponential function.

g′(x)=Akekx  

So exponentials are the solutions to the differential equation

g′=kg

Step-by-step explanation:

Yes. : )

8 0
3 years ago
What is the midpoint of this interval? 50 < x ≤ 60​
motikmotik

Add the two ends together and divide by 2:

50 + 60 = 110

110/2 = 55

The midpoint is 55

3 0
3 years ago
Read 2 more answers
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