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Mrrafil [7]
4 years ago
12

7. A rectangle has an area of 45m2

Mathematics
1 answer:
ANTONII [103]4 years ago
4 0

Answer:

14 meters

Step-by-step explanation:

The area of a rectangle is given by

A = l*w

45 = l*9

Divide each side by 9

45/9 = 9l/9

5 =l

We want the sum of the length and width

w+l = 9+5  =14

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How do you graph 2x + y > 4
cestrela7 [59]

Rewrite the inequality as

y > -2x+4

We can compare this expression to the function

y=-2x+4

The inequality states that we want to consider all the point whose y coordinates are greater than the ones of the points that lay on the graph.

So, we can graph the inequality in two steps:

  1. Graph the line y=-2x+4
  2. Consider all the point above the graph (greater y values means "higher")

Since the function y=-2x+4 is a line (because it is a first-degree polynomial), you can graph it by simply sampling two points: if for example we choose x=0 and x=1, the correspondent y values are

x=0 \implies y = -2\cdot 0+4 = 4,\quad x=1\implies y = -2\cdot 1+4 = 2

So, the line passes through the points (0,4) and (-1,2). Connect them and you have the graph of the line.

5 0
4 years ago
The line segment joins the complex numbers
wolverine [178]
In the pictured graph, the X axis is labeled as real Axis and the Y axis is labeled as Imaginary axis.

The letter i after a number is considered an imaginary number.
 So in the given numbers 2 +2i the w is the real number and 2i is the imaginary number, which is located at the dot labeled B.

-1 +3i, -1 is the real number and 3i is the imaginary number, which is located at the dot labeled A.

Line Segment AB is the correct answer.




8 0
4 years ago
Write a function called circle that takes a scalar input r. it needs to return an output called area that is the area of a circl
Aliun [14]
Ok so I'll demonstrate in programming language python.

import math
def circle():
r = float(input("Enter r: "))
a = math.pi * r ** 2
print("Area of circle with r = {0} is {1
}cm2".format(str(r), str(a))

circle()
8 0
3 years ago
M 2 = 40°, m 4 = 150°, m 3 =<br><br> 30<br> 70<br> 110<br> 150
Anastasy [175]

A theorem suggests that an exterior is equivalent to the sum of two remote angles, so angle 4 = angle 2 + and 3

150 = 40 + x

x = 110

m^3 = 110

7 0
3 years ago
What is the probability of the complement of rolling a number less than 5 by using a six sided dye
IrinaVladis [17]

Answer:

2/3

Step-by-step explanation:

Less than 5 is 1,2,3,4 and 4 out of 6 is also equal to 2/3

3 0
3 years ago
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