Answer:
The perimeter =72
The width = 16
The length = 20
Step-by-step explanation:
.A rectangle has 4 sides , so 72 divided by four is 18. The question is that the width is 4 less than the length. The difference between the length and the width is 4 so increase the length by 2 and decrease the width by 2. Now the numbers obtained are 16 ( 18 decreased by 2) and 20 (18 increased by 2). It is mentioned in the question that the width is less and length is more.
8x + y = 32
8(-2) + y = 32
-16 + y = 32
y = 32 + 16
y = 48
The coordinates of points A, B, and C are (5, 4), (–2, 1), and (4, –4), respectively. Which point, B or C, is closer to point A?
Elena-2011 [213]
Answer:
The distance between two points (x1,y1) and (x2,y2) = √((x1-x2)2+(y1-y2)2) Distance between A and B = √((5--2)2+(4-1)2) = √(72+32) = √(49+9) = √58 = 7.62 Distance between A and C = √(12+82) = √65 = 8.06 Point B is closer to A. Another method to solve this problem is to draw the points on a graph paper and measure distance with a ruler.
13+13+13+13=52, not 43 .
<span>43 is a prime number therefore the only two factors are 1 and itself, Technically, you can say that 21.5 multiplied by 2 would be 43.</span>
Given:
The cost to install x number of central air conditioning units for a company is given by the function
To find:
The cost to install 45 air conditioners.
Solution:
We have,
Putting x=45, we get
Therefore, the cost to install 45 air conditioners is $60433.33.
