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mina [271]
3 years ago
14

Drew replaces the light bulb in the hall closet every 9 months and replaces the air filter every 6 months. He just replaced both

items this month after how many months while he replace both the light and the air filter?
Mathematics
2 answers:
lawyer [7]3 years ago
5 0
I think is 54.



9. 9.
natita [175]3 years ago
4 0
The 18th month he will have to change both, 
     I hope this helped!
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Which table shows a proportional relationship between x and y? A. x y 2 4 3 6 4 9 B. x y 3 4 9 16 15 20 C. x y 4 12 5 15 6 18 D.
Sliva [168]

Answer:

C.

Step-by-step explanation:

The relationship is proportion if y/x is constant.

So it is C because 12/4 = 15/5 = 18/6 = 3.

7 0
3 years ago
The solution set of the equation Ix-1I=3 is
vladimir2022 [97]

Answer:

x = - 2 or x = 4

Step-by-step explanation:

the expression inside the absolute value can be positive or negative

Removing the bars and solve x - 1 = ± 3

x - 1 = - 3 or x - 1 = 3

x - 1 = - 3 ( add 1 to both sides ) ⇒ x = - 2

x - 1 = 3 ( add 1 to both sides ) ⇒ x = 4



7 0
3 years ago
1. Trapezoid BEAR has a height of 8.5 centimeters and parallel bases that measure 6.5 centimeters and 11.5 centimeters. To the n
e-lub [12.9K]
<h3>Given</h3>

1) Trapezoid BEAR with bases 11.5 and 6.5 and height 8.5, all in cm.

2) Regular pentagon PENTA with side lengths 9 m

<h3>Find</h3>

The area of each figure, rounded to the nearest integer

<h3>Solution</h3>

1) The area of a trapezoid is given by

... A = (1/2)(b1 +b2)h

... A = (1/2)(11.5 +6.5)·(8.5) = 76.5 ≈ 77

The area of BEAR is about 77 cm².

2) The conventional formula for the area of a regular polygon makes use of its perimeter and the length of the apothem. For an n-sided polygon with side length s, the perimeter is p = n·s. The length of the apothem is found using trigonometry to be a = (s/2)/tan(180°/n). Then the area is ...

... A = (1/2)ap

... A = (1/2)(s/(2tan(180°/n)))(ns)

... A = (n/4)s²/tan(180°/n)

We have a polygon with s=9 and n=5, so its area is

... A = (5/4)·9²/tan(36°) ≈ 139.36

The area of PENTA is about 139 m².

6 0
2 years ago
How many times bigger is 6.4*10^9 than 1.3*10^9
sukhopar [10]

Answer:

at least four times bigger

5 0
2 years ago
What is the value of X?
antiseptic1488 [7]
First you need to find the 3rd angle of the triangle
180 - 86 - 46 = 48

and then subtract the answer by 180 (because it’s a straight line)
180 - 48 = 132

so 132
8 0
3 years ago
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