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umka21 [38]
3 years ago
9

Jim wants to put a wallpaper border around a rectangular room. The

Mathematics
2 answers:
Mariana [72]3 years ago
8 0

Answer:

Perimeter is distance around the room.

Perimeter = 14 + 10 +14 +10 = 48 feet

Rolls needed = Perimeter / roll length = 48 /20 = 2.4.

Since you can't buy a partial roll you have to get a full roll

Rolls need = 2.4 rounded up to the next number is 3.

Answer is C.

Step-by-step explanation:

puteri [66]3 years ago
5 0

Answer:3

Step-by-step explanation:

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Given the following: P(A) =0.3 P(B) = 0.2 P(A OR B) = 0.5 P(A AND B) = 0 Which of the following is true?a. A and B are disjoint.
erastova [34]

Answer:

a. A and B are disjoint

Step-by-step explanation:

We know that P(A and B)=0, It means that event A and event B have nothing in common and it means that event A and event B are disjoints events.

The event A and event B are independent if

P( A and B)= P(A)*P(B)

P(A)*P(B)=0.3*0.2=0.06

So, P(A and B)≠P(A)*P(B)

Hence events A and B are not independent.

Option a is A and B are disjoints which is correct

Option b is A and B are neither disjoints nor independent which is partially false as A and B are disjoints event.

Option c states that A and B are independent which is clearly false.

Option d states that A and B are disjoints and independent which is partially false as A and B are not independent.

Hence the correct option is option A.

5 0
3 years ago
Has endpoints J(13, 8) and K(–6, –6). Find the coordinates of the midpoint of .
vova2212 [387]

Answer:

the midpoint of it is 8,-6

Step-by-step explanation:

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3 0
3 years ago
What is the absolute value of the complex number -4-√2
Zepler [3.9K]
|a+bi| = √(a² + b²)

-4-√2 i -> take a = -4 and b = -√2

|-4-√2 i| = √[ (-4)² + (<span>-√2)² ]
               = </span><span>√[ 16 + 2<span> ]
               </span></span><span>= √[ 18 ]</span> = <span>√[ 9 * 2 ]
               = 3√2
the absolute value is 3√2</span>

6 0
3 years ago
A regular hexagon has a radius of 20 in. What is the approximate area of the hexagon?
lawyer [7]

Answer:

1,038 in2

Step-by-step explanation:

In a regular hexagon, the radius and side length are equal in length... That makes the answer 1038 in.2 correct?

8 0
3 years ago
Read 2 more answers
How many solutions does the equation have 4x + 3=2(2x +9)
lbvjy [14]
I guess no solution
4x +3 = 4X + 18
4X - 4X = 18 - 3
0 = 15
6 0
3 years ago
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