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3 years ago

-7 opposite and absolute value

Mathematics

2 answers:

77julia77 [94]3 years ago

7 0

It is 7 opposite is different and absolute value would be 7 also it is always positive

vesna_86 [32]3 years ago

5 0

The absolute value is +7. for future references, just remember if it has so negative, the absolute value will be -7... vice versa haha:)

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The area of a rectangle is 144cm squared.if the length is 16cm. What's the perimeter?

andreev551 [17]

Answer:

Step-by-step explanation:

rectangle area = 144 cm

Formula: A= L*H

The give the length which is 16

144 = 16*H

Since they gave u the area instead of the height, work backwards

144/16 = 16/16 *H

9 = H

Now you have the length and height

Length: 16

Height: 9

Perimeter is when you add up all the sides

The top and bottom of the rectangle is the length which is 16 so

16 + 16 = 32

The left and right side of the rectangle is the height which is 9 so

9 + 9 = 18

Now add then both

32 + 18 = 50

So the perimeter of the rectangle is 50

Hope this helped!

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2 years ago

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Lapatulllka [165]

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2 years ago

How do you write the algebraic expression: x=-2.5 like i mean the answer

Ganezh [65]

Answer:

2.5 × t = 2.5 t

Step-by-step explanation:

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2 years ago

What is the sum of the complex numbers 6+5i and 8+3i2? (NOTE: −1‾‾‾√=i )

Ahat [919]

Answer:

11 + 5i

Step-by-step explanation:

6 + 5i + 8 + 3i² =

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4 0

2 years ago

There are 130 people in a sport centre. 73 people use the gym. 62 people use the swimming pool. 58 people use the track. 22 peop

Delvig [45]

Answer:

$\frac{11}{87}$

Step-by-step explanation:

Total number of people = 130

Number of people who use the gym = 73

Number of people who use the pool = 62

Number of people who use the track = 58

Number of people who use the gym and the pool = 22

Number of people who use the pool and the track = 29

Number of people who use the gym and the track = 25

Number of people who use all three facilities = 11

Total number of people who use at least two facilities = 22 + 29 + 25 + 11 = 87

The probability that the randomly selected person uses all three facilities = number of those who use all three facilities ÷ total number of people who use at least two facilities.

==> 11 ÷ 87

==> $\frac{11}{87}$

3 0

2 years ago