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Valentin [98]
3 years ago
9

What is the value of this expression -15-(-4)+17

Mathematics
2 answers:
Doss [256]3 years ago
7 0

\sf\implies \:  - 15 - ( - 4) + 17

\sf \implies \:  - 15 + 4 + 17

\sf \implies \:  - 15 + 21

\boxed{ \tt \: ans \dashrightarrow 6}

<h3>Remember these laws of integers:</h3>

  • (+)(-)=(-)
  • (-)(+)=(-)
  • (-)(-)=(+)
  • (+)(+)=(+)

lisabon 2012 [21]3 years ago
7 0

Answer:

6

Step-by-step explanation:

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emmasim [6.3K]

Answer:

C

Step-by-step explanation:

✔️First, solve for r:

r/2 ≤ 3

Multiply both sides by 2

r/2 × 2 ≤ 3 × 2

r ≤ 6

This implies that possible value of r is equal to 6 or less than 6.

Graphing this on a number line, the line with a shaded circle, indicating that 6 is included, starts at 6 and points to the left.

This indicates that value of r ranges from 6 and below.

The graph is C.

7 0
3 years ago
The aspect ratio is used when calculating the aerodynamic efficiency of the wing of a plane. For a standard wing area, the
Lesechka [4]

Answer:

Y=s^2/36 and y=5.7;14.3 ft

Step-by-step explanation:

A(s)=s2/36 is the function. A(s) is the aspect ratio, while s is the wingspan. A(s) = 5.7 if one glider has an aspect ratio of 5.7. We'd want to know the glider's wingspan. By replacing A(s) with Y, we get the following equation system:

  • Y=s^2/36    
  • with y = 5.7
  • 5.7 = s^2/36    
  • 5.7*36 =  s^2
  • √205.2 = s
  • 14.3 ft
7 0
2 years ago
Solve for x: -8 &lt; x-1 &lt; 5
olchik [2.2K]

Answer:

6 > x > -7

Step-by-step explanation:

-8 < x - 1 < 5

+1 + 1 + 1

_____________

-7 < x < 6

The above answer is written in reverse, which is the exact same result.

I am joyous to assist you anytime.

5 0
3 years ago
The solution set for 5v2 – 125 = 0 is
WARRIOR [948]

Answer:

v = ± 5

Step-by-step explanation:

given 5v² - 125 = 0 ( add 125 to both sides )

5v² = 125 ( divide both sides by 5 )

v² = 25 ( take the square root of both sides )

v = ± \sqrt{25} = ± 5


6 0
4 years ago
Please help me with this question if you can
Orlov [11]

Answer:

55y454t

Step-by-step explanation:

54wwrg

4 0
3 years ago
Read 2 more answers
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