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miv72 [106K]
3 years ago
11

Solve 3 - x/2 > 15..

Mathematics
2 answers:
givi [52]3 years ago
7 0

Answer:

A. x ≤ 24

Step-by-step explanation:

  • \small \sf \: 3 - \frac{x}{2} ≥ 15 \\

multiply both side by 2 . Since 2 is the positive the inequality direction remains the same.

  • 6 - x ≥ 30

subtract 6 from both sides

  • 6 - 6 - x ≥ 30 - 6
  • -x ≥ 24

Divide both side by - 1. Since -1 is negative, the inequality direction remains the change.

  • x ≤ -24
ruslelena [56]3 years ago
4 0

Answer:

x ≥-24

Step-by-step explanation:

3 - x/2 ≥ 15

Subtract 3 from each side

3-3 - x/2 ≥ 15-3

-x/2 ≥12

Multiply by -2

-x/2 * -2 ≥12 *-2

x ≥-24

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A circle with circumference 20 has an arc with 72 degree central angle what is length of the arc
Debora [2.8K]

Answer:

<h2>4</h2>

Step-by-step explanation:

<em>Look at the picture.</em>

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<em>At the beginning we have to calculate what part of the angle 360° is the given angle 75°.</em>

<em />\dfrac{75}{360}=75:360=0.2<em />

<em>The same part of the circumference of the circle is the arc defined by this central angle.</em>

The circumference <em>C = 20</em>.

Therefore

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4 0
3 years ago
If 3x - 2y = 9 , 27x³- 8y³= 1377 , prove that xy = 4 <br><br><br><br>plzz answer this question... ​
solniwko [45]

Step-by-step explanation:

Here we are given that , the Value of

  • 3x - 2y = 9
  • 27x^3 - 8y^3 = 1377

And we need to find the prove that ,

  • xy = 4

We know a identity as ,

  • (a-b)^3 = a^3-b^3-3ab(a-b)

On cubing both sides of the given equation,

  • (3x-2y)^3 = 9^3

Simplify and then substitute ,

  • 27x^3-8y^3 -3(3x)(2y)(3x-2y ) = 729

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Hence Proved !

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scZoUnD [109]

Answer:

A. 5, 7, 11; B: 17, 19, 23

Step-by-step explanation:

These are all the numbers that don't have common factors besides one and itself

5 star, thank, and brainliest if helpful!

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Solve this equation 4y+228=352
statuscvo [17]
4y + 228 = 352

4y = 352 - 228

4y = 124
---     ----
4        4

------------
| y = 31  |
------------


hope this helps
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Answer: $105

Step-by-step explanation:

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