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marusya05 [52]
3 years ago
6

Solve 3(x + 2) > x.

Mathematics
1 answer:
Georgia [21]3 years ago
5 0
3(x + 2) > x
3x + 6 > x
3x - 3x + 6 > x - 3x
6 > -2x
6/-2 < -2x/-2
-3< x
(When dividing by a negative, reverse the direction of the inequality side, reverse it EVERY time you divide by a negative)

ANSWER: -3 < x
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Find the area of this semi-circle with diameter, d = 58cm.<br> Give your answer rounded to 2 DP.
Anastasy [175]

Answer:

The area of the semi-circle

                                  A = 1320.37 cm²

Step-by-step explanation:

<u><em>Explanation:-</em></u>

Given the diameter of the circle 'd' = 58cm

The radius of the circle 'd' = 2r

                                       r = \frac{d}{2} = \frac{58}{2} = 29

The area of the semi-circle

                           A = \frac{1}{2} \pi r^{2}

                           A = \frac{1}{2} (3.14) ((29))^{2}

                          A = 1320.37 cm²

5 0
3 years ago
Jane't solves the inequality 23x+7≤5 and shows her solution on a number line, as shown below. x ≥ 3 All values of x ____________
Sloan [31]

Answer:

values of x that makes the expression true are less than -2/23

Step-by-step explanation:

GIven the expression

23x + 7 ≤5

Subtract 7 from both sides

23x+7-7 ≤5 -7

23x < -2

x ≤ -2/23

Hence the values of x that makes the expression true are less than -2/23

4 0
3 years ago
Can someone plss help me with this with good explanation!!!
LekaFEV [45]

Answer:

1. What happens when air is heated or cooled? ... So air, like most other substances, expands when heated and contracts when cooled. Because there is more space between the molecules, the air is less dense than the surrounding matter and the hot air floats upward.

Step-by-step explanation:

Hope this helps

7 0
2 years ago
What is the slope in this equation y=10+3x​
Ghella [55]

Answer:

the slope is 3

Step-by-step explanation:

4 0
3 years ago
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Write five pairs of integers (a, b) such that a÷b equals to - 6​
Volgvan

Answer:

(-6,1) (-12,2) (-18,3) (-24,4) (-30,5)

Hope this helps!

5 0
3 years ago
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