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Norma-Jean [14]
3 years ago
12

A classmate said 4(3x) = 12x, is this student correct?

Mathematics
2 answers:
myrzilka [38]3 years ago
4 0

Answer:

its right

Step-by-step explanation:

mote1985 [20]3 years ago
3 0

Answer:

Step-by-step explanation:

yes its correctt

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1. Which expresses the given inequality in interval notation?
Digiron [165]
1)  x < 4  the answer is  <span>  Option C: x E(-infinity,4)  (it is strict)
2)  </span>2x +6 < 8, and  <span>2x < 8 - 6 = 2, and x<2/2=1
the answer is </span>
<span>D. x E (-infinity, 1)
</span>3)  <span>X greater than or equal to 8 and  x <  - 4
</span>X greater than  8  means x ≥ 8
so we have x ≥ 8 and  <span> x <  - 4
so the answer is  </span>
<span>B. x E (-4,8]
</span> 4) 
7 > x + 6 or x -2 greater than or equal to 3,
<span>7 > x + 6 or x -2 ≥ 3
</span>
<span>7 -6> x, and 1>x
</span>
x -2 ≥ 3   x<span>≥ 3+2=5
finally
</span>x<1 and x≥5   

the answer is
<span>C.x E (1,5]
5)
</span>
|x+3| > 12, 
|x+3| = { -(x+3) if <span>x+3<0 or  </span><span>(x+3)  if </span><span>x+3>0}</span>

so, it is  -(x+3)>12 is equivalent to (x+3)< -12  or (x+3)>12
the answer is
<span>B. x + 3 > 12 or x + 3 <-12</span>






7 0
3 years ago
Read 2 more answers
What is the area of a circle if the circumference is 29
Kruka [31]

Answer:

67 square units

Step-by-step explanation:

Circumference/pi = diameter

29/3.14 = 9.24

Radius = 9.24/2 = 4.62

A = pi * r^2

A = 3.14 * 4.62^2 = 67 square units

8 0
2 years ago
HELP ME WITH MATH PLS
Zanzabum

Answer: x = -\frac{10}{3} - \frac{2y}{3}

Step-by-step explanation:

-3x  -2y = 10      Get x alone by add 2y to both sides

      +2y    +2y

-3x = 10  + 2y    Divide both sides by -3

x = -10/3  - 2y/3

4 0
4 years ago
Variables and Inequalities
sleet_krkn [62]

Answer:

  1. x>4
  2. m <2
  3. x>2
  4. x>-6

hope it helps pls mark braiest

5 0
4 years ago
Which expression is equivalent to 3(5 + 6)?<br><br> 8 + 9<br> 8 + 6<br> 15 + 18<br> 15 + 6
Wewaii [24]
3(5 + 6)


15 + 18 is your answer

Distribute the 3 to both 5 and 6

3 x 5 = 15

6 x 3 = 18

15 + 18 is your expression

hope this helps
8 0
3 years ago
Read 2 more answers
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