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Veseljchak [2.6K]
3 years ago
6

Which of the following expressions has a solution of -2

Mathematics
1 answer:
stealth61 [152]3 years ago
6 0

Answer:

j. 1st, 2nd and 3rd

Step-by-step explanation:

hope it helps

please mark as Brainliest

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1.<br> Simplify the expression:<br> 4w3z4 + 3w3 + 4z4 + 2w3z4 + z
Mrac [35]

Answer:72wz+17z+9w

Step-by-step explanation:

You multiply them together  them add to simplify them.

8 0
3 years ago
Find the value of x that makes line m parallel to line n.​
evablogger [386]

Answer: <em>x</em> = 20

Step-by-step explanation:

   If line <em>m</em> is parallel to line <em>n</em>, the two angles given will be congruent because they will be alternate exterior angles (which are congruent).

  This means we will set them equal to each other and solve for <em>x</em>.

Given:

(4<em>x</em> - 23) = (2<em>x</em> + 17)

Add 23 to both sides of the equation:

4<em>x</em> = 2<em>x</em> + 40

Subtract 2<em>x</em> from both sides of the equation:

2<em>x</em> = 40

Divide both sides of the equation by 2:

<em>x</em> = 20

4 0
2 years ago
Tell whether the transformation is a dilation,
valina [46]

Answer:the answer is c

Step-by-step explanation: I am 99.9% sure

4 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST find the minimum value of the parabola y=x^2+42/5
Masja [62]

Answer:

Minimum value = (0, \frac{42}{5} )

  1. Set up the function in general form
  2. Determine the direction of the graph
  3. Calculate -b/2a
  4. Find the corresponding f(x) value
  5. Write your quadratic function in standard or vertex form

Please Mark Brainliest If This Helped!

5 0
2 years ago
Please help. Im dying for the explanation. I will mark you brainalist.
AlekseyPX

Step-by-step explanation:

Given that the mean of the numbers is 12

mean =  \frac{sum \:  \: of \: observations}{total \: number \: of \: observations}

so here

let's that one as x and another one as 2x since it is given that one is twice the other

Therefore we get

mean =  \frac{13 + x + 4 + 16 + 6 + 2x}{6}

Given mean = 12

12 =  \frac{39 + 3x}{6}

72 = 39 + 3x

3x = 33

x = 11

Hence it's 11 and 22

5 0
2 years ago
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