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vazorg [7]
3 years ago
5

How many solutions does the equation |x+7|=0 have?

Mathematics
2 answers:
DanielleElmas [232]3 years ago
7 0

Answer:

one solution.

Step-by-step explanation:

The given equation is |x+7|=0

When we eliminate the absolute sign then we'll get below two equations

x + 7 = 0                            and                  x + 7 = -0

Let us solve these two equations.

x + 7 = 0

Subtract 7 to both sides

x = -7

Now, solve the second equation

x + 7 = -0

Subtract 7 to both sides

x = -0-7

x=-7

Therefore, the solution is x = -7 and hence, we can conclude that the equation |x+7|=0 have only one solution.

Daniel [21]3 years ago
3 0

The equation has one solution, x = -7.

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If 25 students took an exam and 4 of the students that took the exam failed, what percent of the students passed?

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The edge of a cube measures 3.5 x 10 ^ -2 meters. What is the volume of the cube in cubic meters? WRITE Your ANSWERS IN SCIENTIF
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The volume of given cube is: 4.29 * 10^{-5} cubic meters

Step-by-step explanation:

Volume of a cube is given by:

V = a^3

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Putting the value of edge

V = (3.5*10^{-2})^3\\V = 42.875 * (10^{-2})^3\\V = 42.9 * 10 ^{-2*3}\\V = 42.9 * 10^{-6}\\V = 4.29 * 10 * 10 ^{-6}\\V = 4.29 * 10^{-5}\ cubic\ meters

The volume of given cube is: 4.29 * 10^{-5} cubic meters

Keywords: Volume, cube, scientific notation

Learn more about scientific notation at:

  • brainly.com/question/10703930
  • brainly.com/question/10772025

#LearnwithBrainly

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