Which statement is true?

a. The equation - 3|2x + 1.2| = - 1 has no solution.

b. The equation 3.5|6x - 2| = 3.5 has one solution.

c. The equation 5|-3.1x + 6.9| = - 3.5 has two solutions.

d. The equation - 0.3|3 + 8x| = 0.9 has no solution.

Question

Mathematics

Keaton Klein

11 January, 09:37

Which statement is true?

a. The equation - 3|2x + 1.2| = - 1 has no solution.

b. The equation 3.5|6x - 2| = 3.5 has one solution.

c. The equation 5|-3.1x + 6.9| = - 3.5 has two solutions.

d. The equation - 0.3|3 + 8x| = 0.9 has no solution.

+3

Answers (1)

Know the Answer?

Belinda Roth · Answer 1

Hello,

Answer C is the only exact affirmation

1)

if - 3.1x+6.9>0 then |-3.1x+6.9|=-3.1+6.9

==>5 (-3.1+6.9) = - 3.5

==>-15.5x+34.5=-3.5

==>x=76/31

2)

if - 3.1x+6.9<0 then |-3.1x+6.9|=3.1x-6.9

==>5 (3.1x-6.9) = - 3.5

==>15.5x-34.5=-3.5

==>x=2

Which statement is true?a. The equation - 3|2x + 1.2| = - 1 has no solution.b. The equation 3.5|6x - 2| = 3.5 has one solution.c. The equation 5|-3.1x + 6.9| = - 3.5 has two solutions.d. The equation - 0.3|3 + 8x| = 0.9 has no solution.

Which statement is true?

a. The equation - 3|2x + 1.2| = - 1 has no solution.

b. The equation 3.5|6x - 2| = 3.5 has one solution.

c. The equation 5|-3.1x + 6.9| = - 3.5 has two solutions.

d. The equation - 0.3|3 + 8x| = 0.9 has no solution.