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Elis [28]
3 years ago
7

What is 9| - z/3| + 6 < 30

Mathematics
2 answers:
Reil [10]3 years ago
4 0
9|⁻¹/₃z| + 6 < 30
9|⁻¹/₃z| + 6 < ±30
9|⁻¹/₃z| + 6 < 30    or    9|⁻¹/₃z| + 6 > -30
9(¹/₃z) + 6 < 30    or    9(¹/₃z) + 6 > -30
     3z + 6 < 30       or       3z + 6 > -30
           - 6   - 6                       - 6     - 6
           3z < 24          or          3z > -24
            3      3                         3       3
             z < 8            or            z > -8

Solution Set: {z|z < 8 or z > -8} and (-∞, 8) or (-8, ∞)
Aleks [24]3 years ago
4 0
9|- \frac{z}{3} | + 6 \ \textless \  30 \\ \\ 9 \times  \frac{z}{3} + 6 \ \textless \  30 \\ \\ 3z + 6 \ \textless \  30 \\ \\ 3z \ \textless \  30 - 6 \\ \\ 3z \ \textless \  24 \\ \\ z \ \textless \   \frac{24}{3} \\ \\ z \ \textless \  8 \\ \\ Answer: z \ \textless \  8
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ioda

Answer:

D=m/v

=225g/15cm^3

=15g/cm^3

Step-by-step explanation:

The formula for calculating density is: density=mass/volume.

after collecting data you will see that all the data is already in the question and there's no need to convert any units. Divide the mass by the volume and you'll have the density in g/cm^3

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2 years ago
12x - 5 = 8x - x + 50<br> Help please show work and check the solution
Inga [223]

Answer:

x = 11

Step-by-step explanation:

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and check:

12(11) - 5 = 8(11) - (11) + 50 \\ 132 - 5 = 77 + 50 \\ 127 = 127

3 0
3 years ago
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Papessa [141]
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In the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° angle and the 40° angl
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Step-by-step explanation:

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