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qaws [65]
3 years ago
10

Look at the to equations _3X + 6 = 21, _3X + 6 < 21. Which statement best describes the process used to solve the equations

Mathematics
2 answers:
Leto [7]3 years ago
7 0

Answer:

What are the options?

Step-by-step explanation:

Eduardwww [97]3 years ago
4 0
Follow order of operation. Subtract 6 from both sides then divide both sides by 3.
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At an angle of elevation 610
Vadim26 [7]

Answer:

The height of the cliff CD is approximately 539.76 m

Step-by-step explanation:

The given parameters are;

The first angle of elevation with which the captain sees the person on the cliff = 61°

The second angle of elevation with which the captain sees the person on the cliff after moving 92 m closer to the cliff = 69°

The angle made by the adjacent supplementary angle to the second angle of elevation = 180° - 69° = 111°

∴ Whereby, the rays from the first and second angle of elevation and the distance the ship moves closer to the cliff forms an imaginary triangle, we have;

The angle in the imaginary triangle subtended by the distance the ship moves closer to the cliff = 180° - 111° - 61° = 8°

By sine rule, we have;

AB/(sin(a)) = BC/(sin(c))

Which gives;

92/(sin(8°)) = BC/(sin(61°))

BC = (sin(61°)) × 92/(sin(8°)) ≈ 578.165 m

BC ≈ 578.165 m

The height CD = BC × sin(69°)

∴  The height of the cliff CD = 578.165 m × sin(69°) ≈ 539.76 m.

The height of the cliff CD ≈ 539.76 m.

5 0
2 years ago
what is equivalent to −3.5(2 − 3n) − 2.5n? A. −7 − 8n B. −7 + 8n C. −7 − 13n D. −7 − n(10.5 − 2.5) E. −7 + n(10.5 − 2.5)
inna [77]

−3.5(2 − 3n) − 2.5n

distribute

-7 -10.5n -2.5n

-7 -13n

Choice C

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3 years ago
2x - 2y= 6 <br> 3x + 2y = 9 <br> solve the system equation
creativ13 [48]

Step-by-step explanation:

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(3,0)

4 0
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