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ivanzaharov [21]
3 years ago
6

Evaluate the expression 3x (x+4), for x=5 show and explain your steps

Mathematics
2 answers:
dangina [55]3 years ago
6 0
Answer :135
Answer reasoning : since X equals five you add 5+4 for the parentheses then 3×5 then multiply the 9 and the 15.
djyliett [7]3 years ago
5 0

Answer:

27

Step-by-step explanation:

3 x ((5) + 4)

3 x 9 =27

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FIND THE ANGLE OF DEPRESSION. PLS HELP. I WILL MARK YOU A BRAINLEST
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Answer:

62.2° (or 1.1 rad)

Step-by-step explanation:

Let’s call the three points A Allen’s house, B Bob’s house, T the traffic light and α “angle of depression”.

Since we have a right triangle BTA, let’s first find out the angle ∡BTA based on its opposite side AB = 7 km and the hyponenuse TA = 15 km.

∡BTA = arcsin(AB/TA) ≈ arcsin(0.4667) ≈ 0.4855 rad or 27.82°

Now since the text says the connecting line TA “is vertical to the road”, α is the rest of the right angle when ∡BTA subtracted.

α ≈ 90° - 27.82° = 62.18°

or α ≈ 0.5 π rad - 0.4855 rad ≈ 1.09 rad

See above for properly rounded values.

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B is the answer to the question
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Studentka2010 [4]

Answer:

YES

Step-by-step explanation:

both equal 5 when divided.

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4 years ago
Sheila is two years older than her brother.of sheila's brother age is c
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Step-by-step explanation:

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