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IceJOKER [234]
3 years ago
5

I need to know the step by step on how to solve this question

Mathematics
1 answer:
cluponka [151]3 years ago
5 0
My father taught me a method that I call, 'throwing some thing over the wall'. There is a sample equation for the first picture that shows you how it works. It's a great way to help isolate the variable and I hope that it works for you. The second picture contains the answers I got through the use of this method. I'm sorry for the messy handwriting; I was on a bus.

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Which expression represents a factorization of 16a - 24ab
Mamont248 [21]

Find the factors of 16 and -24

16 = 8 x 2

-24 = 8 x -3

Note that both terms have "a" in it. Factor a out too

Answer:

8a(2 - 3b)

hope this helps

7 0
3 years ago
Evaluate the expression for r = 9.<br><br><br> 19 + r =
tatuchka [14]

Answer:

29

Step-by-step explanation:

because you add 19 and 9

8 0
3 years ago
Read 2 more answers
(05.01)A scale drawing of a bathroom is shown below: A rectangle is shown. The length of the rectangle is labeled 2 inches. The
Nostrana [21]
2 by 3.5 is the area for the model.
Every 1 is meant to represent 20, so multiply both 2 and 3.5 by 20.
2 * 20 = 40
3.5 * 20 = 70
40 * 70 = 2800 in^2
Every 12 inches is 1 foot so divide 2800 by 12^2 (one square foot), or 144.
2800/144 = 19.44444
Round down because .4 is less than half.
Approximately 19 ft^2

8 0
3 years ago
Read 2 more answers
Plz help
Elena-2011 [213]

Answer:

ITS C

Step-by-step explanation:

9(7−3)−8

=(9)(4)−8

=36−8

=28

4 0
2 years ago
Read 2 more answers
A woman walks due west on the deck of a ship at 3 mi/h. The ship is moving north at a speed of 23 mi/h. Find the speed and direc
Helen [10]

9514 1404 393

Answer:

  23.2 mi/h at N 7.4° W

Step-by-step explanation:

The velocity vectors of the woman and the ship form the legs of a right triangle. The hypotenuse of that triangle is the vector representing the woman's speed relative to the water.

The magnitude of the resultant velocity can be found using the Pythagorean theorem.

  r = √(3² +23²) = √538 ≈ 23.2

The given vectors are adjacent and opposite the angle of interest, so the tangent relation applies.

  Tan = Opposite/Adjacent

  tan(α) = 3/23

  α = arctan(3/23) ≈ 7.4°

The woman's speed relative to the water is about 23.2 mi/h. Her direction is about 7.4° west of north.

4 0
3 years ago
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