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Alecsey [184]
3 years ago
5

Please help me!!! 13 points

Mathematics
1 answer:
77julia77 [94]3 years ago
3 0
1. 16% or 25%
2. True
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The width of a rectangle measures (7d + 8f) centimeters, and its
Andre45 [30]

The expression which represents the perimeter, in centimeters, of the rectangle is; (18d +10f) centimetres.

<h3>Perimeter of a rectangle</h3>

Since the perimeter of a rectangle is given by the formula;

  • Perimeter, P = 2l + 2w.

In essence, Perimeter, P = 2(2d – 3f) + 2(7d + 8f)

  • P = 4d -6f + 14d +16f

  • P = 18d +10f.

Ultimately, the perimeter of the rectangle is; (18d +10f) centimetres.

Read more on perimeter of a rectangle;

brainly.com/question/17297081

4 0
2 years ago
Classify the following triangle. Check all that apply.
klasskru [66]

Answer:

Step-by-step explanation:

a. scalene  :  Reason: all angles and sides are different measurements.

f. acute : all the three angles are acute (Less than 90)

5 0
3 years ago
Read 2 more answers
20 points!!! first answer gets brainliast. Don't need too much explanation thank you!​
KengaRu [80]

Answer:

The answer to your question is below

Step-by-step explanation:

2. \sqrt{-128}                Just find the prime factors of 128 and simplify

   \sqrt{-2^{7}} = \sqrt{-2^{6} 2} = 2^{3}i \sqrt{2}

   8i\sqrt{2}

3.- \sqrt{-9} + \sqrt{-16}     Get the square roots and simplify

     3i + 4i

     7i

4.- None of the choices is equal to one, because the exponents are pair.

5.- 1/3x² + 10 = 7

    1/3x² = 7 - 10

    1/3x² = -3

         x² = -3(3)

         x² = -9

         x = ±3i

8 0
3 years ago
explain how mid-nineteenth-century American values and social trends are conveyed in The Voyage of Life paintings by Thomas Cole
Thepotemich [5.8K]

Answer:

Step-by-step explanation:

American values and social trends are conveyed in The Voyage of Life paintings by Thomas Cole. how did society influence the art

8 0
2 years ago
How to do a Pythagorean theorem question
Aleonysh [2.5K]
A Pythagorean theorem question is one that deals with the side lengths of a RIGHT triangle.

When solving a question you would use the formula, a^2 + b^2=c^2

A and B are both of the sides that aren’t the hypotenuse.

C is distinguishable from a and b as it is the side opposite from the 90 degree angle. (90 degree angles are formed by perpendicular lines)

Hope this helps :)
8 0
3 years ago
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