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Nataly [62]
3 years ago
9

Please help me find BD

Mathematics
1 answer:
Tanzania [10]3 years ago
8 0

9514 1404 393

Answer:

  14 units

Step-by-step explanation:

The angle bisector divides the sides proportionally, so you have ...

  (x+4)/8 = (2x+1)/12

  3(x +4) = 2(2x +1) . . . . . . multiply by 24

  3x +12 = 4x +2 . . . . . . . . eliminate parentheses

  10 = x . . . . . . . . . . . subtract (3x+2)

Then BD = x+4 = 10 +4.

The length of BD is 14 units.

_____

<em>Additional comment</em>

The "triangle" cannot exist, as the side lengths are shown as 8, 12, and 35. The long side is too long. Nice math; bad geometry.

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a leaf hangs from a branch 12 feet in the air. it falls to the ground at a rate of 0.25 feet per second. which graph could repre
Kipish [7]
For this case we have an equation of the form:
 h (t) = (1/2) * (a) * (t ^ 2) + v0 * t + h0&#10;
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 a: acceleration
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 h (t) = (1/2) * (- 32) * (t ^ 2) + 0.25 * t + 12&#10;
 Rewriting we have:
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 Note: see attached image
 Answer:
 
h (t) = -16t ^ 2 + 0.25 * t + 12

7 0
3 years ago
Determine the measures of the angles marked with letters​
Arturiano [62]

1) Now,

a + 27° = 90° (right angle triangle)

◆ a = 63°

2) Now,

b + b + b = 90° (right angle triangle)

or, 3b = 90°

◆ b = 30°

3) Now,

c + c + 40° = 90° (right angle triangle)

or, 2c = 90° - 40°

or, c = 50°/2

◆ c = 25°

4) Here,

◆ e = 41° (vertically opposite angle)

◆ f = 82° ( vertically opposite angle)

Now,

d + e + f = 180° (straight angle)

or, d + 41° + 82° = 180°

or, d = 180° - 123°

◆ d = 57°

Then,

◆ g = d = 57° (vertically opposite angle)

It is all correct answer...

I hope u understand...

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7 0
2 years ago
A circle with radius of 1 cm sits inside a 3 cm x 4 cm rectangle.
White raven [17]

The area of shaded-region is 8.86 cm^2

Step-by-step explanation:

We can see that there is a circle and a triangle in the given figure

In order too find the area of shaded region, we have to find the area of rectangle and circle first. The area of the shaded region will be obtained by subtracting the area of circle from the area of rectangle.

So,

<u>Area of circle:</u>

Radius = r = 1 cm

So,

A_c = \pi r^2\\= 3.14 * (1)^2\\= 3.14*1\\= 3.14\ cm^2

<u>Area of rectangle:</u>

Length of rectangle = l = 4 cm

Width of rectangle = w = 3 cm

So,

A_r = l*w\\= 4 *3\\=12 cm^2

Now,

Area\ of\ shaded-region = A_r - A_c\\= 12 - 3.14\\=8.86\ cm^2

The area of shaded-region is 8.86 cm^2

Keywords: Area, shaded regions

Learn more about area at:

  • brainly.com/question/10435836
  • brainly.com/question/10541435

#LearnwithBrainly

4 0
3 years ago
Analysis of the voltage in certain types of circuits involves terms of the form sin(nw^0t-90 degrees) where n is a positive inte
mel-nik [20]

Answer:

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5 0
4 years ago
Read 2 more answers
Need Help!!!!!!!!!!!!!
zepelin [54]

the thing to do here is multiply base and height in this case 2yd and 2.3yd, that's how I would solve it.

3 0
3 years ago
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