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Gnom [1K]
3 years ago
14

Please help! Are these triangles similar?

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
6 0

Answer:

no

Step-by-step explanation:

every triangle adds to 180 degrees

each triangle has different degrees that add to 180 along with different hypontuse

KIM [24]3 years ago
3 0
The answer is NOthe triangle is not similar
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A bag contains 5 red marbles, 6 blue, and 4 green. If three marbles are drawn what is the probability to the nearest 10th all th
fredd [130]

Answer: 4.4%

Step-by-step explanation:

Probability of drawing blue first is 6 in 15

Assuming you get that one, the second is 5 in 14 (as you've taken a blue one out)

If that's successful you have 5 in 13 chances of pulling another blue

As you want the first AND second AND third to happen, you multiply them…

(6/15)*(5/14)*(4/13) = 0.04395

So as a percentage, to the nearest tenth is 4.4%

8 0
3 years ago
What is the equation of the line passing through the points  (Two-fifths, StartFraction 19 Over 20 EndFraction)and  (one-third,
Vinil7 [7]
<h3>4x - 8y = -6 is the equation of line in standard form</h3>

<em><u>Solution:</u></em>

<em><u>The equation of line in point slope form is given as:</u></em>

y - y_1 = m(x-x_1)

Where, m is the slope of line

<em><u>The slope of line is given as:</u></em>

m = \frac{y_2-y_1}{x_2-x_1}

From given,

(x_1, y_1) = (\frac{2}{5} , \frac{19}{20})\\\\(x_2, y_2) = (\frac{1}{3} , \frac{11}{12})

<em><u>Substituting the values we get,</u></em>

m = \frac{\frac{11}{12} - \frac{19}{20}}{\frac{1}{3} - \frac{2}{5}}\\\\Simplify\\\\m = \frac{-8}{240} \times \frac{15}{-1}\\\\ m = \frac{120}{240}\\\\m = \frac{1}{2}

\text{Substitute } m = \frac{1}{2} \text{ and } (x_1, y_1) = (\frac{2}{5} , \frac{19}{20}) \text{ in eqn 1 }

y - \frac{19}{20} = \frac{1}{2}(x - \frac{2}{5})\\\\y - \frac{19}{20} = \frac{x}{2} - \frac{1}{5}\\\\\frac{x}{2} - y = - \frac{19}{20} + \frac{1}{5}\\\\\frac{x}{2} - y = \frac{-15}{20}\\\\Simplify\\\\y = \frac{1}{2}x + \frac{3}{4}

In standard form,

y = \frac{4x+6}{8}\\\\8y = 4x + 6\\\\4x - 8y = -6

Thus the equation of line is found

3 0
3 years ago
Read 2 more answers
Write the slope-intercept form of the equation of the line given a slope of 3 and a y-intercept
Eduardwww [97]
Y=3x-4

There you go my friend. Please consider brainliest
5 0
3 years ago
If a = 2 cm and r = 3.4 cm, find the area of the regular pentagon.
cricket20 [7]

Answer:

Area = 3.4\ cm^{2}

Step-by-step explanation:

Assume a pentagon has equal length where a be the side of the pentagon and r be the apothem of the pentagon.

Given:

Sides of pentagon a=2\ cm

apothem of pentagon r=3.4\ cm

The area of the pentagon formula is given below.

A = \frac{1}{2}\times bh

Where b = length of the base or side

And h = height of apothem

Now, we substitute side and apothem length in above formula.

A = \frac{1}{2}\times 2\times 3.4

A = 3.4\ cm^{2}

Therefore, the area of the pentagon is 3.4\ cm^{2}

3 0
3 years ago
URGENT!!! Amy, on a jog, runs in a straight line for 3 miles. She then changes direction, heading 50 degrees to the right and ru
Mariana [72]

Answer:

8.2500000000 miles

Step-by-step explanation:

I drew a triangle to illustrate the reference triangle.

So, Amy ran from summit A for 3 miles then turned to her right by 50 degrees (creating angle B of 130 degrees), and runs for another 6 miles.

Based on the Cosines Law, we have:

cos(B) = \frac{c^{2} + a^{2}  - b^{2} }{2 * c * a}

If we isolate b, we have the following formula.

b = \sqrt{a^{2} + c^{2} - 2 * a * c * cos(B) } \\ \\b = \sqrt{6^{2} + 3^{2} - 2 * 6 * 3 * cos(130) } = 8.25

So, as she stops at summit C, she's 8.25 miles away from her starting point.

4 0
3 years ago
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