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3 years ago

6

A triangle has perimeter 63 cm, one side is 21 cm, and one median is perpendicular to an angle bisector. Find the other two side

lengths. I WILL MARK BRAINLIEST

1 answer:

Airida [17]3 years ago

8 0

Answer:

21 & 21

Step-by-step explanation:

It is an equilateral triangle, therefore all sides are equal

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The midpoint of AB = ([?],[ ])

3241004551 [841]

Answer:

(0,0)

Step-by-step explanation:

$x_{m}=\frac{-2+2}{2}=0\\y_{m}=\frac{-2+2}{2}=0\\$

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3 years ago

Which rational number equals 0 point 3 with bar over 3? Question 2 options: 1) 1 over 5 2) 1 over 3 3) 3 over 10 4) 3 over 5

Vedmedyk [2.9K]

9514 1404 393

Answer:

2) 1/3

Step-by-step explanation:

The repeating decimal can be converted to a fraction by multiplying it by 10^n and subtracting the original value. n = number of repeating digits. This process cancels all of the repeating digits, so you can find the equivalent fraction.

$x=0.\overline{3}\\\\10x -x=3.\overline{3}-0.\overline{3}=3\\\\x=\dfrac{3}{9}\\\\0.\overline{3}=\dfrac{1}{3}$

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Your calculator can help you answer this:

1/5 = 0.2

1/3 = 0.333.... (repeating) . . . . the number you're looking for

3/10 = 0.3

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2 years ago

URGENT MATH HELP BRAINLIEST

Lelechka [254]

Answer:

Step-by-step explanation:

a. This is a right triangle with two sides and one angle given.

-We apply Sine Rule to find the angle B:

$\frac{a}{Sin \ A}=\frac{b}{Sin \ B}=\frac{b}{Sin \ C}$

-The sides given are 10and 17 and the right angle 90°

$\frac{17}{Sin \ 90 \textdegree}=\frac{10}{Sin \ m\angle B}\\\\m\angle B=Sin^{-1}\frac{10}{(17/Sin \ 90\textdegree)}\\\\=36.03\textdegree$

Hence the angle B is 36.03°

b.We again use the sine rule to obtain the unknown angle w:

-15 corresponds to 90° and 9 corresponds to w°

$\frac{a}{Sin \ a}=\frac{b}{Sin \ B}\\\\\frac{15}{Sin \ 90\textdegree}=\frac{9}{Sin \ w\textdegree}\\\\\\\\w=Sin^{-1}(\frac{9}{15}), \ \ Sin \ 90\textdegree=1\\\\=36.87\textdegree$

Hence, the measure of w is 36.87°

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3 years ago

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The speed of a baseball pitcher’s fastball is 92.4 miles per hour. His fastball is 10% faster than his curveball. How fast is th

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Step-by-step explanation:

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