2 years ago

What is the perimeter of this triangle HELP!! A-4 B-20 C-40 D-60

Mathematics

1 answer:

Sophie [7]2 years ago

6 0

Answer:

60 and

x=4

Step-by-step explanation:

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Find the missing side lengths. Leave your answers as radicals in simplest form. Please help!! Due today

Nataly_w [17]

Answer:

$m = 10\sqrt 3$

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Step-by-step explanation:

Required

Find m and n

Considering the given angle, we have:

$\sin(60) = \frac{Opposite}{Hypotenuse}$

This gives:

$\sin(60) = \frac{m}{20}$

Make m ths subject

$m = 20 * \sin(60)$

$\sin(60) =\frac{\sqrt 3}{2}$

So, we have:

$m = 20 *\frac{\sqrt 3}{2}$

$m = 10\sqrt 3$

Considering the given angle again, we have:

$\cos(60) = \frac{Adjacent}{Hypotenuse}$

This gives:

$\cos(60) = \frac{n}{20}$

Make n the subject

$n = 20 * \cos(60)$

$\sin(60) =\frac{1}{2}$

So, we have:

$n = 20 *\frac{1}{2}$

$n = 10$

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How many 3/4 foot pieces of string can be cut from a piece of string 4 1/2 feet long

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3/4 foot is 9 inches, and 4 1/2 feet is 54 inches, so, 54/9 makes exactly 6 pieces of string.

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Solve the equation 5х + 8 – 3x = -10 x=-9 x=-1 x=1 x= 9

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The answer is -9. Have a great day

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