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3 years ago

Solve for the missing side in the special right triangle.

Mathematics

2 answers:

nevsk [136]3 years ago

6 0

Answer:

Step-by-step explanation:

If I remember how to solve these questions correctly, if there is a triangle that is 45 degrees, the hypotenuse will be times the square root of 2 of the other two sides (which are equal to eachother). Hope this helped!

aniked [119]3 years ago

3 0

Answer:

$\cos(45 \degree) = \frac{3 \sqrt{2} }{x} \\ x = \frac{3 \sqrt{2} }{ \cos(45 \degree) } \\ x = 6$

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Which statement is true? Select all that apply.

julsineya [31]

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3 years ago

How can csc^2-cot^2 = 1?

Softa [21]

ANSWER

By simplifying the left hand side using the Pythagorean Identity.

EXPLANATION

The given identity is

$\csc^{2} (x) - \cot^{2} (x) = 1$

Take the left hand side and simplify to get the right hand side.

$\csc^{2} (x) - \cot^{2} (x) = \frac{1}{\sin^{2} (x)} - \frac{ \cos^{2} (x)}{\sin^{2} (x)}$

Collect LCM for the denominators.

$\csc^{2} (x) - \cot^{2} (x) = \frac{1 - \cos^{2} (x)}{\sin^{2} (x)}$

Recall the Pythagorean Identity.

$\cos^{2} (x) + \sin^{2} (x) = 1$

This implies that:

$1 - \cos^{2} (x) = \sin^{2} (x)$

We substitute this to get,

$\csc^{2} (x) - \cot^{2} (x) = \frac{\sin^{2} (x)}{\sin^{2} (x)}$

$\csc^{2} (x) - \cot^{2} (x) = 1$

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3 years ago

URGENT PLEASE !!!! Please answer correctly !!Will mark Brianliest !!!!!!!!!!

nirvana33 [79]

Answer:

Step-by-step explanation:

Square Root of 85

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3 years ago

One of the same side angles of two parallel lines is 20° smaller than the other one. Find all angles.

Elden [556K]

Answer: 80 and 100

Step-by-step explanation:

180/2=90

90+10=100

90-10=80

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3 years ago

Read 2 more answers

someone pls help!!! Complete the proofs using the most appropriate method. Some may require CPCTC. I will give brainly

Softa [21]

Answer:

I can't write out the whole proof here.

it bisects, so we know BCA is congruent to DCA

abc being congruent to adc is given

AC = AC because it is a singular side

AAS

then the lines are congruent by CPCTC

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3 years ago