50 points!!!!!!!!! Solve for x and y!!! Please help i will give crown!

Mathematics

1 answer:

Svetllana [295]3 years ago

4 0

Answer:

it is an iscoceles triangle..

so I think it should be 45 and 45

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Prove that : 1/1-secA + 1/1+secA = -2cot^2A

irina1246 [14]

Answer:

Step-by-step explanation:

LHS = 1/1-secA + 1/1+secA

$= \frac{1*(1+Sec A)}{(1-Sec A)(1+Sec A)}+\frac{1*(1-Sec A)}{(1+Sec A)*(1-Sec A)}\\\\=\frac{(1+Sec A)}{1-Sec^{2} A}+\frac{(1-Sec A)}{1-Sec^{2} A}\\\\=\frac{1+Sec A+1-Sec A}{(1-Sec^{2} A)}\\\\= \frac{2}{(1-Sec^{2} A)}\\\\=\frac{2}{-(Sec^{2} A - 1)}\\\\= \frac{-2}{Tan^{2} A}\\\\= -2Cot^{2} A$

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2 years ago

Please help!!! Ill give brainliest

ale4655 [162]

Answer:

the answer is C

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2 years ago

Please help!!! As soon as possible.

disa [49]

Answer:

The SAS Postulate.

Step-by-step explanation:

In the diagram, the two triangles are congruent. This is because there are two pairs of congruent sides, with a congruent angle in between. The two angles between the sides are congruent because of the Vertical Angle Theorem.

Hope this helps!

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3 years ago

Read 2 more answers

Bianca reads 3/4 of a page of a book each minute. She has 25 pages left to read. How many pages will she read in 5 1/2 minutes?

Viktor [21]

Answer:

Bianca reads a page of a book in 1 ÷ (3/4) = 1 x (3/4) = 4/3 minutes;

We have 5 1/2 = 11/2 minutes;

She reads (11/2) ÷ (4/3) = (11/2) x (3/4) = 33 /8 = 4 1/8 pages;

Step-by-step explanation:

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