2 years ago

Someone help me with finding the measure of each angle

Mathematics

1 answer:

Nataly [62]2 years ago

5 0

IKNOW THE ANSWER FOR THE FIRST ONE!!!! THE ANSER IS 92 >:D

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triangle ABC is isosceles, angle B is vertex angle , AB = 20x -2, AC =25x, and BC =12 x +20. Find x and the length of each side

lisov135 [29]

Length of AB = 18. 92

Length of AC = 26. 15

Length of BC = 32. 552

<h3>How to determine the sides of the triangle</h3>

Using the Pythagorean theorem, we have that

$(20 x-2)^2 = (12x + 20)^2 + (25x)^2$

Expand the bracket

$400x^2- 4 = 144x^2 + 400 + 625x^2$

Collect like terms

$400x^2 - 144x^2 - 625x^2 = 400 + 4$

$-369x^2 = 404$

Make x^2 subject

$x^2 = \frac{404}{369}$

$x = \sqrt{1.0948}$

$x = 1. 046$

Thus,

Length of AB = 20x -2 = 20(1. 046) - 2 = 18. 92

Length of AC = 25x = 25* 1.046 = 26. 15

Length of BC = 12x + 20 = 12(1. 046) + 20 = 32. 552

Learn more about isosceles triangles here:

brainly.com/question/1475130

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8 0

1 year ago

George is building a table out of boards that are 3.75 inches wide. He wants the table to be at least 36 inches wide. How many b

balu736 [363]

Answer:

10 whole boards

Step-by-step explanation:

1. 36 divided by 3.75 = 9.6

2. Round to the nearest whole number

3. 9.6 rounded = 10

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2 years ago

I am thinking of a number. if you divide my number by 3 and add -3 you get 4 what is my number

Butoxors [25]

Your number is 21.
21 divided by 3 is 7. 7 plus -3 is 4.

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2 years ago

Solve for x. 58x+21.9=105

solong [7]

Answer:

1.43

Step-by-step explanation:

I am sorry if i am wrong

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2 years ago

PLEASE HELP!! Use any method to add or subtract <br> 5/7 - ( 3/4 + 3/14 ) =

maria [59]

<span>-0.25 if that is the right method.
</span>

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2 years ago

Read 2 more answers