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3 years ago

What is the value of x?

Mathematics

1 answer:

Ira Lisetskai [31]3 years ago

5 0

Answer:

121°

Step-by-step explanation:

The angle with measure x is an exterior angle of the triangle.

The angles measuring 90° and 31° are the remote interior angles to the exterior angle.

<em>Theorem:</em>

<em>In a triangle, the measure of an exterior angle equals the sum of the measures of its remote interior angles.</em>

x = 31 + 90

x = 121°

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Can somebody explain PEMDAS (Order of Operations) to me?

s344n2d4d5 [400]

It's simple.

P - Parentheses

E - Exponents

D - Division

M - Multiplication

A - Addition

S - Subtraction

Whenever we have an expression or problem that involves these operations. We solve them according to the order given above.

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3 years ago

tanner and three neighborhood friends are buying a basketball hoop that costs 249.84. if the cost is divided equally, how much w

natita [175]

Tanner plus his friends equate to four people.

Divide 249.84 by four.
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3 0

3 years ago

Pls help as soon as possible

V125BC [204]

Answer: 161.6 seconds

Step-by-step explanation:

1. 8.216 + 3.652 = 11.868 (add together, this is for one car)

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3 0

3 years ago

7. A triangle has sides with lengths of 10 metres,

Kay [80]

Answer:

It is not a right triangle.

Step-by-step explanation:

We can prove this by Pythagorean theorem because it represents to a right triangle.

Pythagorean theorem:

a² + b² = c²

Now substitute the values.

Note: the longest side will represent c

So,

a = 10 m

b = 16 m

c = 20 m

10² + 16² = 20²

The objective here is to make them equal.

100 + 256 = 400

356 ≠ 400

They are not equal so it is not considered a right triangle.

7 0

3 years ago

3x+6/x^2-x-6+2x/x^2+x-12

Tanzania [10]

$\dfrac{3x+6}{x^2-x-6} + \dfrac{2x}{x^2+x-12}$

$= \dfrac{3(x+2)}{(x + 2)(x - 3)} + \dfrac{2x}{ (x - 3)(x + 4)}$

$= \dfrac{3}{(x - 3)} + \dfrac{2x}{ (x -3)(x + 4)}$

$= \dfrac{3(x+4)}{(x - 3)(x + 4)} + \dfrac{2x}{ (x -3 )(x + 4)}$

$= \dfrac{3(x+4) + 2x }{(x - 3)(x + 4)}$

$= \dfrac{3x+12 + 2x }{(x - 3)(x + 4)}$

$= \dfrac{5x+12}{(x - 3)(x + 4)}$

6 0

3 years ago