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3 years ago

The angles in a triangle are 100, 40, and 40 degrees. Classify the triangle by its angles and sides.

Mathematics

1 answer:

lara [203]3 years ago

8 0

Answer:

F. Obtuse isosceles

Step-by-step explanation:

Since we have an angle that is 100 degrees, we have an obtuse angle

We have two angles that are 40, which means we have two sides that are equal length, because two angles have the same measure. That means it is isosceles

The triangle is an obtuse isosceles

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3 years ago

Find an equation for y in terms of x

snow_tiger [21]

Answer:

y = $\frac{9}{x^2}$

Step-by-step explanation:

Given y is inversely proportional to x² then the equation relating them is

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3 years ago

(7x-1)+(13x-19)=180 solve for x

elixir [45]

Answer:

x = 10

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Step-by-step explanation:

Step 1: Define Equation

(7x - 1) + (13x - 19) = 180

Step 2: Solve for x

Combine like terms: 20x - 20 = 180
Isolate x term: 20x = 200
Isolate x: x = 10

Step 3: Check

Plug in x into the original equation to verify it's a solution.

Substitute in x: (7(10) - 1) + (13(10) - 19) = 180
Multiply: (70 - 1) + (130 - 19) = 180
Subtract: 69 + 111 = 180
Add: 180 = 180

Here we see that 180 does indeed equal 180.

∴ x = 10 is the solution to the equation.

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3 years ago

Find the value of x. 12 12 x = [?]

daser333 [38]

Step-by-step explanation:

step 1. The segment x is made up of 2 equal lines which are connected in the middle to another segment 12 units long.

step 2. the intersection of these two segments must create a 90° angle because the two lines are equal.

step 3. The lower segments are identical to the upper segments.

step 4. therefore x = 11(2) = 22.

8 0

3 years ago