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3 years ago

Help me on isosceles and equilateral triangles problems. Find the value of x in the triangle shown below.

Mathematics

1 answer:

trapecia [35]3 years ago

3 0

Answer:

x° = 61°

Step-by-step explanation:

Both of the "unknown" angles in the triangle are equal, since their opposite sides have equal lengths. (The triangle is isosceles.) The sum of angles in a triangle is 180°, so we have ...

58° + x° + x° = 180°

2x° = 122° . . . . subtract 58°, collect terms

x° = 61° . . . . . . . divide by 2

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Simplify completely the quantity 4 times x to the third power plus 5 times x to the 2nd power plus 3 times x all over x. (2 poin

julia-pushkina [17]

We start with

$\dfrac{4x^3+5x^2+3x}{x}$

We can factor x at the numerator:

$\dfrac{x(4x^2+5x+3)}{x}$

So, assuming $x\neq 0$ (otherwise the expression would make no sense) we can simplify it:

$\dfrac{x(4x^2+5x+3)}{x} = 4x^2+5x+3$

This equation has no roots, so we can't simplify it any further.

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3 years ago

A recipe calls for 3 cups of sugar for every 5 cups of water. How many cups of sugar are needed for 25 cups of water?

nasty-shy [4]

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3 years ago

Yo im not good at this stuff, can someone help me?

Kazeer [188]

Answer:

21 kWh

Step-by-step explanation:

1. Subtract 25% from the original amount.

25% of 28 kWh is ...

0.25 × 28 kWh = 7.00 kWh

Subtracting this from 28 kWh, we find the usage after reduction to be ...

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(3/4) × (28 kWh) = 3·(7·4)/4 kWh = 3·7 kWh = 21 kWh

Mario must reduce his usage to 21 kWh or less.

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3 years ago

Define measure of an angle

Alexandra [31]

Answer:

this is the define of measure of an angle

Step-by-step explanation:

hope it help you