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3 years ago

Which sentence is the most accurate definition of an identity?

Mathematics

2 answers:

olga2289 [7]3 years ago

7 0

The <em>correct answer</em> is:

An identity is an equation that is true for all real numbers.

Explanation:

An identity is a mathematical statement that is always true. It does not matter what numbers you substitute in for the variables, the result will be the same.

Goryan [66]3 years ago

7 0

I think the correct answer from the choices listed above is the second option. The most accurate definition of an identity is that an identity is an equation that is true for all real values in its domain. It is also an equality relation that no matter what values are chosen the equation is still true.

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I’m confused on this one

eduard

The question is asking you to find the measure of YZ's arc.

The arc of a circle is found by finding the central angle. In this case, that's angle YCZ. Remember that a circle's total degrees is 360. Since the angle that you are trying to find is 16% of the circle, you need to find 16% of 360.

360*0.16 = 57.6

The measure of arc YZ is 57.6 degrees.

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3 years ago

Write an expression that has four terms. your expression should have three different variables and a constant

Katyanochek1 [597]

A term is a number or variable in a math sentence (such as an expression or equation).

Example:

a + 2b + c + 5

5 is a constant; a,b, c are all variables.

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3 years ago

The area of another rectangle is x² + 5x + 6. If one side measures (x + 2), what is the measure of the other

tiny-mole [99]

L=x+2
We need B

$\\ \sf\longmapsto LB=Area$

$\\ \sf\longmapsto B(x+2)=x^2+5x+6$

$\\ \sf\longmapsto B(x+2)=(x+2)(x+3)$

Cancel x+2

$\\ \sf\longmapsto B=x+3$

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2 years ago

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larisa [96]

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3 years ago

Given the equation (x+a)^2(x-2)=x^3+bx^2+12x-72 find a and b

GaryK [48]

Isolate the variable by dividing each side by factors that don't contain the variable.

$a=- \frac{ x^{2}- \sqrt{( x^{3} + x^{2} b+12x-72(x-2)-2x} }{x-2} ,- \frac{ x^{2}+ \sqrt{( x^{3} + x^{2} b+12x-72(x-2)-2x} }{x-2}$

Solve for b by simplifying both sides of the equation then isolating the variabel.

$b= \frac{12}{x}+ \frac{72}{ x^{2} }-2+2a- \frac{4a}{x}+ \frac{ a^{2} }{x}- \frac{2a^{z} }{ x^{2} }$

Hopefully i helped ^.^ Mark brainly if possible

7 0

3 years ago