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4 years ago

What is the difference between algebraic expression and algebraic equation?

Mathematics

2 answers:

FinnZ [79.3K]4 years ago

6 0

Answer:

All equations have a equal sign while expressions have no equal sign. Some people say that equations and expressions are the same thing. That is not true.

Step-by-step explanation:

Paul [167]4 years ago

4 0

Answer:

Step-by-step explanation:

All equations have a equal sign while expressions have no equal sign. Some people say that equations and expressions are the same thing. That is not true.

Here’s an example.

Equations:

y=3x+3^2 (this is a linear equation)

f(x)=5x-3 (this is a Quadratic Equation)

expressions:

3x+3 (this is a simplified expression)

3x+4z-3a+-3(3x+2) (this is a extended expression)

Equations and expressions are not the same thing. Some people say this is true, but it is not. It may be true but equations have an equal sign. Expressions don’t have an equal sign because equations are able to be graphed and to evaluated. Expressions are able to be simplified and evaluated. Expressions and equations are different.

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If x+1/x=5 then find the value of (x^2+1/x^2) is?

Degger [83]

Recall that

$(a+b)^2=a^2+2ab+b^2$

So we have

$\left(x+\dfrac1x\right)^2=x^2+2+\dfrac1{x^2}$

Given that $x+\frac1x=5$ , we get

$x^2+\dfrac1{x^2}=5^2-2=\boxed{23}$

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3 years ago

23, 24, 25, 26, and 27

Debora [2.8K]

23. Option A: 4p + 175 = 375

24. $50 per monthly payment if the down payment is $175

25. Option C: 28x + 64 = 456

26. $14 for a haircut

27.
a. See the diagram attached. It was drawn on Google Drawing so obviously not to scale but you get the gist.

b.

Not quite sure what a verbal model is but with the diagram you should be able to describe it.

4 bookshelves, 2 on each side, in an entertainment center and a middle section of 30 inches wide all add up in its entirety to equal 90 inches.

c.

4x + 30 = 90

d.

4x = 60
x = 15

The bookcases are each 15 inches wide

5 0

3 years ago

Pls help?!?!? With this

zhenek [66]

Answer:

7 buses. 52÷ 8 = 6.5 so rounding up to 7

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3 years ago

A perpetuity pays $50 per year and interest rates are 9 percent. How much would its value change if interest rates decreased to

PtichkaEL [24]

Answer:

We conclude that its value change for 277.8$.

Step-by-step explanation:

We know that a perpetuity pays $50 per year and interest rates are 9 percent. We calculate how much would its value change if interest rates decreased to 6 percent. We know that

9%=0.09

6%=0.06

We get

\frac{50}{0.09}=555.5

\frac{50}{0.06}=833.3

Therefore, we get 833.3-555.5=277.8

We conclude that its value change for 277.8$.

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3 years ago

Which of the following is the reciprocal of 1 2/3

lana66690 [7]

The reciprocal is B. 3/5

6 0

4 years ago

Read 2 more answers