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4 years ago

What is the difference between an algebraic expression and a numerical expression

2 answers:

7 0

An algebraic expression is a mathematical phrase that includes at least one or more variables. A variable is a symbol, usually a letter, that represents the value(s) of a variable quantity.

Lorico [155]4 years ago

5 0

The difference is tha in algebraic expression, there are variables (ex. 6x + 3x) unlike numerical expression doesn't contain a variable; its just numbers.

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Which expression gives the solutions of -5+2x^2=-6x

pashok25 [27]

I hope this helps you

4 0

4 years ago

Which CANNOT be used to prove that lines in and n are parallel?

Misha Larkins [42]

C.24 is supplementary to 7

4 0

3 years ago

The total of two numbers is 28. Four times the smaller number is 7 more than three times the larger number.

navik [9.2K]

Let's define:
$x \ \textless \ y$

So, you can set up a system of equations:
$x + y = 28$
$4x = 7 + 3y$

Now, to solve for both of those values, solve the system of equations:
$x = 28 - y$
$4(28-y) = 7+3y$
$122-4y=7+3y$
$115 -4y = 3y$
$115 = 7y$
$y = 16.43$

Now, plug that y-value into the first equation to solve for x:
$x + 16.43=28$
$x = 11.57$

Now, we have both the values. The smaller value (x) = 11.57 and the bigger value (y) = 16.43.

3 0

4 years ago

If h(x) = 6 - X, what is the value of (han)(10)?

Bingel [31]

Answer:

Step-by-step explanation:

I think you meant, "what is the value of h(10)." If that's the case, then

h(10) = 6 - 10 = -4

7 0

3 years ago

What are the domain and<br> range of the function below?

Olin [163]

Answer:

2nd answer option

Step-by-step explanation:

the domain is the interval or set of valid x values. the range is the same for valid y values.

so, what is the smallest x value we see in the functional graph ?

x = 0

there is no functional value for any x smaller than that.

and then the function goes on and on to the right in all eternity. that means it goes to infinity.

so, domain = [0, infinity)

please consider the round bracket at the end, because "infinity" is not a number.

now for the range and the y values.

in this case I start to ask for the largest y value.

y = 4

for no x value do we get a larger y value.

but it goes down and down in all eternity, going also to infinity, but -infinity (down is negative for y).

so, the range = (-infinity, 4]

"-infinity" is also not a number and therefore not included (hence the round bracket).

5 0

2 years ago