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faltersainse [42]
4 years ago
8

Helppppp meeeeeeeee Explain how to evaluate

Mathematics
1 answer:
poizon [28]4 years ago
6 0

A variable is a letter, for example x, y or z, that represents an unspecified number.

6 + x = 12

To evaluate an algebraic expression, you have to substitute a number for each variable and perform the arithmetic operations. In the example above, the variable x is equal to 6 since 6 + 6 = 12.

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BEST ANSWER GETS BRAINLIEST!!! HELP PLEASE.
Tpy6a [65]

Answer:

12³

Step-by-step explanation:

A number in the <u>exponential form</u> has a small number on the top right of the base, looking like this, if "x" is the exponent and "B" is the base.

Bˣ

Value of an number in exponential form:

"x" is the number of time you multiply the base, "B" by itself.

Examples:

3² = 3 * 3

3⁴ = 3 * 3 * 3 * 3

5¹ = 5

The formula for the volume of a cube is V = s³; "s" is the length of one side.

If the length is 12, substitute 12 for "s".

V = 12³            Volume of cube in exponential form

Other answers:

12 x 12 x 12

This expression also gives you the volume of the cube, but it is not in exponential form. It is in expanded form, (V = l x w x h; length times width times height).

3¹²

This option switches the base with the exponent.

12

This option only gives the length of one edge.

7 0
3 years ago
Consider the circle above. What is the approximate area of the circle?
Olin [163]

Answer:

The area of a circle is : π (Pi) times the Radius squared : A = π r 2 or, when you know the Diameter: A = (π /4) × D 2 or, when you know the Circumference: A = C 2 / 4 π

4 0
3 years ago
How do you write the equation 4y-5=6x in slope intercept form?
rodikova [14]

Answer:

4y=6x+5

Step-by-step explanation:

7 0
3 years ago
Rewrite in simplest terms: (-4x-9)+(-2x-7)
stealth61 [152]

When it tells us to write in the simplest terms, that means to <u>combine like terms! </u>

For example,

<u>4x and 2x</u> are <em>like terms </em>

and<u> 9 and 7 </u>are <em>like terms</em>!

---

let's combine them!

(-4x) + (-2x) = -6x

(-9) + (-7) = -16

When we put these two terms together, we get the answer ...

-6x - 16

----

Hope I helped! Comment if you have any questions about my answer!

-Gabby5792

6 0
3 years ago
Fred's resting heart rate is 50 bpm every minute he exercises his heart rate increases by 5 bpm how long will it take them to re
Mkey [24]
He would need to exercise for approximately 14 minutes to get to 120 bpm
4 0
3 years ago
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