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ale4655 [162]
3 years ago
9

What is the value of f(x) = 2 • 2 x for f(–2)?

Mathematics
2 answers:
9966 [12]3 years ago
8 0

Answer:

- 8

Step-by-step explanation:

f ( x ) = 2 . 2 x

f ( - 2 )

= 2 . 2 ( - 2 )

= 2 x 2 x ( - 2 )

= - 8

pogonyaev3 years ago
6 0

Answer:

-8

Step-by-step explanation:

you know, all you have to do in such a case is simply taking the given -2 and put it, where there is "x" in the function expression and then calculate this. if necessary with a calculator.

2×2×x with x=-2 is

2×2×-2 = -8

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USING ORDER OF OPERATIONS ANSWER THE QUESTION ATTACHED!
NeTakaya
X = 8 because you can do 40 + 35= 5x + 35. then take away 35 from both sides and you are left with 5x = 40. If you divide both sides by 5, you will get 8
3 0
4 years ago
Read 2 more answers
If four times a number is increased by 15 the result is three less than six times the number find the number
skad [1K]

Answer:

9

Step-by-step explanation:

Let the number be n.

Then:  4n + 15 = 6n - 3

Subtract 4n from both sides, obtaining:  15 = 2n - 3

Now add 3 to both sides, obtaining 18 = 2n.  Then n = 9.

3 0
3 years ago
Easy Question! Find the number that should be added to the expression to create a perfect square trinomial: x^2 − 8x
marysya [2.9K]

Answer: The answer is C

Step-by-step explanation:

Well, an example of a perfect square trinomial would look like is:

                   a^2-2ab+b^2      or      a^2+2ab+b^2

So since we already know what a^2 is and what 2ab is we just have to find b^2

However, we would use the a^2-2ab+b^2 formula to solve this since we have a subtraction sign

7 0
2 years ago
|<br> 3. What is the next number in the sequence 20, 10, 5, 5/2
Vitek1552 [10]

Answer:

\large\boxed{\dfrac{5}{4}}

Step-by-step explanation:

a_1=20\\\\a_2=\dfrac{20}{2}=10\\\\a_3=\dfrac{10}{2}=5\\\\a_4=\dfrac{5}{2}\\\\a_5=\dfrac{\frac{5}{2}}{2}=\dfrac{5}{2}\cdot\dfrac{1}{2}=\dfrac{5}{4}

6 0
3 years ago
What is the volume of a right circular cylinder with a base diameter of 6 m and a height of 5 m?
ikadub [295]
Radius = 3 m
Cylinder Volume =<span>  </span><span>π <span>• r² • height
</span></span>
Cylinder Volume =<span>  3.14159 * 3^2 * 5

</span><span><span><span>Cylinder Volume =<span>  </span>141.372

</span></span></span>OR  PI * 45


6 0
3 years ago
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