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AlekseyPX
3 years ago
15

Please help asap 32 pts

Mathematics
2 answers:
Over [174]3 years ago
6 0
-8-5(-4)
-8+20
f(-4)=12
slega [8]3 years ago
4 0

Answer:

f(-4) = 12

Step-by-step explanation:

Hello!

Here f(x) = -8 - 5x.  We want f(-4).

Subst. -4 for x in the above equation.  Then f(-4) = -8 -5(-4) = -8+20 = 12.

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X-3y-7=0 , 3x-3y-15=0 solve this using cross multiplication​
rewona [7]

Answer:

x = 4 , y = -1

Step-by-step explanation:

x - 3y = 7 -- (1)

3x - 3y = 15 -- (2)

Rewriting (1), x = 3y + 7 -- (1)'

Substituting (1)' into (2),

3 ( 3y + 7 ) - 3y = 15

9y + 21 - 3y = 15

6y = -6

y = -1 -- (3)

Substituting (3) into (1),

x - 3 ( - 1 ) = 7

x + 3 = 7

x = 4 -- (4)

According to (3) and (4),

x = 4 , y = -1

8 0
3 years ago
Consider the graph of the function f(x) = 25
trasher [3.6K]

Considering it's horizontal asymptote, the statement describes a key feature of function g(x) = 2f(x) is given by:

Horizontal asymptote at y = 0.

<h3>What are the horizontal asymptotes of a function?</h3>

They are the limits of the function as x goes to negative and positive infinity, as long as these values are not infinity.

Researching this problem on the internet, the functions are given as follows:

  • f(x) = 2^x.
  • g(x) = 2f(x) = 2(2)^x

The limits are given as follows:

\lim_{x \rightarrow -\infty} g(x) = \lim_{x \rightarrow -\infty} 2(2)^x = \frac{2}{2^{\infty}} = 0

\lim_{x \rightarrow \infty} g(x) = \lim_{x \rightarrow \infty} 2(2)^x = 2(2)^{\infty} = \infty

Hence, the correct statement is:

Horizontal asymptote at y = 0.

More can be learned about horizontal asymptotes at brainly.com/question/16948935

#SPJ1

3 0
1 year ago
Adding or subtracting fractions with different denominators
Bas_tet [7]

Step-by-step explanation: You can't continue on with the problem until the denominators are the same. So you need to find the LCD (Least Common Denominator). For example...

\frac{1}{2} +\frac{1}{3}  The LCD is six

\frac{1*3}{2*3}=\frac{3}{6} =\frac{1}{3}

\frac{1}{2}+ \frac{1}{3}= \frac{3}{6} +\frac{2}{6}

\frac{3+2}{6}= \frac{5}{6}

Hope this helps, have a BLESSED and wonderful day! :-)

-Cutiepatutie <3

8 0
3 years ago
Multiplying trinomial
sergiy2304 [10]
Okay so:

To multiply two trinomials, we will have to multiply each term of the second trinomial by the first term of the first trinomial and then repeat the multiplication by multiplying each term of the second trinomial by the second term of the first trinomial and finally, multiply each term of the second trinomial by the third term of the first trinomial. This can be done by either the horizontal method or the vertical method of multiplication. Now, group the like terms together and add them.
Given below are some of the examples in solving trinomials multiplication.


Trinomials can be applied various operations just as other polynomials, like - addition, subtraction, multiplication and division. Especially, we are going to study about multiplication of trinomials. The distributive method can be used to multiply two trinomials. In this case, multiplicand and the multiplier both are trinomials. Multiplication of the trinomials can be done by either the horizontal method or the vertical method of multiplication. Let us go ahead and learn how to multiply two or more trinomials together.

Alright Hope this helps you
6 0
3 years ago
D is the midpoint of AC. What is the length of AB?
Andreyy89

Answer:

18

Step-by-step explanation:

3x + 2 = 6x - 4

6 = 3x

2 = x

3(2) + 2 + 6(2) - 4 + 2

8 + 8 + 2

18

3 0
3 years ago
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