1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lunna [17]
1 year ago
11

Given k(x) = 8 - x, find k(-4).

Mathematics
2 answers:
Ket [755]1 year ago
8 0

Answer:

k(-4) = 12

Step-by-step explanation:

<h3>What is a function? </h3>

The most simple definition of a function is a set of inputs that have a given set of outputs.

Functions are often written as f(x) = "an expression"

Where "x" is the input and "the expression" results in an output. Whatever the input is you plug into "x" and replace all "x"s with the input

Here, we are given the function k(x) = 8 - x and we want to find k(-4)

This can be rewritten as k(-4) = 8 - x

==> replace all x's with -4

k(-4) = 8 - (-4)

==> remove parenthesis

k(-4) = 8 + 4

==> add 8 and 4

k(-4) = 12

Sunny_sXe [5.5K]1 year ago
5 0

Answer: K is equal to -3

Step-by-step explanation:

k = ?
x = -4

k(-4) = 8 - -4

Start off by applying the rule (two negatives equal a positive)

k(-4) = 8 + 4

Next add the like terms

k(-4) = 12

Then divide both sides by -4

k = -3

You might be interested in
Find the size of angle q if it is five times it's supplement​
tino4ka555 [31]

Answer:

<em>q =</em> 150

Step-by-step explanation:

Supplementary angles are angles that form a straight line and have a sum of 180 degrees, e.g. 120 and 60. If its supplement is thirty, and angle <em>q </em>is five times its supplement, it's 150. We know this is correct because 150 + 30 = 180, which is what we need for a supplementary angle.

7 0
3 years ago
T + 3t - 7 = 4t - 7???
kupik [55]
t+3t-7=4t-7\\\\4t-7=4t-7\ \ \ \ \ |subtract\ 4t\ from\ both\ sides\\\\-7=-7-TRUE\\\\infinitely\ many\ solutions;\\each\ number\ is\ a\ root\ of\ the\ equation\\\\t\in\mathbb{R}
6 0
4 years ago
Read 2 more answers
If you must correctly select 3 numbers, each from 0 to 9, what's the probability if the order is important?
xxTIMURxx [149]
If they have to be different then
10 numbers total
9*8*7=504 ways
1/504

if they can be same numbers
9*9*9
729
1/729
3 0
4 years ago
f(x) = ax^3 + bx^2 + cx + d In the polynomial above, a, b, c, and d are constants. If f(–5) = 3, which of the following must be
Amiraneli [1.4K]

The remainder when f(x) is divided by x + 5 is 3.

What is an Equations?

Equations are mathematical statements with two algebraic expressions on either side of an equals (=) sign. It illustrates the equality between the expressions written on the left and right sides. To determine the value of a variable representing an unknown quantity, equations can be solved. A statement is not an equation if there is no "equal to" symbol in it. It will be regarded as an expression.

we discovered that the polynomial equation is the equation that results from equating a polynomial function to zero. A linear equation results from equating a function to zero if it is a linear polynomial. We get a quadratic equation if the function is a quadratic polynomial.

f(x) = ax^3 + bx^2 + cx + d

In the polynomial above, a, b, c, and d are constants and f(-5)=3.

- 5 is the root of the given polynomial when remainder is 3 so we get the one factor of the given polynomial and that is,

x-(-5)=(x+5)

That is if f(-5)=3 it means that the remainder when f(x) is

divided by (x-(-5))=x+5 is 3

Hence, The remainder when f(x) is divided by x + 5 is 3

Learn more about equations, by the following link

brainly.com/question/2972832

#SPJ1

8 0
1 year ago
I need help this question?
Masja [62]

Answer:

Correct answer:  F. graph F or x ∈  |-5 ; 5| (including endpoints)

Step-by-step explanation:

Let us first define the absolute value:

| x |  = 1. { x with condition x ≥ 0 }

    or 2. { - x with condition x < 0 }

This is a linear inequality

1.  x ≤ 5  ∧  x ≥ 0   ⇒   0 ≤ x ≤ 5  or interval x ∈  |0 ; 5| (including endpoints)

2. - x ≤ 5  when we multiply both sides of the equation by -1 we get:

x ≥ -5 ∧ x < 0  ⇒  -5  ≤ x < 0 or interval x ∈  |-5 ; 0) (including -5)

The solution to this linear inequality is the union of these two intervals:

x ∈  |-5 ; 0) ∪ |0 ; 5|  ⇒ x ∈ |-5 ; 5| (including endpoints)

x ∈ |-5 ; 5| (including endpoints)

God is with you!!!

7 0
4 years ago
Other questions:
  • Which ordered pair is the solution to the system of equations?
    11·1 answer
  • 4 wholes 6/9 multiply by 2/5 is
    15·1 answer
  • Suppose the population of a certain city is 5615 thousand. It is expected to decrease to 4818 thousand in 50
    15·1 answer
  • PLEASE HELP , REWARD WILL BE GIVEN
    9·1 answer
  • Help!!!!!!!!!!!!!!!!!!
    13·1 answer
  • using powers of 10, which would be the best choice for the first number to subtract in the division problem 4860/15?
    8·1 answer
  • I need help with this question I got wrong in my quiz ?
    11·2 answers
  • PLEASE HELP ASAP. ILL GIVE BRAINLIEST IT'S DUE IN 20 MINUTES AND I'M STRUGGLING . HELP ME OUT PLEASE ​
    11·2 answers
  • Answer question please
    8·1 answer
  • QUESTION ON PIC THANK YOU
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!