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salantis [7]
3 years ago
8

Find the difference of functions s and r shown below. r(x) = –x² + 3x s(x) = 2x + 1 (s – r)(x) =

Mathematics
2 answers:
arlik [135]3 years ago
8 0

Answer:

(s-r)(x)=x^2-x+1

Step-by-step explanation:

  • So  we subtract functions the same way we do numbers, ergo
  • (s-r)(x)=s(x)-r(x)\\ (2x+1)-(-x^2+3x)\\2x+1+x^2-3x\\x^2+2x-3x+1\\(s-r)(x)=x^2-x+1
Andru [333]3 years ago
7 0

Answer:

There are 2 parts of the equation

The first answer to answer is (2x+1)--(-x2+3x)

The second answer is x2--x+1

Step-by-step explanation:

I hope you have a wonderful day!!

Love you all!!

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Lf g(x) = x3 - 5 and h(x) = 2x - 2, find g(h(3)).
White raven [17]

Answer: g(h(3)) = 59

Step-by-step explanation:

Well if its x^3 I assume it is because you wrote other coefficients before the variable.

2(3) - 2 = 6-2 = 4

So 4 is the x input for h(x)

4^3 -5 = 64-5 = 59

7 0
3 years ago
Which equation is true when n = 4?<br> A<br> 2n = 6<br> Bn+3 = 7<br> 9- n = 13
kari74 [83]

Answer:

The answer is B. n+3=7

Step-by-step explanation:

^^^^^^^

5 0
3 years ago
Read 2 more answers
Is this answer right?? If not what’s the real answer? I’m trying to practice for my STAAR.
Ierofanga [76]

35

Area of rectangle

21m^2

Area of one triangle

divide length of 7 by 2 (3.5)

gives you length b (unknown side that is not hypotenuse)

then multiply by width of triangle (4)

3.5 * 4 = 14

and in this situation there is no need to divide by two, because you essentially have one full square from both the triangles. this only works when both triangles are the same.

add the area of the rectangle

14+21= 35

35m^2

8 0
2 years ago
Solve the equation 4n2 − 16n − 84 = 0 by completing the square.
melomori [17]

4n² - 16n - 84 = 0

Multiply both sides by 1/4 :

n² - 4n - 21 = 0

Add 21 to both sides:

n² - 4n = 21

Complete the square by adding 4 to both sides:

n² - 4n + 4 = 25

(n - 2)² = 25

Solve for n :

n - 2 = ± √25

n - 2 = ± 5

n = 2 ± 5

Then n = 2 + 5 = 7 or n = 2 - 5 = -3.

8 0
2 years ago
Change 93 to base 4 ​
LuckyWell [14K]
93 in base 10 converted into base 4 would 1131
6 0
2 years ago
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