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harina [27]
3 years ago
11

Domain and range pls

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0
Definition is

The domain of a function is the set of all values for which the function is defined, and the range of the function is the set of all values that f takes. They may also have been called the input and output of the function.)
yaroslaw [1]3 years ago
8 0

Answer:

domain = -7<u><</u>x  range= 0<u><</u>y

Step-by-step explanation:

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Select the correct answer.
mariarad [96]

Answer:

B.

f(x) and g(x) are closed under subtraction because when subtracted, the result will be a polynomial.

Step-by-step explanation:

f(x)-g(x)\\=(a_0+a_1x+a_2x^2...+a_nx^n)-(b_0+b_1x+b_2x^2...b_mx^m)

Assume m>=n WOLOG

=(a_0-b_0)+(a_1x-b_1x)+(a_2x^2-b_2x^2)+...+(a_nx^n-b_nx^n)-b_{(n+1)}x^{n+1}-...-b_{m-1}x^{m-1}-b_mx^m

=(a_0-b_0)+(a_1-b_1)x+(a_2-b_2)x^2+...+(a_n-b_n)x^n-b_{(n+1)}x^{n+1}-...-b_{m-1}x^{m-1}-b_mx^m

Are also a polynomial in general, but maybe in a different degree

Closure under subtraction means, for all polynomials, under the operation of subtraction, it also belongs to polynomials

6 0
3 years ago
0.2% of what number is 12?
Ratling [72]
Percent mean parts out of 100 0.2%=0.2/100=0.02/10=0.002/1=0.002 'of' means multiply 'what number'=x 'is' means '=' so 0.2% of what number is 12 0.002 times x=12 divide both sides by 0.002 x=6000 the number is 6000
3 0
3 years ago
Read 2 more answers
2. Devin is holding a skating party, The rental of the ice is $75, plus S3 Dex karex. Devi has
nasty-shy [4]

Answer:

43

Step-by-step explanation:

204-75=129

129/3=43

8 0
3 years ago
The graph of a proportional relationship contains the point (8, 4).
Softa [21]
\bf \qquad \qquad \textit{direct proportional variation}\\\\&#10;\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad  y=kx\impliedby &#10;\begin{array}{llll}&#10;k=constant\ of\\&#10;\qquad  variation&#10;\end{array}\\\\&#10;-------------------------------\\\\&#10;(\stackrel{x}{8}~~,~~\stackrel{y}{4})\implies &#10;\begin{cases}&#10;x=8\\&#10;y=4&#10;\end{cases}\implies 4=k8\implies \cfrac{4}{8}=k\implies \cfrac{1}{2}=k&#10;\\\\\\&#10;\boxed{y=\cfrac{1}{2}x}
6 0
3 years ago
The product of two numbers is 144 and their difference is 10. What is the sum of the two numbers
Lyrx [107]

Answer:

18+8=26

Step-by-step explanation:

Their sum would be 18 and * because they have  difference of ten. In order o get this you would have to multiply 1 X144 and so on.

6 0
3 years ago
Read 2 more answers
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