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3 years ago

H (x)=x^2+ 8x+7 , what function family does this equation belong to?

Mathematics

2 answers:

Citrus2011 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

you could use math papa to help you

Semenov [28]3 years ago

6 0

Answer:

Algebra

Step-by-step explanation:

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Solve the following equations x-1=6/x

Whitepunk [10]

Answer:

or,x2-x=6

or,x2-x-6=0

or,x2-3x+2x-6=0

or,x(x-3)+2(x-3)=0

or,(x-3)(x+2)=0

so either x=3

or x=-2

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3 years ago

Can someone help with geometry study

Studentka2010 [4]

This question is incomplete.

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4 years ago

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PLEASEEE HELP MEEEE NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

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3 years ago

Jane takes her cat to the veterinarian. The veterinarian charges a $45 initial charge for the visit plus $22.50 per vaccine. Whi

uranmaximum [27]

The answer is D

Explanation:22.5 is how much each vaccine is and x is how many vaccines while y is the total cost and 45 is a standard fee

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3 years ago

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Select the domain and range Will give 100 points

8090 [49]

The domain is (-3,0) U (2,4)
The range is (-2,-1) U (1,2)

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3 years ago