2. reflect over y = -1, then (x-4, 7+3)​

4 answers
Question:

2. reflect over y = -1, then (x-4, 7+3)​

[tex]2. reflect over y = -1, then (x-4, 7+3)​[/tex]


Answers

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

[tex]x = \frac{-b+/-\sqrt{b^2-4ac} }{2a}[/tex]     (+/- is this ±)

plug in the numbers into the variables

[tex]x = \frac{-3+/-\sqrt{3^2-4(1)(7)} }{2(1)}[/tex]

[tex]x=\frac{-3+/-\sqrt{9-28} }{2}[/tex]

[tex]x=\frac{-3+/-\sqrt{-19} }{2}[/tex]

your answer is a

[tex]What is the solution to this equation? x^2+3x+7=0[/tex]

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵ [tex]7^{x}=77[/tex]

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴ [tex]ln(7^{x})=ln(77)[/tex]

- use the rule [tex]ln(a^{n})= nln(a)[/tex]

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴ [tex]x=\frac{ln(77)}{ln(7)}=2.23[/tex]

* the solution of the equation is 2.23 to the nearest 2 decimal places

3100

step-by-step explanation:

Is a for each hour he works,his earnings go up by $4
[tex]This graph shows how much anthony earns babysitting, compared with the number of hours he works. sel[/tex]

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