y=x^{2}-4x+3

CoormaBak9 2020-12-30 Answered

y = x^{2} - 4 x + 3

Ask Expert 1 See Answers

You can still ask an expert for help

Expert Answer

crocolylec

Answered 2020-12-31 Author has 100 answers

answer: x=1 or x= 3

This is helpful

This is helpful 60

You might be interested in

asked 2022-07-04

How to frame this set of linear equations?

2 x + 1 y + 2 z = A

0 x + 2 y + 2 z = A

1 x + 2 y + 1 z = A

I assume this can be rewritten as a matrix? How can I check if a solution exists such that x, y, and z are nonnegative?

See answers (1)

asked 2022-07-06

1.) Given the following equations:

3 x - y = 30 5 x - 3 y = 10

What are the values of

x

y

See answers (2)

asked 2021-12-11

Write an absolute value inequality for the following.

{\frac{x}{0.25} \leq x \leq 2.75}

See answers (1)

asked 2021-12-12

Solve the inequality

| x - 1 | \leq | x + 2 |

See answers (1)

asked 2021-12-03

Find the quadratic function that is best fit for f(x) defined by the table below

\begin{matrix} X & f (x) \\ 0 & 0 \\ 2 & 401 \\ 4 & 1598 \\ 6 & 3595 \\ 8 & 6407 \\ 10 & 10, 009 \end{matrix}

The quadratic function is y=.
(Type an equation using as the variable. Round to two decimals places as needed)

See answers (1)

asked 2022-06-12

See answers (0)

asked 2022-06-23

Teresa's Coffee Shop makes a blend that is a mixture of two types of coffee. Type A coffee costs Teresa 5.65 dollars per pound, and type B coffee costs 4.35 dollars per pound. This month's blend used three times as many pounds of type B coffee as type A, for a total cost of 673.20 dollars.
Find how many pounds of type A coffee were used.

See answers (2)

New questions

\frac{4}{9} \times 6

as a fraction in simplest form

Find the following. Explain your answer

f^{'} (0) for f (x) = x^{\frac{5}{3}} s g n x

Convert -15 degrees Celsius into degrees Fahrenheit using the formula

F = \frac{9}{5} C + 32

Round your answer to one decimal place.

Factorial equality

\frac{1 \cdot 3 \cdot 5 \dots (2 k - 1)}{2^{k} 2!}

= \frac{(2 k)!}{2^{k} 2^{k} k! k!}

In a generating function identity proof in my textbook there is a step that I can't wrap my head around.

\frac{1 \cdot 3 \cdot 5 \dots (2 k - 1)}{2^{k} 2!}

= \frac{(2 k)!}{2^{k} 2^{k} k! k!}

How does one get from the left side of the equation to the right side? Is there an intuitive explanation as for why this makes sense?

\frac{a b}{1 + a + b} + \frac{b c}{1 + b + c} + \frac{a c}{1 + a + c} \geq \frac{3}{2}

a

b

c

1 + a + b + c = 2 a b c

d = a + b + c

I got as far as to simplify the inequality into

\frac{1}{a} + \frac{1}{b} + \frac{1}{c} + \frac{1}{d - a} + \frac{1}{d - b} + \frac{1}{d - c} \geq 3

a = \frac{1 + b + c}{2 b c - 1}

I also can prove that

a b + a c + b c \geq \frac{3}{2}

But cannot manage to get to the desired result.

72 A person’s height is 5 feet, 10 inches. Which of the following is the appropriate estimate of this person’s height in centimeters?
a) 85 cm
b) 152 cm
c) 178 cm
d) 28 cm

Exponential continuous growth

\ln a

r

? Huh?
So, given a simple population continuous growth problem, it seems that the entirety of the internet uses

P = P_{0} e^{r t}

P

is the population over time,

P_{0}

is the initial population,

r

is the percentage of change, and

t

is time.
But this class is asserting that

P = P_{0} e^{(\ln a) (t)}

a = 1 + r

, and everything else stays the same.
So lets say a population starts at

10, 000

10

continuous growth rate. What is the population in

10

years?
The internet says that

P = 10, 000 e^{(.10) (10)} = 27, 182

But the class says that

P = 10, 000 e^{(\ln 1.10) 10} = 25, 937

a = 1 + r

1.10

)
but that equals the usual constant growth of

P = P_{0} a^{t} = 25937

What the heck? What am I missing?

Finding lowest number to multiply a fraction and get a whole
I am trying to find the multiplier for a fraction that will let me get a whole number.
So trying to solve

c = a \times b

a

is a number like

1.6

0.7

5.24

b

is the lowest number that

a

can be multiplied by to make

c

a whole number.
The use case is in a game I am programming the currency is only in whole numbers of a single denomination (single gold coins) if the player wants to sell a quantity of items that are worth a fractional value like

1.6

, how many must they sell so they can receive a whole number without throwing out the fractions.

a light-year (ly) is the distance that light travels in one year. the speed of light is

3.00 \cdot 10^{8} m / s

. how many miles are there in 1.00 ly? (

1.00 m i = 1.609 k m

and one year is 365.25 days.). show all the unit conversion factors you use and full calculations. express your calculations and final answer using powers of ten

20 kg

to pounds, using the appropriate unit notation.