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3 years ago

Factor completely x^2-2x+3

Mathematics

1 answer:

AnnyKZ [126]3 years ago

8 0

Step-by-step explanation:

This cannot be factored further.

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hey the question is, " The length of a rectangle is twice its width. The perimeter of the rectangle is 126 feet."

Tema [17]

Answer:

42 = l

21 = w

Step-by-step explanation:

{l = 2w

{126 = 2w + 2l

126 = 2w + 2[2w]

126 = 2w + 4w

126 = 6w

21 = w [Plug this back into both equations to get the length of 42]; 42 = l

I am joyous to assist you anytime.

4 0

4 years ago

Whats the product of 22 and 39?

MArishka [77]

858 is the answer I hope

4 0

4 years ago

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Use the method of reduction of order to find a second independent solution of the given differential equation. t2y'' + 3ty' + y

Charra [1.4K]

I assume you mean $y_1=t^{-1}$ , and not $y_1=t-1$ , since this doesn't satisfy the ODE.

Assume a second solution of the form $y_2=vy_1$ , where $v$ is a function of $t$ . Then

${y_2}'=v'y_1+v{y_1}'$

${y_2}''=v''y_1+2v'{y_1}'+v{y_1}''$

Substituting into the ODE gives

$t^2\left(\dfrac{v''}t-\dfrac{2v'}{t^2}+\dfrac{2v}{t^3}\right)+3t\left(\dfrac{v'}t-\dfrac v{t^2}\right)+\dfrac vt=0$

$\implies tv''+v'=0$

$\implies(tv')'=0$

$\implies tv'=C$

$\implies v'=\dfrac Ct$

$\implies v=C_1\ln|t|+C_2$

$\implies y_2=\dfrac{\ln t}t$

where we omit the second term because it's already accounted for by $y_1$ .

3 0

4 years ago

Someone help me with this please!

kifflom [539]

Answer:

input: x+4 output (x,y)

-2 -2 + 4 =2 2 (-2,2)

0 0 + 4 = 4 4 (0,4)

2 2 + 4 = 6 6 (2,6)

...

Step-by-step explanation:

continue by plugging in x to the equation, x is input and y is output

then just plot your (x,y) points on the graph.

4 0

3 years ago

Order the values from least to greatest.

Soloha48 [4]

The answer is c have a good day

8 0

3 years ago

Read 2 more answers