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amm1812
3 years ago
5

Can you please answer this for me

Mathematics
1 answer:
Vsevolod [243]3 years ago
3 0

Answer:

you are on the right track

Step-by-step explanation:

the second ones right so you are right :)

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Solve (x + 1)2 – 4(x + 1) + 2 = 0 using substitution.
solniwko [45]

For this case we have to:

Letu = x + 1

So:

u ^ 2-4u + 2 = 0

We have the solution will be given by:

u = \frac {-b \pm \sqrt {b ^ 2-4 (a) (c)}} {2 (a)}

Where:

a = 1\\b = -4\\c = 2

Substituting:

u = \frac {- (- 4) \pm \sqrt {(- 4) ^ 2-4 (1) (2)}} {2 (1)}\\u = \frac {4 \pm \sqrt {16-8}} {2}\\u = \frac {4 \pm \sqrt {8}} {2}\\u = \frac {4 \pm \sqrt {2 ^ 2 * 2}} {2}\\u = \frac {4 \pm2 \sqrt {2}} {2}

The solutions are:

u_ {1} = \frac {4 + 2 \sqrt {2}} {2} = 2 + \sqrt {2}\\u_ {2} = \frac {4-2 \sqrt {2}} {2} = 2- \sqrt {2}

Returning the change:

2+ \sqrt {2} = x_ {1} +1\\x_ {1} = 1 + \sqrt {2}\\2- \sqrt {2} = x_ {2} +1\\x_ {2} = 1- \sqrt {2}

Answer:

x_ {1} = 1 + \sqrt {2}\\x_ {2} = 1- \sqrt {2}

3 0
3 years ago
Read 2 more answers
Monte owned stock in Hadley Corporation which paid an annual dividend of $5.15 per share. If the closing price per share was $52
Lubov Fominskaja [6]

Answer: it going to be 10.2% percent

Step-by-step explanation: that how you get your answer as your -

10.2 %

8 0
2 years ago
Aimee is in charge of buying tickets for a trip to the movies. She can buy tickets at the theater or online. At the theater, 8 t
inessss [21]

Answer:

Aimee can save $24 by buying tickets at the lower price that is at the theater.

Step-by-step explanation:

First, you need to find the amount she would spent by buying tickets at the theater and online by using a rule of three:

Theater:

60→8

x  ←24

x=(60*24)/8=180

Online:

51→6

x ←24

x=(51*24)/6=204

Now, you need to calculate the difference:

$204-$180=$24

According to this, the answer is that Aimee can save $24 by buying tickets at the lower price that is at the theater.

3 0
3 years ago
Find the ratio of:<br> (a) 5 km to 400 m<br> (b) 2 hours to 160 minutes
aleksandr82 [10.1K]

Answer:

Answer - a) 1:80

               b) 1:80

Step-by-step explanation:

All the ratio should be written in lowest form. these are the answers for both the questions.

Pls Mark Brainliest !!!!!!!!!!!!!!

6 0
2 years ago
Read 2 more answers
Pls help:((((
Fiesta28 [93]

Answer: B

Step-by-step explanation:

l = 2

2 ( l + w ) = 48 , or , l + w = 24

w = 8 , & , so , l = 2 w = 16  inches.

4 0
3 years ago
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