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icang [17]
3 years ago
5

Error Analysis: Describe the error in the way the difference of the two polynomials is set up and/or

Mathematics
1 answer:
maria [59]3 years ago
6 0

Answer:

  The distributive property is not properly applied to the second polynomial.

Step-by-step explanation:

For whatever reason, it is a common mistake to say that ...

  -(a +b +c) = -a +b +c . . . . WRONG!

Rather, it should be ...

  -(a +b +c) = -a -b -c . . . . CORRECT

You might be interested in
3. Sarah bought 3 pounds of apples for $6. How much did each pound of apples cost?
marta [7]

Answer:

A

Step-by-step explanation:

6/3 = 2

5 0
3 years ago
Read 2 more answers
(b) It takes 24 pounds of seed to completely plant a 3-acre field.
kap26 [50]

Answer: 8

Step-by-step explanation:

24  pounds for every 3 acres all you have to do is divide and you get 8

24 divided by 3 = 8     =)  

Hope this helps

7 0
3 years ago
The probability that Chloe acts hungry at 7pm given that she has already eaten dinner is 0.5. The probability that Chloe acts hu
kolezko [41]

Answer:

a) P(  Y^{C} | X ) = 0.180

b) P(Y | X^{C}  ) = 0.998

Step-by-step explanation:

Let

P(X) - Probability that he acts hungry

P(Y) - Probability that he had ate dinner,

Given,

P(X | Y) = 0.5

P(X | Y^{C}  ) = 0.99

P(Y) = 0.9

a.)

P(  Y^{C} | X ) =  \frac{P( X | Y^{C} ). P(Y^{C} )   }{P( X | Y^{C} ). P(Y^{C} ) + P( X | Y ) . P (Y) }

                  = \frac{(0.99)(0.1)}{(0.99)(0.1) + (0.5)(0.9)} = \frac{0.099}{0.549} = 0.180

⇒P(  Y^{C} | X ) = 0.180

b.)

P(Y | X^{C}  ) = \frac{(1 - P(X | Y ) ) . P(Y)}{P( X^{C} )  } =  \frac{(1 - P(X | Y ) ) . P(Y)}{ 1 - P( X )  }

                 = \frac{(1 - 0.5)(0.9)}{1 - [(0.99)(0.1) + (0.5)(0.9) ]} = \frac{(0.5)(0.9)}{1 - [(0.099) + (0.45) ]} = \frac{0.45}{1 - [0.540]} = \frac{0.45}{0.451} = 0.998

⇒P(Y | X^{C}  ) = 0.998

3 0
3 years ago
Yolanda opened a retirement account earning 5.5% interest per year, compounded monthly. She deposited $100 each month. Assume th
Naya [18.7K]

The balance in dollars and cents in Yolanda's account at the end of 4 years is $5,355.29

What is the future value of an ordinary?

An ordinary annuity is the one where the monthly deposit occurs at the end of each month rather than at the beginning of the months such its future value based on 5.5% annual interest rate can be determined thus:

FV=PMT*(1+r)^N-1/r

FV=balance in dollars and cents in Yolanda's account at the end of 4 years=unknown

PMT=monthly deposit=$100

r=monthly interest rate=5.5%/12=0.00458333333333333

N=number of monthly deposits in 4 years=4*12=48

FV=$100*(1+0.00458333333333333)^48-1/0.00458333333333333

FV=$5,355.29

Find out more about future value on:brainly.com/question/20187354

#SPJ1

Missing question:

What was the balance in dollars and cents in Yolanda's account at the end of 4 years?

8 0
1 year ago
Solve x2 - 8x = 3 by completing the square. which is the solution set of the equation ?
Alisiya [41]

we know that

(x-a)^{2}=x^{2}-2ax+a^{2}

in this problem we have

x^{2} - 8x = 3

so

equate

-8x=-2ax\\2a=8\\a=4

substitute

(x-4)^{2}=x^{2}-8x+16

therefore

x^{2} - 8x = 3

x^{2} - 8x+16 = 3+16

x^{2} - 8x+16 = 19

rewrite as perfect square

(x-4)^{2} = 19

(x-4) =(+/-)\sqrt{19}\\x=(+/-) \sqrt{19}+4

therefore

<u>the answer is</u>

the solution set is

x1= 4+\sqrt{19}\\x2=4- \sqrt{19}

6 0
3 years ago
Read 2 more answers
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