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abruzzese [7]
3 years ago
11

Isiah is dividing 2x3 - x2 + 2x + 5 by x + 1 using a division table. His work is shown here. What is the value of A? –5 5 1x 5x

Mathematics
2 answers:
natita [175]3 years ago
6 0

Answer:

Option B) 5 is the answer

Step-by-step explanation:

Just took the assignment from Edge

Hope this helps (~ ̄▽ ̄)~

notka56 [123]3 years ago
3 0

Answer:

5

Step-by-step explanation:

The computation of the value of A is shown below:

Given that

2x^3 - x^2 + 2x + 5

i.e divided by x + 1

As we know that the total of -3x and (A)x must be equivalent to the third term of the initial polynomial which is 2x. It is given below

-3x+(A)x=2x

Now if we add 3x to  both sides of the equation so

(A)x=5x

Now dividing it by x

So,

x = 5

One more method to check whether it is correct or not

(x+1)(2x^{2}-3x+5)

That gives the

2x^{3}-x^{2}+2x+5

Hence the correct option is 2nd i.e 5

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Katya tutors and works in the college bookstore to pay for her college tuition. She makes $20 per hour tutoring and $8.50 per ho
strojnjashka [21]

We have to write the equation which represents Katya's earnings while tutoring and working in a book store is given as follows:  

She makes $20 an hour while tutoring. Let's say she tutors for 'x' hours in a day. So, she will make 20 \times x = 20x dollars by tutoring in a day.

She makes $8.50 an hour while working in the bookstore. Let's say she works for 'y' hours in the bookstore in a day. She will make 8.50 \times y = 8.50y dollars by working in the bookstore.

Therefore, the equation representing her total amount of money that she makes from both the places is given by:

$(20x + 8.50 y)

Since, Tution for 16 weeks is $5,736.  So the amount of tuition for each week is =\frac{5736}{16}= 378.5 dollars

So, Katya needs to make 378.50 dollars a week.

Since, She worked for 21 hours in the book store, so she makes  

21 \times 8.50 dollars= 178.50 dollars a week from the bookstore

So, now she needs to make = 378.50 - 178.50 = $180 a week while tutoring

Since she makes 20 dollars an hour from tutoring.  

She needs to tutor =\frac{180}{20} =9 hours a week to make the rest of the tuition.

So, Katya has to work for 9 hours in tutoring.

3 0
3 years ago
A baseball team played 140 regular season games. The ratio of the number of games they won the the number of games they lost was
Maksim231197 [3]

Answer:

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Step-by-step explanation:


5 0
3 years ago
A news organization previously stated that three of four people believed that the state of the economy was the country's most si
timama [110]

Answer:

Option d)

H_{0}: p = 0.75\\H_A: p \neq 0.75

Step-by-step explanation:

We are given the following in the question:

Three of four people believed that the state of the economy was the country's most significant concern.

They would like to test the new data against this prior belief.

The null hypothesis will state that the three of four people believed that the state of the economy was the country's most significant concern.

The alternate hypothesis will state that this is not true. It states that people believed that the state of the economy was the country's most significant concern is not the same.

p =\dfrac{3}{4} = 0.75

We design the null and the alternate hypothesis  

H_{0}: p = 0.75\\H_A: p \neq 0.75

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4 years ago
Nancy sells handcrafted bracelets at a flea market for $7. If her monthly fixed costs are $775 and each bracelet costs her $2.75
sleet_krkn [62]
Each bracelet costs $2.75 She sells them for $7 She makes 7-2.75 = $4.25/bracelet   Let b = # bracelets To make a profit she has to earn more than $775   4.25b > 775 b > 775/4.25 b > 182 6/17
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