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lbvjy [14]
3 years ago
7

Hello can you please help me posted picture of question

Mathematics
2 answers:
Rom4ik [11]3 years ago
6 0
For this case, the first thing we must do is to count similar terms.
 We have then:

 Polynomial 1:
 x ^ 2 = 2
 x = 1
 1 = 3
 The polynomial is:
 2x ^ 2 + x + 3

 Polynomial 2:
 x ^ 2 = 1
 x = 3
 1 = 4
 The polynomial is:
 x ^ 2 + 3x + 4


 Adding we have:
 (2x ^ 2 + x + 3) + (x ^ 2 + 3x + 4)
 x ^ 2 (2 + 1) + x (1 + 3) + (3 + 4)
 3x ^ 2 + 4x + 7

 Answer:
 3x ^ 2 + 4x + 7
 
option B
Stels [109]3 years ago
5 0
The answer is the letter b.
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Derek estimated the cost of his grocery bill to be $75, but it actually cost $110. Find the percent error rounded to the nearest
zhannawk [14.2K]

 The absolute change in price was $12−$8=$4.  Relative to the original price, it was 412, which is 0.3333 or 33.33%.

The answer was 1,150.0 but as a whole number its 1,150.

5 0
3 years ago
The area of the trapezium is 63cm and the top is 6cm and the bottom is 12cm what’s the height
steposvetlana [31]

Answer:

height = 7 cm

Step-by-step explanation:

The area (A) of a trapezium is calculated using the formula

A = \frac{1}{2} h(a + b)

where h is the height and a, b the parallel bases

here a = 6, b = 12 and A = 63, hence

\frac{1}{2} × h × (6 + 12) = 63

\frac{1}{2} h × 18 = 63

9h = 63 ( divide both sides by 9 )

h = 7

7 0
3 years ago
For which value of b can the expression x2 + bx + 18 be factored?
WINSTONCH [101]

An expression is defined as a set of numbers, variables, and mathematical operations. The value of b for which the expression x² + bx + 18 can be factored is 9.

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The value of b for which the given expression x² + bx + 18 can be factored is 9. This will make the expression factored as (x+3) and (x+6).

Thus, the value of b for which the expression x² + bx + 18 can be factored is 9.

Learn more about Expression:

brainly.com/question/13947055

#SPJ1

6 0
2 years ago
Given the function f ( x ) = 5 + x 2 , calculate the following values:
Drupady [299]

Answer:

f(x+1)=<em>fx+f</em>

<em>f(x)+f(6)=fx+6f</em>

<em />

Step-by-step explanation:

7 0
2 years ago
The ratio of nonfiction books to fiction books in a library is 105 to 189. Which statement describes this relationship?
kolezko [41]

Answer: A)There are 5 nonfiction books for every 9 fiction books in the library.  

Step-by-step explanation: If you do the math you realize that there are clearly less nonfiction books than fiction books.

105/5=21 and after 21*9 lines up and to check your work than

5*21=105 and 9*21=189 it is not B because the smaller number 105 is in front of the ratio 105:189 and 5:9

7 0
3 years ago
Read 2 more answers
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